Added GIS extension

.bzrignore

@@ -460,3 +460,5 @@ vio/test-sslserver
 vio/viotest-ssl
 Docs/mysql.xml
 mysql-test/r/rpl000001.eval
+myisam/rt_test
+myisam/sp_test

libmysqld/Makefile.am

@@ -53,7 +53,8 @@ sqlsources = convert.cc derror.cc field.cc field_conv.cc filesort.cc \
 	sql_rename.cc sql_repl.cc sql_select.cc sql_do.cc sql_show.cc \
 	sql_string.cc sql_table.cc sql_test.cc sql_udf.cc \
 	sql_update.cc sql_yacc.cc table.cc thr_malloc.cc time.cc \
-	unireg.cc uniques.cc stacktrace.c sql_union.cc hash_filo.cc
+	unireg.cc uniques.cc stacktrace.c sql_union.cc hash_filo.cc \
+	spatial.cc gstream.cc
 
 EXTRA_DIST = lib_vio.c
 

sql/Makefile.am

@@ -81,7 +81,8 @@ mysqld_SOURCES =	sql_lex.cc sql_handler.cc \
 			sql_udf.cc sql_analyse.cc sql_analyse.h sql_cache.cc \
 			slave.cc sql_repl.cc sql_union.cc \
 			mini_client.cc mini_client_errors.c \
-			stacktrace.c repl_failsafe.h repl_failsafe.cc
+			stacktrace.c repl_failsafe.h repl_failsafe.cc \
+			gstream.cc spatial.cc
 gen_lex_hash_SOURCES =	gen_lex_hash.cc
 gen_lex_hash_LDADD =	$(LDADD) $(CXXLDFLAGS)
 

sql/field.cc

@@ -3712,7 +3712,7 @@ Field_blob::Field_blob(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg,
   :Field_str(ptr_arg, (1L << min(blob_pack_length,3)*8)-1L,
 	     null_ptr_arg, null_bit_arg, unireg_check_arg, field_name_arg,
 	     table_arg),
-   packlength(blob_pack_length),binary_flag(binary_arg)
+   packlength(blob_pack_length),binary_flag(binary_arg), geom_flag(true)
 {
   flags|= BLOB_FLAG;
   if (binary_arg)
@@ -3954,8 +3954,30 @@ int Field_blob::cmp_binary(const char *a_ptr, const char *b_ptr,
 
 /* The following is used only when comparing a key */
 
-void Field_blob::get_key_image(char *buff,uint length)
+void Field_blob::get_key_image(char *buff,uint length, imagetype type)
 {
+  if(type == itMBR)
+  {
+    length-=HA_KEY_BLOB_LENGTH;
+    ulong blob_length=get_length(ptr);
+    char *blob;
+    get_ptr(&blob);
+    if(!blob_length)
+    {
+      return;
+    }
+
+    MBR mbr;
+    Geometry gobj;
+    gobj.create_from_wkb(blob,blob_length);
+    gobj.get_mbr(&mbr);
+    float8store(buff,    mbr.xmin);
+    float8store(buff+8,  mbr.xmax);
+    float8store(buff+16, mbr.ymin);
+    float8store(buff+24, mbr.ymax);
+    return;
+  }
+
   length-=HA_KEY_BLOB_LENGTH;
   uint32 blob_length=get_length(ptr);
   char *blob;
@@ -3977,6 +3999,31 @@ void Field_blob::set_key_image(char *buff,uint length)
   Field_blob::store(buff+2,length);
 }
 
+void Field_geom::get_key_image(char *buff,uint length, imagetype type)
+{
+  length-=HA_KEY_BLOB_LENGTH;
+  ulong blob_length=get_length(ptr);
+  char *blob;
+  get_ptr(&blob);
+  memcpy(buff+2,blob,length);
+
+  MBR mbr;
+  Geometry gobj;
+  gobj.create_from_wkb(blob,blob_length);
+  gobj.get_mbr(&mbr);
+  float8store(buff,    mbr.xmin);
+  float8store(buff+8,  mbr.xmax);
+  float8store(buff+16, mbr.ymin);
+  float8store(buff+24, mbr.ymax);
+  return;
+}
+
+void Field_geom::set_key_image(char *buff,uint length)
+{
+}
+
+
+
 int Field_blob::key_cmp(const byte *key_ptr, uint max_key_length)
 {
   char *blob1;
@@ -4606,6 +4653,7 @@ uint32 calc_pack_length(enum_field_types type,uint32 length)
   case FIELD_TYPE_LONG_BLOB:	return 4+portable_sizeof_char_ptr;
   case FIELD_TYPE_SET:
   case FIELD_TYPE_ENUM: abort(); return 0;	// This shouldn't happen
+  default: return 0;
   }
   return 0;					// This shouldn't happen
 }
@@ -4652,6 +4700,11 @@ Field *make_field(char *ptr, uint32 field_length,
       return new Field_blob(ptr,null_pos,null_bit,
 			    unireg_check, field_name, table,
 			    pack_length,f_is_binary(pack_flag) != 0);
+    if (f_is_geom(pack_flag))
+      return new Field_geom(ptr,null_pos,null_bit,
+			    unireg_check, field_name, table,
+			    pack_length,f_is_binary(pack_flag) != 0);
+
     if (interval)
     {
       if (f_is_enum(pack_flag))

sql/field.h

@@ -47,6 +47,9 @@ public:
   enum utype  { NONE,DATE,SHIELD,NOEMPTY,CASEUP,PNR,BGNR,PGNR,YES,NO,REL,
 		CHECK,EMPTY,UNKNOWN_FIELD,CASEDN,NEXT_NUMBER,INTERVAL_FIELD,
 		BIT_FIELD, TIMESTAMP_FIELD,CAPITALIZE,BLOB_FIELD};
+
+  enum imagetype { itRAW, itMBR};
+  
   utype		unireg_check;
   uint32	field_length;		// Length of field
   uint16	flags;
@@ -137,7 +140,7 @@ public:
     { memcpy(buff,ptr,length); }
   inline void set_image(char *buff,uint length)
     { memcpy(ptr,buff,length); }
-  virtual void get_key_image(char *buff,uint length)
+  virtual void get_key_image(char *buff,uint length, imagetype type)
     { get_image(buff,length); }
   virtual void set_key_image(char *buff,uint length)
     { set_image(buff,length); }
@@ -825,6 +828,7 @@ class Field_blob :public Field_str {
   uint packlength;
   String value;					// For temporaries
   bool binary_flag;
+  bool geom_flag;
 public:
   Field_blob(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg,
 	     enum utype unireg_check_arg, const char *field_name_arg,
@@ -834,7 +838,7 @@ public:
 	     struct st_table *table_arg, bool binary_arg)
     :Field_str((char*) 0,len_arg, maybe_null_arg ? (uchar*) "": 0,0,
 	       NONE, field_name_arg, table_arg),
-    packlength(3),binary_flag(binary_arg)
+    packlength(3),binary_flag(binary_arg), geom_flag(true)
     {
       flags|= BLOB_FLAG;
       if (binary_arg)
@@ -881,7 +885,7 @@ public:
       store_length(length);
       memcpy_fixed(ptr+packlength,&data,sizeof(char*));
     }
-  void get_key_image(char *buff,uint length);
+  void get_key_image(char *buff,uint length, imagetype type);
   void set_key_image(char *buff,uint length);
   void sql_type(String &str) const;
   inline bool copy()
@@ -910,6 +914,25 @@ public:
 };
 
 
+class Field_geom :public Field_blob {
+public:
+  Field_geom(char *ptr_arg, uchar *null_ptr_arg, uint null_bit_arg,
+	     enum utype unireg_check_arg, const char *field_name_arg,
+	     struct st_table *table_arg,uint blob_pack_length,
+             bool binary_arg)
+     :Field_blob(ptr_arg, null_ptr_arg, null_bit_arg, unireg_check_arg, 
+                 field_name_arg, table_arg, blob_pack_length,binary_arg) {}
+  Field_geom(uint32 len_arg,bool maybe_null_arg, const char *field_name_arg,
+	     struct st_table *table_arg, bool binary_arg)
+     :Field_blob(len_arg, maybe_null_arg, field_name_arg,
+                 table_arg, binary_arg) {}
+  enum ha_base_keytype key_type() const { return HA_KEYTYPE_VARBINARY; }
+
+  void get_key_image(char *buff,uint length, imagetype type);
+  void set_key_image(char *buff,uint length);
+};
+
+
 class Field_enum :public Field_str {
 protected:
   uint packlength;
@@ -1059,6 +1082,8 @@ bool test_if_int(const char *str,int length);
 #define FIELDFLAG_INTERVAL		256
 #define FIELDFLAG_BITFIELD		512	// mangled with dec!
 #define FIELDFLAG_BLOB			1024	// mangled with dec!
+#define FIELDFLAG_GEOM			2048
+
 #define FIELDFLAG_LEFT_FULLSCREEN	8192
 #define FIELDFLAG_RIGHT_FULLSCREEN	16384
 #define FIELDFLAG_FORMAT_NUMBER		16384	// predit: ###,,## in output
@@ -1085,6 +1110,7 @@ bool test_if_int(const char *str,int length);
 #define f_is_enum(x)	((x) & FIELDFLAG_INTERVAL)
 #define f_is_bitfield(x)	((x) & FIELDFLAG_BITFIELD)
 #define f_is_blob(x)		(((x) & (FIELDFLAG_BLOB | FIELDFLAG_NUMBER)) == FIELDFLAG_BLOB)
+#define f_is_geom(x)		((x) & FIELDFLAG_GEOM)
 #define f_is_equ(x)		((x) & (1+2+FIELDFLAG_PACK+31*256))
 #define f_settype(x)		(((int) x) << FIELDFLAG_PACK_SHIFT)
 #define f_maybe_null(x)		(x & FIELDFLAG_MAYBE_NULL)

sql/gstream.cc

+#include "mysql_priv.h"
+
+int GTextReadStream::get_next_toc_type() const
+{
+  const char *cur = m_cur;
+  while((*cur)&&(strchr(" \t\r\n",*cur)))
+  {
+    cur++;
+  }
+  if(!(*cur))
+  {
+    return eostream;
+  }
+
+  if(((*cur>='a') && (*cur<='z')) || ((*cur>='A') && (*cur<='Z')) || (*cur=='_'))
+  {
+    return word;
+  }
+
+  if(((*cur>='0') && (*cur<='9')) || (*cur=='-') || (*cur=='+') || (*cur=='.'))
+  {
+    return numeric;
+  }
+
+  if(*cur == '(')
+  {
+    return l_bra;
+  }
+  
+  if(*cur == ')')
+  {
+    return r_bra;
+  }
+
+  if(*cur == ',')
+  {
+    return comma;
+  }
+
+  return unknown;
+}
+
+const char *GTextReadStream::get_next_word(int *word_len)
+{
+  const char *cur = m_cur;
+  while((*cur)&&(strchr(" \t\r\n",*cur)))
+  {
+    cur++;
+  }
+  m_last_text_position = cur;
+
+  if(!(*cur))
+  {
+    return 0;
+  }
+
+  const char *wd_start = cur;
+
+  if(((*cur<'a') || (*cur>'z')) && ((*cur<'A') || (*cur>'Z')) && (*cur!='_'))
+  {
+    return NULL;
+  }
+
+  ++cur;
+
+  while(((*cur>='a') && (*cur<='z')) || ((*cur>='A') && (*cur<='Z')) || (*cur=='_') ||
+    ((*cur>='0') && (*cur<='9')))
+  {
+    ++cur;
+  }
+
+  *word_len = cur - wd_start;
+
+  m_cur = cur;
+
+  return wd_start;
+}
+
+int GTextReadStream::get_next_number(double *d)
+{
+  const char *cur = m_cur;
+  while((*cur)&&(strchr(" \t\r\n",*cur)))
+  {
+    cur++;
+  }
+
+  m_last_text_position = cur;
+  if(!(*cur))
+  {
+    set_error_msg("Numeric constant expected");
+    return 1;
+  }
+
+  if(((*cur<'0') || (*cur>'9')) && (*cur!='-') && (*cur!='+') && (*cur!='.'))
+  {
+    set_error_msg("Numeric constant expected");
+    return 1;
+  }
+
+  char *endptr;
+
+  *d = strtod(cur, &endptr);
+
+  if(endptr)
+  {
+    m_cur = endptr;
+  }
+
+  return 0;
+}
+
+char GTextReadStream::get_next_symbol()
+{
+  const char *cur = m_cur;
+  while((*cur)&&(strchr(" \t\r\n",*cur)))
+  {
+    cur++;
+  }
+  if(!(*cur))
+  {
+    return 0;
+  }
+
+  m_cur = cur + 1;
+  m_last_text_position = cur;
+
+  return *cur;
+}
+
+void GTextReadStream::set_error_msg(const char *msg)
+{
+  size_t len = strlen(msg);
+  m_err_msg = (char *)my_realloc(m_err_msg, len + 1, MYF(MY_ALLOW_ZERO_PTR));
+  memcpy(m_err_msg, msg, len + 1);
+}
+
+

sql/gstream.h

+#ifndef GSTREAM_H
+#define GSTREAM_H
+
+#ifdef WITHOUT_MYSQL
+  #include ".\rtree\myisamdef.h"
+#else
+  #include "mysql_priv.h"
+#endif
+
+class GTextReadStream
+{
+public:
+  enum TokTypes
+  {
+    unknown,
+    eostream,
+    word,
+    numeric,
+    l_bra,
+    r_bra,
+    comma,
+  };
+  GTextReadStream(const char *buffer, int size) : 
+    m_cur(buffer), m_limit(buffer + size), m_last_text_position(buffer), m_err_msg(NULL) {}
+  GTextReadStream() : m_cur(NULL), m_limit(NULL), m_err_msg(NULL) {}
+
+  ~GTextReadStream()
+  {
+    my_free(m_err_msg, MYF(MY_ALLOW_ZERO_PTR));
+  }
+
+  int get_next_toc_type() const;
+  const char *get_next_word(int *word_len);
+  int get_next_number(double *d);
+  char get_next_symbol();
+
+  const char *get_last_text_position() const
+  {
+    return m_last_text_position;
+  }
+
+  void set_error_msg(const char *msg);
+
+// caller should free this pointer
+  char *get_error_msg()
+  {
+    char *err_msg = m_err_msg;
+    m_err_msg = NULL;
+    return err_msg;
+  }
+protected:
+  const char *m_cur;
+  const char *m_limit;
+  const char *m_last_text_position;
+  char *m_err_msg;
+};
+
+#endif
+
+
+

sql/ha_myisam.cc

@@ -28,6 +28,7 @@
 #include "../srclib/myisam/myisamdef.h"
 #else
 #include "../myisam/myisamdef.h"
+#include "../myisam/rt_index.h"
 #endif
 
 ulong myisam_sort_buffer_size;
@@ -763,7 +764,7 @@ int ha_myisam::index_read(byte * buf, const byte * key,
 			  uint key_len, enum ha_rkey_function find_flag)
 {
   statistic_increment(ha_read_key_count,&LOCK_status);
-  int error=mi_rkey(file,buf,active_index, key, key_len, find_flag);
+  int error=mi_rkey(file,buf,active_index, key, key_len, (enum ha_rkey_function)find_flag);
   table->status=error ? STATUS_NOT_FOUND: 0;
   return error;
 }
@@ -772,7 +773,7 @@ int ha_myisam::index_read_idx(byte * buf, uint index, const byte * key,
 			      uint key_len, enum ha_rkey_function find_flag)
 {
   statistic_increment(ha_read_key_count,&LOCK_status);
-  int error=mi_rkey(file,buf,index, key, key_len, find_flag);
+  int error=mi_rkey(file,buf,index, key, key_len, (enum ha_rkey_function)find_flag);
   table->status=error ? STATUS_NOT_FOUND: 0;
   return error;
 }
@@ -1008,7 +1009,8 @@ int ha_myisam::create(const char *name, register TABLE *table,
   pos=table->key_info;
   for (i=0; i < table->keys ; i++, pos++)
   {
-    keydef[i].flag= (pos->flags & (HA_NOSAME | HA_FULLTEXT));
+    keydef[i].flag= (pos->flags & (HA_NOSAME | HA_FULLTEXT | HA_SPATIAL));
+    keydef[i].key_alg=pos->key_alg; // +BAR
     keydef[i].seg=keyseg;
     keydef[i].keysegs=pos->key_parts;
     for (j=0 ; j < pos->key_parts ; j++)

sql/item.h

@@ -357,6 +357,7 @@ public:
 };
 
 
+#include "spatial.h"
 #include "item_sum.h"
 #include "item_func.h"
 #include "item_cmpfunc.h"

sql/item_cmpfunc.cc

@@ -24,6 +24,7 @@
 #include "mysql_priv.h"
 #include <m_ctype.h>
 
+
 /*
 ** Test functions
 ** These returns 0LL if false and 1LL if true and null if some arg is null
@@ -1348,3 +1349,83 @@ Item_func_regex::~Item_func_regex()
 }
 
 #endif /* USE_REGEX */
+
+
+/****************************************************************
+ Classes and functions for spatial relations
+*****************************************************************/
+
+longlong Item_func_spatial_rel::val_int()
+{
+  String *res1=args[0]->val_str(&tmp_value1);
+  String *res2=args[1]->val_str(&tmp_value2);
+  Geometry g1, g2;
+  MBR mbr1,mbr2;
+
+  if ((null_value=(args[0]->null_value ||
+                   args[1]->null_value ||
+                   g1.create_from_wkb(res1->ptr(),res1->length()) || 
+                   g2.create_from_wkb(res2->ptr(),res2->length()) ||
+                   g1.get_mbr(&mbr1) || 
+                   g2.get_mbr(&mbr2))))
+   return 0;
+
+  switch (spatial_rel)
+  {
+    case SP_CONTAINS_FUNC:
+      return mbr1.contains(&mbr2);
+    case SP_WITHIN_FUNC:
+      return mbr1.within(&mbr2);
+    case SP_EQUALS_FUNC:
+      return mbr1.equals(&mbr2);
+    case SP_DISJOINT_FUNC:
+      return mbr1.disjoint(&mbr2);
+    case SP_INTERSECTS_FUNC:
+      return mbr1.intersects(&mbr2);
+    case SP_TOUCHES_FUNC:
+      return mbr1.touches(&mbr2);
+    case SP_OVERLAPS_FUNC:
+      return mbr1.overlaps(&mbr2);
+    case SP_CROSSES_FUNC:
+      return 0;
+    default:
+      break;
+  }
+
+  null_value=1;
+  return 0;
+}
+
+longlong Item_func_isempty::val_int()
+{
+  String tmp; 
+  null_value=0;
+  return args[0]->null_value ? 1 : 0;
+}
+
+longlong Item_func_issimple::val_int()
+{
+  String tmp;
+  String *wkb=args[0]->val_str(&tmp);
+
+  if ((null_value= (!wkb || args[0]->null_value )))
+    return 0;
+  /* TODO: Ramil or Holyfoot, add real IsSimple calculation */
+  return 0;
+}
+
+longlong Item_func_isclosed::val_int()
+{
+  String tmp;
+  String *wkb=args[0]->val_str(&tmp);
+  Geometry geom;
+  int isclosed;
+
+  null_value= (!wkb || 
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) ||
+               !GEOM_METHOD_PRESENT(geom,is_closed) ||
+               geom.is_closed(&isclosed));
+
+  return (longlong) isclosed;
+}

sql/item_cmpfunc.h

@@ -570,3 +570,82 @@ inline Item *and_conds(Item *a,Item *b)
     cond->update_used_tables();
   return cond;
 }
+
+
+/**************************************************************
+Spatial relations
+***************************************************************/
+
+class Item_func_spatial_rel :public Item_bool_func2
+{
+  enum Functype spatial_rel;
+public:
+  Item_func_spatial_rel(Item *a,Item *b, enum Functype sp_rel) :
+  	Item_bool_func2(a,b) { spatial_rel = sp_rel; }
+  longlong val_int();
+  enum Functype functype() const 
+  { 
+    switch (spatial_rel)
+    {
+      case SP_CONTAINS_FUNC:
+        return SP_WITHIN_FUNC;
+      case SP_WITHIN_FUNC:
+        return SP_CONTAINS_FUNC;
+      default:
+        return spatial_rel;
+    }
+  }
+  enum Functype rev_functype() const { return spatial_rel; }
+  const char *func_name() const 
+  { 
+    switch (spatial_rel)
+    {
+      case SP_CONTAINS_FUNC:
+        return "contains";
+      case SP_WITHIN_FUNC:
+        return "within";
+      case SP_EQUALS_FUNC:
+        return "equals";
+      case SP_DISJOINT_FUNC:
+        return "disjoint";
+      case SP_INTERSECTS_FUNC:
+        return "intersects";
+      case SP_TOUCHES_FUNC:
+        return "touches";
+      case SP_CROSSES_FUNC:
+        return "crosses";
+      case SP_OVERLAPS_FUNC:
+        return "overlaps";
+      default:
+        return "sp_unknown"; 
+    }
+  }
+};
+
+
+class Item_func_isempty :public Item_bool_func
+{
+public:
+  Item_func_isempty(Item *a) :Item_bool_func(a) {}
+  longlong val_int();
+  optimize_type select_optimize() const { return OPTIMIZE_NONE; }
+  const char *func_name() const { return "isempty"; }
+};
+
+class Item_func_issimple :public Item_bool_func
+{
+public:
+  Item_func_issimple(Item *a) :Item_bool_func(a) {}
+  longlong val_int();
+  optimize_type select_optimize() const { return OPTIMIZE_NONE; }
+  const char *func_name() const { return "issimple"; }
+};
+
+class Item_func_isclosed :public Item_bool_func
+{
+public:
+  Item_func_isclosed(Item *a) :Item_bool_func(a) {}
+  longlong val_int();
+  optimize_type select_optimize() const { return OPTIMIZE_NONE; }
+  const char *func_name() const { return "isclosed"; }
+};

sql/item_create.cc

@@ -413,3 +413,158 @@ Item *create_func_cast(Item *a, Item_cast cast_type)
   }
   return res;
 }
+
+Item *create_func_geometry_from_text(Item* a)
+{
+  return new Item_func_geometry_from_text(a);
+}
+
+Item *create_func_as_text(Item* a)
+{
+  return new Item_func_as_text(a);
+}
+
+Item *create_func_startpoint(Item* a)
+{
+  return new Item_func_spatial_decomp(a, Item_func::SP_STARTPOINT);
+}
+
+Item *create_func_endpoint(Item* a)
+{
+  return new Item_func_spatial_decomp(a, Item_func::SP_ENDPOINT);
+}
+
+Item *create_func_exteriorring(Item* a)
+{
+  return new Item_func_spatial_decomp(a, Item_func::SP_EXTERIORRING);
+}
+
+Item *create_func_pointn(Item* a, Item* b)
+{
+  return new Item_func_spatial_decomp_n(a,b,Item_func::SP_POINTN);
+}
+
+Item *create_func_interiorringn(Item* a, Item* b)
+{
+  return new Item_func_spatial_decomp_n(a,b,Item_func::SP_INTERIORRINGN);
+}
+
+Item *create_func_geometryn(Item* a, Item* b)
+{
+  return new Item_func_spatial_decomp_n(a,b,Item_func::SP_GEOMETRYN);
+}
+
+Item *create_func_centroid(Item* a)
+{
+  return new Item_func_centroid(a);
+}
+
+Item *create_func_envelope(Item* a)
+{
+  return new Item_func_envelope(a);
+}
+
+Item *create_func_equals(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_EQUALS_FUNC);
+}
+
+Item *create_func_disjoint(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_DISJOINT_FUNC);
+}
+
+Item *create_func_intersects(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_INTERSECTS_FUNC);
+}
+
+Item *create_func_touches(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_TOUCHES_FUNC);
+}
+
+Item *create_func_crosses(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_CROSSES_FUNC);
+}
+
+Item *create_func_within(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_WITHIN_FUNC);
+}
+
+Item *create_func_contains(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_CONTAINS_FUNC);
+}
+
+Item *create_func_overlaps(Item* a, Item* b)
+{
+  return new Item_func_spatial_rel(a, b, Item_func::SP_OVERLAPS_FUNC);
+}
+
+Item *create_func_isempty(Item* a)
+{
+  return new Item_func_isempty(a);
+}
+
+Item *create_func_issimple(Item* a)
+{
+  return new Item_func_issimple(a);
+}
+
+Item *create_func_isclosed(Item* a)
+{
+  return new Item_func_isclosed(a);
+}
+
+Item *create_func_geometry_type(Item* a)
+{
+  return new Item_func_geometry_type(a);
+}
+
+Item *create_func_dimension(Item* a)
+{
+  return new Item_func_dimension(a);
+}
+
+Item *create_func_x(Item* a)
+{
+  return new Item_func_x(a);
+}
+
+Item *create_func_y(Item* a)
+{
+  return new Item_func_y(a);
+}
+
+Item *create_func_numpoints(Item* a)
+{
+  return new Item_func_numpoints(a);
+}
+
+Item *create_func_numinteriorring(Item* a)
+{
+  return new Item_func_numinteriorring(a);
+}
+
+Item *create_func_numgeometries(Item* a)
+{
+  return new Item_func_numgeometries(a);
+}
+
+Item *create_func_area(Item* a)
+{
+  return new Item_func_area(a);
+}
+
+Item *create_func_glength(Item* a)
+{
+  return new Item_func_glength(a);
+}
+
+Item *create_func_point(Item* a, Item* b)
+{
+  return new Item_func_point(a,b);
+}

sql/item_create.h

@@ -88,3 +88,41 @@ Item *create_func_version(void);
 Item *create_func_weekday(Item* a);
 Item *create_load_file(Item* a);
 Item *create_wait_for_master_pos(Item* a, Item* b);
+
+Item *create_func_geometry_from_text(Item* a);
+Item *create_func_as_text(Item* a);
+Item *create_func_startpoint(Item* a);
+Item *create_func_endpoint(Item* a);
+Item *create_func_exteriorring(Item* a);
+Item *create_func_centroid(Item* a);
+Item *create_func_envelope(Item* a);
+Item *create_func_pointn(Item* a, Item* b);
+Item *create_func_interiorringn(Item* a, Item* b);
+Item *create_func_geometryn(Item* a, Item* b);
+
+Item *create_func_equals(Item* a, Item* b);
+Item *create_func_disjoint(Item* a, Item* b);
+Item *create_func_intersects(Item* a, Item* b);
+Item *create_func_touches(Item* a, Item* b);
+Item *create_func_crosses(Item* a, Item* b);
+Item *create_func_within(Item* a, Item* b);
+Item *create_func_contains(Item* a, Item* b);
+Item *create_func_overlaps(Item* a, Item* b);
+
+Item *create_func_isempty(Item* a);
+Item *create_func_issimple(Item* a);
+Item *create_func_isclosed(Item* a);
+
+Item *create_func_geometry_type(Item* a);
+Item *create_func_dimension(Item* a);
+Item *create_func_x(Item* a);
+Item *create_func_y(Item* a);
+Item *create_func_area(Item* a);
+Item *create_func_glength(Item* a);
+
+Item *create_func_numpoints(Item* a);
+Item *create_func_numinteriorring(Item* a);
+Item *create_func_numgeometries(Item* a);
+
+Item *create_func_point(Item* a,Item* b);
+

sql/item_func.cc

@@ -27,6 +27,8 @@
 #include <time.h>
 #include <ft_global.h>
 #include "slave.h" // for wait_for_master_pos
+#include "gstream.h"
+
 
 /* return TRUE if item is a constant */
 
@@ -2252,3 +2254,130 @@ Item *get_system_var(LEX_STRING name)
   my_error(ER_UNKNOWN_SYSTEM_VARIABLE,MYF(0),name);
   return 0;
 }
+
+
+/**************************************************************************
+Spatial functions
+***************************************************************************/
+
+longlong Item_func_dimension::val_int()
+{
+  uint32 dim;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb || 
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               geom.dimension(&dim));
+
+  return (longlong) dim;
+}
+
+longlong Item_func_numinteriorring::val_int()
+{
+  uint32 num;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb || 
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               !GEOM_METHOD_PRESENT(geom,num_interior_ring) || 
+	       geom.num_interior_ring(&num));
+
+  return (longlong) num;
+}
+
+longlong Item_func_numgeometries::val_int()
+{
+  uint32 num;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb ||
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               !GEOM_METHOD_PRESENT(geom,num_geometries) || 
+               geom.num_geometries(&num));
+
+  return (longlong) num;
+}
+
+longlong Item_func_numpoints::val_int()
+{
+  uint32 num;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb ||
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) ||
+               !GEOM_METHOD_PRESENT(geom,num_points) ||
+               geom.num_points(&num));
+
+  return (longlong) num;
+}
+
+
+double Item_func_x::val()
+{
+  double res;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb ||
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               !GEOM_METHOD_PRESENT(geom,get_x) || 
+               geom.get_x(&res));
+
+  return res;
+}
+
+
+double Item_func_y::val()
+{
+  double res;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb ||
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               !GEOM_METHOD_PRESENT(geom,get_y) || 
+               geom.get_y(&res));
+
+  return res;
+}
+
+
+double Item_func_area::val()
+{
+  double res;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb ||
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               !GEOM_METHOD_PRESENT(geom,area) || 
+               geom.area(&res));
+
+  return res;
+}
+
+
+double Item_func_glength::val()
+{
+  double res;
+  String *wkb=args[0]->val_str(&value);
+  Geometry geom;
+
+  null_value= (!wkb || 
+               args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               !GEOM_METHOD_PRESENT(geom,length) || 
+               geom.length(&res));
+  return res;
+}

sql/item_func.h

@@ -39,7 +39,12 @@ public:
   enum Functype { UNKNOWN_FUNC,EQ_FUNC,EQUAL_FUNC,NE_FUNC,LT_FUNC,LE_FUNC,
 		  GE_FUNC,GT_FUNC,FT_FUNC,
 		  LIKE_FUNC,NOTLIKE_FUNC,ISNULL_FUNC,ISNOTNULL_FUNC,
-		  COND_AND_FUNC,COND_OR_FUNC,BETWEEN,IN_FUNC,INTERVAL_FUNC};
+		  COND_AND_FUNC,COND_OR_FUNC,BETWEEN,IN_FUNC,INTERVAL_FUNC,
+		  SP_EQUALS_FUNC, SP_DISJOINT_FUNC,SP_INTERSECTS_FUNC,
+		  SP_TOUCHES_FUNC,SP_CROSSES_FUNC,SP_WITHIN_FUNC,
+		  SP_CONTAINS_FUNC,SP_OVERLAPS_FUNC,
+		  SP_STARTPOINT,SP_ENDPOINT,SP_EXTERIORRING,
+		  SP_POINTN,SP_GEOMETRYN,SP_INTERIORRINGN};
   enum optimize_type { OPTIMIZE_NONE,OPTIMIZE_KEY,OPTIMIZE_OP, OPTIMIZE_NULL };
   enum Type type() const { return FUNC_ITEM; }
   virtual enum Functype functype() const   { return UNKNOWN_FUNC; }
@@ -944,6 +949,86 @@ public:
   void init_search(bool no_order);
 };
 
+
+class Item_func_dimension :public Item_int_func
+{
+  String value;
+public:
+  Item_func_dimension(Item *a) :Item_int_func(a) {}
+  longlong val_int();
+  const char *func_name() const { return "dimension"; }
+  void fix_length_and_dec() { max_length=10; }
+};
+
+
+class Item_func_x :public Item_real_func
+{
+  String value;
+public:
+  Item_func_x(Item *a) :Item_real_func(a) {}
+  double val();
+  const char *func_name() const { return "x"; }
+};
+
+
+class Item_func_y :public Item_real_func
+{
+  String value;
+public:
+  Item_func_y(Item *a) :Item_real_func(a) {}
+  double val();
+  const char *func_name() const { return "y"; }
+};
+
+
+class Item_func_numgeometries :public Item_int_func
+{
+  String value;
+public:
+  Item_func_numgeometries(Item *a) :Item_int_func(a) {}
+  longlong val_int();
+  const char *func_name() const { return "numgeometries"; }
+  void fix_length_and_dec() { max_length=10; }
+};
+
+class Item_func_numinteriorring :public Item_int_func
+{
+  String value;
+public:
+  Item_func_numinteriorring(Item *a) :Item_int_func(a) {}
+  longlong val_int();
+  const char *func_name() const { return "numinteriorring"; }
+  void fix_length_and_dec() { max_length=10; }
+};
+
+class Item_func_numpoints :public Item_int_func
+{
+  String value;
+public:
+  Item_func_numpoints(Item *a) :Item_int_func(a) {}
+  longlong val_int();
+  const char *func_name() const { return "numpoints"; }
+  void fix_length_and_dec() { max_length=10; }
+};
+
+class Item_func_area :public Item_real_func
+{
+  String value;
+public:
+  Item_func_area(Item *a) :Item_real_func(a) {}
+  double val();
+  const char *func_name() const { return "area"; }
+};
+
+class Item_func_glength :public Item_real_func
+{
+  String value;
+public:
+  Item_func_glength(Item *a) :Item_real_func(a) {}
+  double val();
+  const char *func_name() const { return "glength"; }
+};
+
 class Item_func_match_nl :public Item_func_match
 {
 public:

sql/item_strfunc.cc

@@ -1953,3 +1953,333 @@ String* Item_func_inet_ntoa::val_str(String* str)
   str->length(str->length()-1);			// Remove last '.';
   return str;
 }
+
+/*******************************************************
+General functions for spatial objects
+********************************************************/
+
+#include "gstream.h"
+
+String *Item_func_geometry_from_text::val_str(String *str)
+{
+  Geometry geom;
+  String *wkt = args[0]->val_str(str);
+  GTextReadStream trs(wkt->ptr(), wkt->length());
+
+  str->length(0);
+  if ((null_value=(args[0]->null_value || geom.create_from_wkt(&trs, str, 0))))
+    return 0;
+  return str;
+}
+
+
+void Item_func_geometry_from_text::fix_length_and_dec()
+{
+  max_length=MAX_BLOB_WIDTH;
+}
+
+
+String *Item_func_as_text::val_str(String *str)
+{
+  String *wkt = args[0]->val_str(str);
+  Geometry geom;
+  
+  str->length(0);
+  if ((null_value=(args[0]->null_value ||
+                   geom.create_from_wkb(wkt->ptr(),wkt->length()) || 
+                   geom.as_wkt(str))))
+    return 0;
+  return str;
+}
+
+void Item_func_as_text::fix_length_and_dec()
+{
+  max_length=MAX_BLOB_WIDTH;
+}
+
+String *Item_func_geometry_type::val_str(String *str)
+{
+  String *wkt = args[0]->val_str(str);
+  Geometry geom;
+
+  if ((null_value=(args[0]->null_value ||
+                   geom.create_from_wkb(wkt->ptr(),wkt->length()))))
+    return 0;
+  str->copy(geom.get_class_info()->m_name);
+  return str;
+}
+
+
+String *Item_func_envelope::val_str(String *str)
+{
+  String *wkb = args[0]->val_str(str);
+  Geometry geom;
+
+  null_value = args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               geom.envelope(str);
+
+  return null_value ? 0 : str;
+}
+
+
+String *Item_func_centroid::val_str(String *str)
+{
+  String *wkb = args[0]->val_str(str);
+  Geometry geom;
+
+  null_value = args[0]->null_value ||
+               geom.create_from_wkb(wkb->ptr(),wkb->length()) || 
+               !GEOM_METHOD_PRESENT(geom,centroid) ||
+               geom.centroid(str);
+
+  return null_value ? 0: str;
+}
+
+
+/***********************************************
+  Spatial decomposition functions
+***********************************************/
+
+String *Item_func_spatial_decomp::val_str(String *str)
+{
+  String *wkb = args[0]->val_str(str);
+  Geometry geom;
+
+  if ((null_value = (args[0]->null_value ||
+                     geom.create_from_wkb(wkb->ptr(),wkb->length()))))
+    return 0;
+
+  null_value=1;
+  switch(decomp_func)
+  {
+    case SP_STARTPOINT:
+      if (!GEOM_METHOD_PRESENT(geom,start_point) || geom.start_point(str))
+        goto ret;
+      break;
+
+    case SP_ENDPOINT:
+      if (!GEOM_METHOD_PRESENT(geom,end_point) || geom.end_point(str))
+        goto ret;
+      break;
+
+    case SP_EXTERIORRING:
+      if (!GEOM_METHOD_PRESENT(geom,exterior_ring) || geom.exterior_ring(str))
+        goto ret;
+      break;
+
+    default:
+      goto ret;
+  }
+  null_value=0;
+
+ret:  
+  return null_value ? 0 : str;
+}
+
+
+String *Item_func_spatial_decomp_n::val_str(String *str)
+{
+  String *wkb  =        args[0]->val_str(str);
+  long n       = (long) args[1]->val_int();
+  Geometry geom;
+
+  if ((null_value = (args[0]->null_value || 
+                     args[1]->null_value ||
+                     geom.create_from_wkb(wkb->ptr(),wkb->length()) )))
+    return 0;
+
+  null_value=1;
+
+  switch(decomp_func_n)
+  {
+    case SP_POINTN:
+      if (!GEOM_METHOD_PRESENT(geom,point_n) || 
+          geom.point_n(n,str))
+        goto ret;
+      break;
+
+    case SP_GEOMETRYN:
+      if (!GEOM_METHOD_PRESENT(geom,geometry_n) || 
+          geom.geometry_n(n,str))
+        goto ret;
+      break;
+
+    case SP_INTERIORRINGN:
+      if (!GEOM_METHOD_PRESENT(geom,interior_ring_n) || 
+          geom.interior_ring_n(n,str))
+        goto ret;
+      break;
+
+    default:
+      goto ret;
+  }
+  null_value=0;
+
+ret:
+  return null_value ? 0 : str;
+}
+
+
+
+/***********************************************
+Functions to concatinate various spatial objects
+************************************************/
+
+
+/*
+*  Concatinate doubles into Point
+*/
+
+
+String *Item_func_point::val_str(String *str)
+{
+  if ( (null_value = (args[0]->null_value || 
+                     args[1]->null_value ||
+                     str->realloc(1+4+8+8))))
+    return 0;
+
+  str->length(0);
+  str->q_append((char)Geometry::wkbNDR);
+  str->q_append((uint32)Geometry::wkbPoint);
+  str->q_append((double)args[0]->val());
+  str->q_append((double)args[1]->val());
+  return str;
+}
+
+
+/*
+  Concatinates various items into various collections 
+  with checkings for valid wkb type of items.
+  For example, MultiPoint can be a collection of Points only.
+  coll_type contains wkb type of target collection.
+  item_type contains a valid wkb type of items.
+  In the case when coll_type is wkbGeometryCollection, 
+  we do not check wkb type of items, any is valid.
+*/
+
+String *Item_func_spatial_collection::val_str(String *str)
+{
+  uint i;
+
+  null_value=1;
+
+  str->length(0);
+  if(str->reserve(9,512))
+    return 0;
+
+  str->q_append((char)Geometry::wkbNDR);
+  str->q_append((uint32)coll_type);
+  str->q_append((uint32)arg_count);
+
+  for (i = 0; i < arg_count; ++i)
+  {
+    if (args[i]->null_value)
+      goto ret;
+
+    String *res = args[i]->val_str(str);
+
+    if ( coll_type == Geometry::wkbGeometryCollection )
+    {
+      /* 
+         In the case of GeometryCollection we don't need 
+         any checkings for item types, so just copy them
+         into target collection
+      */
+      if ((null_value=(str->reserve(res->length(),512))))
+        goto ret;
+        
+      str->q_append(res->ptr(),res->length());
+    }
+    else
+    {
+      uint32 wkb_type, len=res->length();
+      const char *data=res->ptr()+1;
+
+      /* 
+         In the case of named collection we must to 
+         check that items are of specific type, let's
+         do this checking now
+      */
+      
+      if (len<5)
+        goto ret;
+      wkb_type=uint4korr(data);
+      data+=4;
+      len-=5;
+      if ( wkb_type != item_type )
+        goto ret;
+      
+      switch(coll_type)
+      {
+         case Geometry::wkbMultiPoint:
+         case Geometry::wkbMultiLineString:
+         case Geometry::wkbMultiPolygon:
+           if (len<WKB_HEADER_SIZE) 
+             goto ret;
+           
+           data+=WKB_HEADER_SIZE;
+           len-=WKB_HEADER_SIZE;
+           if (str->reserve(len,512))
+             goto ret;
+           str->q_append(data,len);
+           break;
+
+         case Geometry::wkbLineString:
+           if (str->reserve(POINT_DATA_SIZE,512))
+             goto ret;
+           str->q_append(data,POINT_DATA_SIZE);
+           break;
+
+         case Geometry::wkbPolygon:
+           { 
+             uint32 n_points;
+             double x1, y1, x2, y2;
+
+             if (len < WKB_HEADER_SIZE + 4 + 8 + 8) 
+               goto ret;
+             data+=WKB_HEADER_SIZE;
+             len-=WKB_HEADER_SIZE;
+
+             uint32 llen=len;
+             const char *ldata=data;
+             
+             n_points=uint4korr(data);
+             data+=4;
+             float8get(x1,data);
+             data+=8;
+             float8get(y1,data);
+             data+=8;
+             
+             len-= 4 + 8 + 8;
+             
+             if (len < n_points * POINT_DATA_SIZE)
+               goto ret;
+             data+=(n_points-2) * POINT_DATA_SIZE;
+
+             float8get(x2,data);
+             float8get(y2,data+8);
+             
+             if ((x1 != x2) || (y1 != y2))
+               goto ret;
+             
+             if (str->reserve(llen,512))
+               goto ret;
+             str->q_append(ldata, llen);
+           }
+           break;
+         
+         default:
+           goto ret;
+      }
+    }
+  }
+
+  if (str->length() > max_allowed_packet)
+    goto ret;
+
+  null_value = 0;
+
+ret:
+  return null_value ? 0 : str;
+}

sql/item_strfunc.h

@@ -475,3 +475,196 @@ public:
   const char *func_name() const { return "inet_ntoa"; }
   void fix_length_and_dec() { decimals = 0; max_length=3*8+7; }
 };
+
+
+/*******************************************************
+Spatial functions
+********************************************************/
+
+class Item_func_geometry_from_text :public Item_str_func
+{
+public:
+  Item_func_geometry_from_text(Item *a) :Item_str_func(a) {}
+  const char *func_name() const { return "geometryfromtext"; }
+  String *val_str(String *);
+  void fix_length_and_dec();
+};
+
+class Item_func_as_text :public Item_str_func
+{
+public:
+  Item_func_as_text(Item *a) :Item_str_func(a) {}
+  const char *func_name() const { return "astext"; }
+  String *val_str(String *);
+  void fix_length_and_dec();
+};
+
+class Item_func_geometry_type :public Item_str_func
+{
+public:
+  Item_func_geometry_type(Item *a) :Item_str_func(a) {}
+  String *val_str(String *);
+  const char *func_name() const { return "geometrytype"; }
+  void fix_length_and_dec() 
+  {
+     max_length=20; // "GeometryCollection" is the most long
+  };
+};
+
+class Item_func_centroid :public Item_str_func
+{
+public:
+  Item_func_centroid(Item *a) :Item_str_func(a) {}
+  const char *func_name() const { return "centroid"; }
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+};
+
+class Item_func_envelope :public Item_str_func
+{
+public:
+  Item_func_envelope(Item *a) :Item_str_func(a) {}
+  const char *func_name() const { return "envelope"; }
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+};
+
+class Item_func_point :public Item_str_func
+{
+public:
+  Item_func_point(Item *a,Item *b) :Item_str_func(a,b) {}
+  const char *func_name() const { return "point"; }
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+};
+
+class Item_func_spatial_decomp :public Item_str_func
+{
+  enum Functype decomp_func;
+public:
+  Item_func_spatial_decomp(Item *a, Item_func::Functype ft) :
+  	Item_str_func(a) { decomp_func = ft; }
+  const char *func_name() const 
+  { 
+    switch (decomp_func)
+    {
+      case SP_STARTPOINT:
+        return "startpoint";
+      case SP_ENDPOINT:
+        return "endpoint";
+      case SP_EXTERIORRING:
+        return "exteriorring";
+      default:
+        return "spatial_decomp_unknown"; 
+    }
+  }
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+};
+
+class Item_func_spatial_decomp_n :public Item_str_func
+{
+  enum Functype decomp_func_n;
+public:
+  Item_func_spatial_decomp_n(Item *a, Item *b, Item_func::Functype ft) :
+  	Item_str_func(a, b) { decomp_func_n = ft; }
+  const char *func_name() const 
+  { 
+    switch (decomp_func_n)
+    {
+      case SP_POINTN:
+        return "pointn";
+      case SP_GEOMETRYN:
+        return "geometryn";
+      case SP_INTERIORRINGN:
+        return "interiorringn";
+      default:
+        return "spatial_decomp_n_unknown"; 
+    }
+  }
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+};
+
+
+class Item_func_spatial_collection :public Item_str_func
+{
+  String tmp_value;
+  enum Geometry::wkbType coll_type; 
+  enum Geometry::wkbType item_type;
+public:
+  Item_func_spatial_collection(
+     List<Item> &list, enum Geometry::wkbType ct, enum Geometry::wkbType it) :
+  Item_str_func(list)
+  {
+    coll_type=ct;
+    item_type=it;
+  }
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+  const char *func_name() const { return "multipoint"; }
+};
+
+
+/*
+class Item_func_multipoint :public Item_str_func
+{
+  String tmp_value;
+public:
+  Item_func_multipoint(List<Item> &list) :Item_str_func(list) {}
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+  const char *func_name() const { return "multipoint"; }
+};
+
+class Item_func_linestring :public Item_str_func
+{
+  String tmp_value;
+public:
+  Item_func_linestring(List<Item> &list) :Item_str_func(list) {}
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+  const char *func_name() const { return "linestring"; }
+};
+
+class Item_func_multilinestring :public Item_str_func
+{
+  String tmp_value;
+public:
+  Item_func_multilinestring(List<Item> &list) :Item_str_func(list) {}
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+  const char *func_name() const { return "multilinestring"; }
+};
+
+class Item_func_polygon :public Item_str_func
+{
+  String tmp_value;
+public:
+  Item_func_polygon(List<Item> &list) :Item_str_func(list) {}
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+  const char *func_name() const { return "polygon"; }
+};
+
+class Item_func_multipolygon :public Item_str_func
+{
+  String tmp_value;
+public:
+  Item_func_multipolygon(List<Item> &list) :Item_str_func(list) {}
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+  const char *func_name() const { return "multipolygon"; }
+};
+
+class Item_func_geometrycollection :public Item_str_func
+{
+  String tmp_value;
+public:
+  Item_func_geometrycollection(List<Item> &list) :Item_str_func(list) {}
+  String *val_str(String *);
+  void fix_length_and_dec(){max_length=MAX_BLOB_WIDTH;}
+  const char *func_name() const { return "geometrycollection"; }
+};
+
+*/

sql/lex.h

@@ -75,6 +75,7 @@ static SYMBOL symbols[] = {
   { "BOOL",		SYM(BOOL_SYM),0,0},
   { "BOOLEAN",		SYM(BOOLEAN_SYM),0,0},
   { "BOTH",		SYM(BOTH),0,0},
+  { "BTREE",		SYM(BTREE_SYM),0,0},
   { "BY",		SYM(BY),0,0},
   { "CACHE",		SYM(CACHE_SYM),0,0},
   { "CASCADE",		SYM(CASCADE),0,0},
@@ -158,12 +159,14 @@ static SYMBOL symbols[] = {
   { "FULL",		SYM(FULL),0,0},
   { "FULLTEXT",		SYM(FULLTEXT_SYM),0,0},
   { "FUNCTION",		SYM(UDF_SYM),0,0},
+  { "GEOM",		SYM(GEOM_SYM),0,0},
   { "GLOBAL",		SYM(GLOBAL_SYM),0,0},
   { "GRANT",		SYM(GRANT),0,0},
   { "GRANTS",	        SYM(GRANTS),0,0},
   { "GROUP",		SYM(GROUP),0,0},
   { "HAVING",		SYM(HAVING),0,0},
   { "HANDLER",		SYM(HANDLER_SYM),0,0},
+  { "HASH",		SYM(HASH_SYM),0,0},
   { "HEAP",		SYM(HEAP_SYM),0,0},
   { "HIGH_PRIORITY",	SYM(HIGH_PRIORITY),0,0},
   { "HOUR",		SYM(HOUR_SYM),0,0},
@@ -296,6 +299,7 @@ static SYMBOL symbols[] = {
   { "ROLLBACK",		SYM(ROLLBACK_SYM),0,0},
   { "ROW",		SYM(ROW_SYM),0,0},
   { "ROWS",		SYM(ROWS_SYM),0,0},
+  { "RTREE",		SYM(RTREE_SYM),0,0},
   { "SECOND",		SYM(SECOND_SYM),0,0},
   { "SELECT",		SYM(SELECT_SYM),0,0},
   { "SERIALIZABLE",	SYM(SERIALIZABLE_SYM),0,0},
@@ -308,6 +312,7 @@ static SYMBOL symbols[] = {
   { "SLAVE",            SYM(SLAVE),0,0},
   { "SMALLINT",		SYM(SMALLINT),0,0},
   { "SONAME",		SYM(UDF_SONAME_SYM),0,0},
+  { "SPATIAL",		SYM(SPATIAL_SYM),0,0},
   { "SQL_AUTO_IS_NULL", SYM(SQL_AUTO_IS_NULL),0,0},
   { "SQL_BIG_RESULT",	SYM(SQL_BIG_RESULT),0,0},
   { "SQL_BIG_SELECTS",	SYM(SQL_BIG_SELECTS),0,0},
@@ -384,8 +389,10 @@ static SYMBOL sql_functions[] = {
   { "ABS",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_abs)},
   { "ACOS",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_acos)},
   { "ADDDATE",		SYM(DATE_ADD_INTERVAL),0,0},
+  { "AREA",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_area)},
   { "ASCII",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ascii)},
   { "ASIN",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_asin)},
+  { "ASTEXT",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_as_text)},
   { "ATAN",		SYM(ATAN),0,0},
   { "ATAN2",		SYM(ATAN),0,0},
   { "BENCHMARK",	SYM(BENCHMARK_SYM),0,0},
@@ -396,17 +403,20 @@ static SYMBOL sql_functions[] = {
   { "CAST",		SYM(CAST_SYM),0,0},
   { "CEILING",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ceiling)},
   { "BIT_LENGTH",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_bit_length)},
+  { "CENTROID",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_centroid)},
   { "CHAR_LENGTH",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_char_length)},
   { "CHARACTER_LENGTH", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_char_length)},
   { "COALESCE",		SYM(COALESCE),0,0},
   { "CONCAT",		SYM(CONCAT),0,0},
   { "CONCAT_WS",	SYM(CONCAT_WS),0,0},
   { "CONNECTION_ID",	SYM(FUNC_ARG0),0,CREATE_FUNC(create_func_connection_id)},
+  { "CONTAINS",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_contains)},
   { "CONV",		SYM(FUNC_ARG3),0,CREATE_FUNC(create_func_conv)},
   { "CONVERT",		SYM(CONVERT_SYM),0,0},
   { "COUNT",		SYM(COUNT_SYM),0,0},
   { "COS",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_cos)},
   { "COT",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_cot)},
+  { "CROSSES",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_crosses)},
   { "CURDATE",		SYM(CURDATE),0,0},
   { "CURTIME",		SYM(CURTIME),0,0},
   { "DATE_ADD",		SYM(DATE_ADD_INTERVAL),0,0},
@@ -420,9 +430,15 @@ static SYMBOL sql_functions[] = {
   { "DEGREES",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_degrees)},
   { "DES_ENCRYPT",	SYM(DES_ENCRYPT_SYM),0,0},
   { "DES_DECRYPT",	SYM(DES_DECRYPT_SYM),0,0},
+  { "DIMENSION",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_dimension)},
+  { "DISJOINT",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_disjoint)},
   { "ELT",		SYM(ELT_FUNC),0,0},
   { "ENCODE",		SYM(ENCODE_SYM),0,0},
   { "ENCRYPT",		SYM(ENCRYPT),0,0},
+  { "ENDPOINT",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_endpoint)},
+  { "ENVELOPE",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_envelope)},
+  { "EQUALS",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_equals)},
+  { "EXTERIORRING",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_exteriorring)},
   { "EXTRACT",		SYM(EXTRACT_SYM),0,0},
   { "EXP",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_exp)},
   { "EXPORT_SET",	SYM(EXPORT_SET),0,0},
@@ -434,6 +450,11 @@ static SYMBOL sql_functions[] = {
   { "FROM_DAYS",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_from_days)},
   { "FROM_UNIXTIME",	SYM(FROM_UNIXTIME),0,0},
   { "GET_LOCK",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_get_lock)},
+  { "GEOMETRYCOLLECTION",SYM(GEOMETRYCOLLECTION),0,0},
+  { "GEOMETRYN",	SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_geometryn)},
+  { "GEOMETRYTYPE",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_geometry_type)},
+  { "GEOMFROMTEXT",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_geometry_from_text)},
+  { "GLENGTH",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_glength)},
   { "GREATEST",		SYM(GREATEST_SYM),0,0},
   { "GROUP_UNIQUE_USERS",	SYM(GROUP_UNIQUE_USERS),0,0},
   { "HEX",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_hex)},
@@ -441,10 +462,16 @@ static SYMBOL sql_functions[] = {
   { "INET_ATON",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_inet_aton)},
   { "INET_NTOA",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_inet_ntoa)},
   { "INSTR",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_instr)},
+  { "INTERIORRINGN",	SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_interiorringn)},
+  { "INTERSECTS",	SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_intersects)},
+  { "ISCLOSED",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_isclosed)},
+  { "ISEMPTY",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_isempty)},
   { "ISNULL",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_isnull)},
+  { "ISSIMPLE",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_issimple)},
   { "LCASE",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_lcase)},
   { "LEAST",		SYM(LEAST_SYM),0,0},
   { "LENGTH",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_length)},
+  { "LINESTRING",	SYM(LINESTRING),0,0},
   { "LOAD_FILE",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_load_file)},
   { "LOCATE",		SYM(LOCATE),0,0},
   { "LOG",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_log)},
@@ -460,15 +487,25 @@ static SYMBOL sql_functions[] = {
   { "MID",		SYM(SUBSTRING),0,0},	/* unireg function */
   { "MIN",		SYM(MIN_SYM),0,0},
   { "MOD",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_mod)},
+  { "MULTILINESTRING",	SYM(MULTILINESTRING),0,0},
+  { "MULTIPOINT",	SYM(MULTIPOINT),0,0},
+  { "MULTIPOLYGON",	SYM(MULTIPOLYGON),0,0},
   { "MONTHNAME",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_monthname)},
   { "NOW",		SYM(NOW_SYM),0,0},
   { "NULLIF",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_nullif)},
+  { "NUMGEOMETRIES",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_numgeometries)},
+  { "NUMINTERIORRING",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_numinteriorring)},
+  { "NUMPOINTS",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_numpoints)},
   { "OCTET_LENGTH",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_length)},
   { "OCT",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_oct)},
   { "ORD",              SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ord)},
+  { "OVERLAPS",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_overlaps)},
   { "PERIOD_ADD",	SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_period_add)},
   { "PERIOD_DIFF",	SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_period_diff)},
   { "PI",		SYM(FUNC_ARG0),0,CREATE_FUNC(create_func_pi)},
+  { "POINT",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_point)},
+  { "POINTN",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_pointn)},
+  { "POLYGON",		SYM(POLYGON),0,0},
   { "POSITION",		SYM(POSITION_SYM),0,0},
   { "POW",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_pow)},
   { "POWER",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_pow)},
@@ -489,6 +526,7 @@ static SYMBOL sql_functions[] = {
   { "SOUNDEX",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_soundex)},
   { "SPACE",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_space)},
   { "SQRT",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_sqrt)},
+  { "STARTPOINT",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_startpoint)},
   { "STD",		SYM(STD_SYM),0,0},
   { "STDDEV",		SYM(STD_SYM),0,0},
   { "STRCMP",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_strcmp)},
@@ -501,6 +539,7 @@ static SYMBOL sql_functions[] = {
   { "TIME_FORMAT",	SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_time_format)},
   { "TIME_TO_SEC",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_time_to_sec)},
   { "TO_DAYS",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_to_days)},
+  { "TOUCHES",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_touches)},
   { "TRIM",		SYM(TRIM),0,0},
   { "UCASE",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ucase)},
   { "UNIQUE_USERS",	SYM(UNIQUE_USERS),0,0},
@@ -510,5 +549,9 @@ static SYMBOL sql_functions[] = {
   { "VERSION",		SYM(FUNC_ARG0),0,CREATE_FUNC(create_func_version)},
   { "WEEK",		SYM(WEEK_SYM),0,0},
   { "WEEKDAY",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_weekday)},
+  { "WITHIN",		SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_within)},
+  { "X",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_x)},
+  { "Y",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_y)},
   { "YEARWEEK",		SYM(YEARWEEK),0,0}
+  
 };

sql/opt_range.cc

@@ -172,8 +172,9 @@ public:
   void store(uint length,char **min_key,uint min_key_flag,
 	     char **max_key, uint max_key_flag)
   {
-    if (!(min_flag & NO_MIN_RANGE) &&
-	!(min_key_flag & (NO_MIN_RANGE | NEAR_MIN)))
+    if ((min_flag & GEOM_FLAG) ||
+        (!(min_flag & NO_MIN_RANGE) &&
+	!(min_key_flag & (NO_MIN_RANGE | NEAR_MIN))))
     {
       if (maybe_null && *min_value)
       {
@@ -659,6 +660,8 @@ int SQL_SELECT::test_quick_select(key_map keys_to_use, table_map prev_tables,
 	key_parts->null_bit= key_info->key_part[part].null_bit;
 	if (key_parts->field->type() == FIELD_TYPE_BLOB)
 	  key_parts->part_length+=HA_KEY_BLOB_LENGTH;
+        key_parts->image_type = 
+          (key_info->flags & HA_SPATIAL) ? Field::itMBR : Field::itRAW;
       }
       param.real_keynr[param.keys++]=idx;
     }
@@ -676,6 +679,7 @@ int SQL_SELECT::test_quick_select(key_map keys_to_use, table_map prev_tables,
       {
 	SEL_ARG **key,**end,**best_key=0;
 
+
 	for (idx=0,key=tree->keys, end=key+param.keys ;
 	     key != end ;
 	     key++,idx++)
@@ -1042,7 +1046,7 @@ get_mm_leaf(PARAM *param, Field *field, KEY_PART *key_part,
     DBUG_RETURN(0);
   if (maybe_null)
     *str=0;					// Not NULL
-  field->get_key_image(str+maybe_null,key_part->part_length);
+  field->get_key_image(str+maybe_null,key_part->part_length, key_part->image_type);
   if (!(tree=new SEL_ARG(field,str,str)))
     DBUG_RETURN(0);
 
@@ -1067,6 +1071,41 @@ get_mm_leaf(PARAM *param, Field *field, KEY_PART *key_part,
   case Item_func::GE_FUNC:
     tree->max_flag=NO_MAX_RANGE;
     break;
+  case Item_func::SP_EQUALS_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_EQUAL;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+  case Item_func::SP_DISJOINT_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_DISJOINT;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+  case Item_func::SP_INTERSECTS_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_INTERSECT;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+  case Item_func::SP_TOUCHES_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_INTERSECT;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+
+  case Item_func::SP_CROSSES_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_INTERSECT;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+  case Item_func::SP_WITHIN_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_WITHIN;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+
+  case Item_func::SP_CONTAINS_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_CONTAIN;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+  case Item_func::SP_OVERLAPS_FUNC:
+      tree->min_flag=GEOM_FLAG | HA_READ_MBR_INTERSECT;// NEAR_MIN;//512;
+      tree->max_flag=NO_MAX_RANGE;
+      break;
+
   default:
     break;
   }
@@ -2187,18 +2226,30 @@ check_quick_keys(PARAM *param,uint idx,SEL_ARG *key_tree,
       !memcmp(param->min_key,param->max_key,min_key_length))
     tmp=1;					// Max one record
   else
+  {
+    if(tmp_min_flag & GEOM_FLAG)
+    {
+      tmp=param->table->file->
+	records_in_range((int) keynr,(byte*)(param->min_key + 1),
+	  min_key_length, (ha_rkey_function)(tmp_min_flag ^ GEOM_FLAG), 
+          (byte *)NullS,0,HA_READ_KEY_EXACT);
+    }
+    else
+    {
       tmp=param->table->file->
 	records_in_range((int) keynr,
 			 (byte*) (!min_key_length ? NullS :
 				  param->min_key),
 			 min_key_length,
-			 (tmp_min_flag & NEAR_MIN ?
-			  HA_READ_AFTER_KEY : HA_READ_KEY_EXACT),
+                         tmp_min_flag & NEAR_MIN ?
+			  HA_READ_AFTER_KEY : HA_READ_KEY_EXACT,
 			 (byte*) (!max_key_length ? NullS :
 				  param->max_key),
 			 max_key_length,
 			 (tmp_max_flag & NEAR_MAX ?
 			  HA_READ_BEFORE_KEY : HA_READ_AFTER_KEY));
+    }
+  }
  end:
   if (tmp == HA_POS_ERROR)			// Impossible range
     return tmp;
@@ -2294,10 +2345,15 @@ get_quick_keys(PARAM *param,QUICK_SELECT *quick,KEY_PART *key,
     }
   }
   else
-    flag=key_tree->min_flag | key_tree->max_flag;
+  {
+    flag = (key_tree->min_flag & GEOM_FLAG) ?
+      key_tree->min_flag : key_tree->min_flag | key_tree->max_flag;
+  }
 
   /* Ensure that some part of min_key and max_key are used.  If not,
      regard this as no lower/upper range */
+  if((flag & GEOM_FLAG) == 0)
+  {
     if (tmp_min_key != param->min_key)
       flag&= ~NO_MIN_RANGE;
     else
@@ -2306,7 +2362,7 @@ get_quick_keys(PARAM *param,QUICK_SELECT *quick,KEY_PART *key,
       flag&= ~NO_MAX_RANGE;
     else
       flag|= NO_MAX_RANGE;
-
+  }
   if (flag == 0)
   {
     uint length= (uint) (tmp_min_key - param->min_key);
@@ -2439,13 +2495,19 @@ int QUICK_SELECT::get_next()
     int result;
     if (range)
     {						// Already read through key
-       result=((range->flag & EQ_RANGE) ?
+/*       result=((range->flag & EQ_RANGE) ?
 	       file->index_next_same(record, (byte*) range->min_key,
 				     range->min_length) :
 	       file->index_next(record));
+*/
+       result=((range->flag & (EQ_RANGE | GEOM_FLAG) ) ?
+	       file->index_next_same(record, (byte*) range->min_key,
+				     range->min_length) :
+	       file->index_next(record));
+
       if (!result)
       {
-	if (!cmp_next(*it.ref()))
+	if ((range->flag & GEOM_FLAG) || !cmp_next(*it.ref()))
 	  DBUG_RETURN(0);
       }
       else if (result != HA_ERR_END_OF_FILE)
@@ -2454,6 +2516,23 @@ int QUICK_SELECT::get_next()
 
     if (!(range=it++))
       DBUG_RETURN(HA_ERR_END_OF_FILE);		// All ranges used
+
+    if(range->flag & GEOM_FLAG)
+    {
+      if ((result = file->index_read(record,
+                           (byte*) (range->min_key + ((range->flag & GEOM_FLAG) > 0)),
+			   range->min_length,
+                           (ha_rkey_function)(range->flag ^ GEOM_FLAG))))
+
+      {
+        if (result != HA_ERR_KEY_NOT_FOUND)
+	  DBUG_RETURN(result);
+        range=0;					// Not found, to next range
+        continue;
+      }
+      DBUG_RETURN(0);
+    }
+
     if (range->flag & NO_MIN_RANGE)		// Read first record
     {
       int error;
@@ -2464,13 +2543,14 @@ int QUICK_SELECT::get_next()
       range=0;			// No matching records; go to next range
       continue;
     }
-    if ((result = file->index_read(record,(byte*) range->min_key,
+    if ((result = file->index_read(record,
+                         (byte*) (range->min_key + ((range->flag & GEOM_FLAG) > 0)),
 			 range->min_length,
-			 ((range->flag & NEAR_MIN) ?
+			 (range->flag & NEAR_MIN) ?
 			  HA_READ_AFTER_KEY:
 			  (range->flag & EQ_RANGE) ?
 			  HA_READ_KEY_EXACT :
-			  HA_READ_KEY_OR_NEXT))))
+			  HA_READ_KEY_OR_NEXT)))
 
     {
       if (result != HA_ERR_KEY_NOT_FOUND)

sql/opt_range.h

@@ -31,11 +31,14 @@
 #define UNIQUE_RANGE	16
 #define EQ_RANGE	32
 #define NULL_RANGE	64
+#define GEOM_FLAG      128
+
 
 typedef struct st_key_part {
   uint16           key,part,part_length;
   uint8            null_bit;
   Field            *field;
+  Field::imagetype image_type;
 } KEY_PART;
 
 class QUICK_RANGE :public Sql_alloc {

sql/opt_sum.cc

@@ -343,7 +343,7 @@ static bool find_range_key(TABLE_REF *ref, Field* field, COND *cond)
 	// Save found constant
 	if (part->null_bit)
 	  *key_ptr++= (byte) test(part->field->is_null());
-	part->field->get_key_image((char*) key_ptr,part->length);
+        part->field->get_key_image((char*) key_ptr,part->length, Field::itRAW);
 	key_ptr+=part->store_length - test(part->null_bit);
 	left_length-=part->store_length;
       }

sql/spatial.cc

+#include "mysql_priv.h"
+
+
+#define MAX_DIGITS_IN_DOUBLE 16
+
+/***************************** GClassInfo *******************************/
+
+#define IMPLEMENT_GEOM(class_name, type_id, name)       \
+{                                                       \
+  (GF_InitFromText) &class_name::init_from_text,          \
+  (GF_GetDataAsText) &class_name::get_data_as_text,        \
+  (GF_GetDataSize) &class_name::get_data_size,            \
+  (GF_GetMBR) &class_name::get_mbr,                      \
+  (GF_GetD) &class_name::get_x,                          \
+  (GF_GetD) &class_name::get_y,                          \
+  (GF_GetD) &class_name::length,                        \
+  (GF_GetD) &class_name::area,                          \
+  (GF_GetI) &class_name::is_closed,                      \
+  (GF_GetUI) &class_name::num_interior_ring,              \
+  (GF_GetUI) &class_name::num_points,                    \
+  (GF_GetUI) &class_name::num_geometries,                \
+  (GF_GetUI) &class_name::dimension,                    \
+  (GF_GetWS) &class_name::start_point,                   \
+  (GF_GetWS) &class_name::end_point,                     \
+  (GF_GetWS) &class_name::exterior_ring,                 \
+  (GF_GetWS) &class_name::centroid,                     \
+  (GF_GetUIWS) &class_name::point_n,                     \
+  (GF_GetUIWS) &class_name::interior_ring_n,              \
+  (GF_GetUIWS) &class_name::geometry_n,                  \
+  class_name::type_id,                                  \
+  name,                                                 \
+  NULL                                                  \
+},
+
+
+static Geometry::GClassInfo ci_collection[] =
+{
+  IMPLEMENT_GEOM(GPoint, wkbPoint, "POINT")
+  IMPLEMENT_GEOM(GLineString, wkbLineString, "LINESTRING")
+  IMPLEMENT_GEOM(GPolygon, wkbPolygon, "POLYGON")
+  IMPLEMENT_GEOM(GMultiPoint, wkbMultiPoint, "MULTIPOINT")
+  IMPLEMENT_GEOM(GMultiLineString, wkbMultiLineString, "MULTILINESTRING")
+  IMPLEMENT_GEOM(GMultiPolygon, wkbMultiPolygon, "MULTIPOLYGON")
+  IMPLEMENT_GEOM(GGeometryCollection, wkbGeometryCollection, "GEOMETRYCOLLECTION")
+};
+
+static Geometry::GClassInfo *ci_collection_end = ci_collection + sizeof(ci_collection);
+
+/***************************** Geometry *******************************/
+
+Geometry::GClassInfo *Geometry::find_class(int type_id)
+{
+  for (GClassInfo *cur_rt = ci_collection; cur_rt < ci_collection_end; ++cur_rt)
+  {
+    if (cur_rt->m_type_id == type_id)
+    {
+      return cur_rt;
+    }
+  }
+  return NULL;
+}
+ 
+Geometry::GClassInfo *Geometry::find_class(const char *name, size_t len)
+{
+  for (GClassInfo *cur_rt = ci_collection; 
+              cur_rt < ci_collection_end; ++cur_rt)
+  {
+    if ((cur_rt->m_name[len] == 0) && 
+            (strncmp(cur_rt->m_name, name, len) == 0))
+    {
+      return cur_rt;
+    }
+  }
+  return NULL;
+}
+
+int Geometry::create_from_wkb(const char *data, uint32 data_len)
+{
+  uint32 geom_type;
+
+  if (data_len < 1+4)
+    return 1;
+  data += sizeof(char);
+
+//FIXME: check byte ordering
+  geom_type = uint4korr(data);
+  data += 4;
+  m_vmt = find_class(geom_type);
+  if (!m_vmt) return -1;
+  m_data = data;
+  m_data_end = data + data_len;
+  return 0;
+}
+
+int Geometry::create_from_wkt(GTextReadStream *trs, String *wkt, int init_stream)
+{
+  int name_len;
+  const char *name = trs->get_next_word(&name_len);
+  if (!name)
+  {
+    trs->set_error_msg("Geometry name expected");
+    return -1;
+  }
+  if (!(m_vmt = find_class(name, name_len)))
+    return -1;
+  if (wkt->reserve(1 + 4, 512))
+    return 1;
+  wkt->q_append((char)wkbNDR);
+  wkt->q_append((uint32)get_class_info()->m_type_id);
+  if (trs->get_next_symbol() != '(')
+  {
+    trs->set_error_msg("'(' expected");
+    return -1;
+  }
+  if (init_from_text(trs, wkt)) return 1;
+  if (trs->get_next_symbol() != ')')
+  {        
+    trs->set_error_msg("')' expected");                             
+    return -1;
+  }                  
+  if (init_stream)  
+  {
+    init_from_wkb(wkt->ptr(), wkt->length());
+    shift_wkb_header();
+  }
+  return 0;
+}
+
+int Geometry::envelope(String *result) const
+{
+  MBR mbr;
+
+  get_mbr(&mbr);
+
+  if (result->reserve(1+4*3+sizeof(double)*10))
+    return 1;
+
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbPolygon);
+  result->q_append((uint32)1);
+  result->q_append((uint32)5);
+  result->q_append(mbr.xmin);
+  result->q_append(mbr.ymin);
+  result->q_append(mbr.xmax);
+  result->q_append(mbr.ymin);
+  result->q_append(mbr.xmax);
+  result->q_append(mbr.ymax);
+  result->q_append(mbr.xmin);
+  result->q_append(mbr.ymax);
+  result->q_append(mbr.xmin);
+  result->q_append(mbr.ymin);
+
+  return 0;
+}
+
+/***************************** Point *******************************/
+
+size_t GPoint::get_data_size() const
+{
+  return POINT_DATA_SIZE;
+}
+
+int GPoint::init_from_text(GTextReadStream *trs, String *wkb)
+{
+  double x, y;
+  if (wkb->reserve(sizeof(double)*2))
+    return 1;
+  if (trs->get_next_number(&x))
+    return 1;
+  if (trs->get_next_number(&y))
+    return 1;
+  wkb->q_append(x);
+  wkb->q_append(y);
+
+  return 0;
+}
+
+int GPoint::get_data_as_text(String *txt) const
+{
+  double x, y;
+  if (get_xy(&x, &y))
+    return 1;
+  if (txt->reserve(MAX_DIGITS_IN_DOUBLE * 2 + 1))
+    return 1;
+  txt->qs_append(x);
+  txt->qs_append(' ');
+  txt->qs_append(y);
+  return 0;
+}
+
+int GPoint::get_mbr(MBR *mbr) const
+{
+  double x, y;
+  if (get_xy(&x, &y))
+    return 1;
+  mbr->add_xy(x, y);
+  return 0;
+}
+
+/***************************** LineString *******************************/
+
+size_t GLineString::get_data_size() const 
+{
+  uint32 n_points = uint4korr(m_data);
+
+  return 4 + n_points*POINT_DATA_SIZE;
+}
+
+int GLineString::init_from_text(GTextReadStream *trs, String *wkb)
+{
+  uint32 n_points = 0;
+  int np_pos = wkb->length();
+  GPoint p;
+
+  if (wkb->reserve(4, 512))
+    return 1;
+  
+  wkb->q_append((uint32)n_points);
+
+  for (;;)
+  {
+    if (p.init_from_text(trs, wkb))
+      return 1;
+    ++n_points;
+    if (trs->get_next_toc_type() == GTextReadStream::comma)
+      trs->get_next_symbol();
+    else break;
+  }
+
+  if (n_points<2)
+  {
+    trs->set_error_msg("Too few points in LINESTRING");
+    return 1;
+  }
+
+  wkb->WriteAtPosition(np_pos, n_points);
+
+  return 0;
+}
+
+int GLineString::get_data_as_text(String *txt) const
+{
+  uint32 n_points;
+  const char *data = m_data;
+
+  if (no_data(data, 4))
+    return 1;
+
+  n_points = uint4korr(data);
+  data += 4;
+
+  if (no_data(data, sizeof(double) * 2 * n_points))
+    return 1;
+
+  if (txt->reserve(((MAX_DIGITS_IN_DOUBLE + 1)*2 + 1) * n_points))
+    return 1;
+  for (; n_points>0; --n_points)
+  {
+    double x, y;
+    float8get(x, data);
+    data += sizeof(double);
+    float8get(y, data);
+    data += sizeof(double);
+    txt->qs_append(x);
+    txt->qs_append(' ');
+    txt->qs_append(y);
+    txt->qs_append(',');
+  }
+  txt->length(txt->length() - 1);
+  return 0;
+}
+
+int GLineString::get_mbr(MBR *mbr) const
+{
+  uint32 n_points;
+  const char *data = m_data;
+
+  if (no_data(data, 4))
+    return 1;
+
+  n_points = uint4korr(data);
+  data += 4;
+
+  if (no_data(data, sizeof(double) * 2 * n_points))
+    return 1;
+  for (; n_points>0; --n_points)
+  {
+    mbr->add_xy((double *)data, (double *)(data + 8));
+    data += 8+8;
+  }
+
+  return 0;
+}
+
+int GLineString::length(double *len) const
+{
+  uint32 n_points;
+  double prev_x, prev_y;
+  const char *data = m_data;
+
+  *len=0;
+  if (no_data(data, 4))
+    return 1;
+  n_points = uint4korr(data);
+  data += 4;
+
+  if (no_data(data, sizeof(double) * 2 * n_points))
+    return 1;
+
+  --n_points;
+  float8get(prev_x, data);
+  data += 8;
+  float8get(prev_y, data);
+  data += 8;
+
+  for (; n_points>0; --n_points)
+  {
+    double x, y;
+    float8get(x, data);
+    data += 8;
+    float8get(y, data);
+    data += 8;
+    *len+=sqrt(pow(prev_x-x,2)+pow(prev_y-y,2));
+    prev_x=x;
+    prev_y=y;
+  }
+  return 0;
+}
+
+int GLineString::is_closed(int *closed) const
+
+{
+  uint32 n_points;
+  double x1, y1, x2, y2;
+
+  const char *data = m_data;
+
+  if (no_data(data, 4))
+    return 1;
+  n_points = uint4korr(data);
+  data += 4;
+  if (no_data(data, (8+8) * n_points))
+    return 1;
+  float8get(x1, data);
+  data += 8;
+  float8get(y1, data);
+  data += 8 + (n_points-2)*POINT_DATA_SIZE;
+  float8get(x2, data);
+  data += 8;
+  float8get(y2, data);
+
+  *closed=(x1==x2)&&(y1==y2);
+
+  return 0;
+}
+
+int GLineString::num_points(uint32 *n_points) const
+{
+  *n_points = uint4korr(m_data);
+  return 0;
+}
+
+int GLineString::start_point(String *result) const
+{
+  const char *data = m_data + 4;
+  if (no_data(data, 8+8))
+    return 1;
+
+  if (result->reserve(1 + 4 + sizeof(double) * 2))
+    return 1;
+
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbPoint);
+  result->q_append((double *)data);
+  result->q_append((double *)(data + 8));
+
+  return 0;
+}
+
+int GLineString::end_point(String *result) const
+{
+  const char *data = m_data;
+  uint32 n_points;
+
+  if (no_data(data, 4))
+    return 1;
+  n_points = uint4korr(data);
+
+  data += 4 + (n_points-1)*POINT_DATA_SIZE;
+
+  if (no_data(data, 8+8))
+    return 1;
+
+  if (result->reserve(1 + 4 + sizeof(double) * 2))
+    return 1;
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbPoint);
+  result->q_append((double *)data);
+  result->q_append((double *)(data + 8));
+
+  return 0;
+}
+
+
+int GLineString::point_n(uint32 num, String *result) const
+{
+  const char *data = m_data;
+  uint32 n_points;
+
+  if (no_data(data, 4))
+    return 1;
+  n_points = uint4korr(data);
+
+  if ((uint32)(num-1) >= n_points) // really means (num > n_points || num < 1)
+    return 1;
+
+  data += 4 + (num - 1)*POINT_DATA_SIZE;
+
+  if (no_data(data, 8+8))
+    return 1;
+  if (result->reserve(1 + 4 + sizeof(double) * 2))
+    return 1;
+
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbPoint);
+  result->q_append((double *)data);
+  result->q_append((double *)(data + 8));
+
+  return 0;
+}
+
+/***************************** Polygon *******************************/
+
+size_t GPolygon::get_data_size() const 
+{
+  uint32 n_linear_rings = 0;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+
+  n_linear_rings = uint4korr(data);
+  data += 4;
+  for (; n_linear_rings>0; --n_linear_rings)
+  {
+    if (no_data(data, 4))
+      return 1;
+    data += 4 + uint4korr(data)*POINT_DATA_SIZE;
+  }
+  return data - m_data;
+}
+
+int GPolygon::init_from_text(GTextReadStream *trs, String *wkb)
+{
+  uint32 n_linear_rings = 0;
+  int lr_pos = wkb->length();
+
+  if (wkb->reserve(4, 512))
+    return 1;
+
+  wkb->q_append((uint32)n_linear_rings);
+
+  for (;;)  
+  {
+    GLineString ls;
+    size_t ls_pos=wkb->length();
+    if (trs->get_next_symbol() != '(')
+    {
+      trs->set_error_msg("'(' expected");
+      return 1;
+    }
+    if (ls.init_from_text(trs, wkb))
+      return 1;
+    if (trs->get_next_symbol() != ')')
+    {
+      trs->set_error_msg("')' expected");
+      return 1;
+    }
+    ls.init_from_wkb(wkb->ptr()+ls_pos, wkb->length()-ls_pos);
+    int closed;
+    ls.is_closed(&closed);
+    if (!closed)
+    {
+      trs->set_error_msg("POLYGON's linear ring isn't closed");
+      return 1;
+    }
+    ++n_linear_rings;
+    if (trs->get_next_toc_type() == GTextReadStream::comma)
+      trs->get_next_symbol();
+    else 
+      break;
+  }
+  wkb->WriteAtPosition(lr_pos, n_linear_rings);
+  return 0;
+}
+
+int GPolygon::get_data_as_text(String *txt) const
+{
+  uint32 n_linear_rings;
+  const char *data = m_data;
+
+  if (no_data(data, 4))
+    return 1;
+
+  n_linear_rings = uint4korr(data);
+  data += 4;
+
+  for (; n_linear_rings>0; --n_linear_rings)
+  {
+    if(no_data(data, 4))
+      return 1;
+    uint32 n_points = uint4korr(data);
+    data += 4;
+    if (no_data(data, (8+8) * n_points))
+      return 1;
+
+    if (txt->reserve(2 + ((MAX_DIGITS_IN_DOUBLE + 1)*2 + 1) * n_points))
+      return 1;
+    txt->qs_append('(');
+    for (; n_points>0; --n_points)
+    {
+      txt->qs_append((double *)data);
+      txt->qs_append(' ');
+      txt->qs_append((double *)(data + 8));
+      txt->qs_append(',');
+
+      data += 8+8;
+    }
+    (*txt)[txt->length()-1] = ')';
+    txt->qs_append(',');
+  }
+  txt->length(txt->length() - 1);
+  return 0;
+}
+
+int GPolygon::get_mbr(MBR *mbr) const
+{
+  uint32 n_linear_rings;
+
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_linear_rings = uint4korr(data);
+  data += 4;
+  for (; n_linear_rings>0; --n_linear_rings)
+  {
+    if (no_data(data, 4))
+      return 1;
+    uint32 n_points = uint4korr(data);
+    data += 4;
+    if (no_data(data, (8+8) * n_points))
+      return 1;
+    for (; n_points>0; --n_points)
+    {
+      mbr->add_xy((double *)data, (double *)(data + 8));
+      data += 8+8;
+    }
+  }
+  return 0;
+}
+
+int GPolygon::area(double *ar) const
+{
+  uint32 n_linear_rings;
+  double result = -1.0;
+
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_linear_rings = uint4korr(data);
+  data += 4;
+  for (; n_linear_rings>0; --n_linear_rings)
+  {
+    double prev_x, prev_y;
+    double lr_area=0;
+    if (no_data(data, 4))
+      return 1;
+    uint32 n_points = uint4korr(data);
+    if (no_data(data, (8+8) * n_points))
+      return 1;
+    float8get(prev_x, data+4);
+    float8get(prev_y, data+(4+8));
+    data += (4+8+8);
+
+    --n_points;
+    for (; n_points>0; --n_points)
+    {
+      double x, y;
+      float8get(x, data);
+      float8get(y, data + 8);
+      lr_area+=(prev_x+x)*(prev_y-y);
+      prev_x=x;
+      prev_y=y;
+      data += (8+8);
+    }
+    lr_area=fabs(lr_area)/2;
+    if(result==-1) result=lr_area;
+    else result-=lr_area;
+  }
+  *ar=fabs(result);
+  return 0;
+}
+
+
+int GPolygon::exterior_ring(String *result) const
+{
+  uint32 n_points;
+  const char *data = m_data + 4; // skip n_linerings
+
+  if (no_data(data, 4))
+    return 1;
+  n_points = uint4korr(data);
+  data += 4;
+  if (no_data(data, n_points * POINT_DATA_SIZE))
+    return 1;
+
+  if (result->reserve(1+4+4+ n_points * POINT_DATA_SIZE))
+    return 1;
+
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbLineString);
+  result->q_append(n_points);
+  result->q_append(data, n_points * POINT_DATA_SIZE); 
+
+  return 0;
+}
+
+int GPolygon::num_interior_ring(uint32 *n_int_rings) const
+{
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  *n_int_rings = uint4korr(data);
+  --(*n_int_rings);
+
+  return 0;
+}
+
+int GPolygon::interior_ring_n(uint32 num, String *result) const
+{
+  const char *data = m_data;
+  uint32 n_linear_rings;
+  uint32 n_points;
+
+  if (no_data(data, 4))
+    return 1;
+
+  n_linear_rings = uint4korr(data);
+  data += 4;
+  if ((num >= n_linear_rings) || (num < 1))
+    return -1;
+
+  for (; num > 0; --num)
+  {
+    if (no_data(data, 4))
+      return 1;
+    data += 4 + uint4korr(data) * POINT_DATA_SIZE;
+  }
+  if (no_data(data, 4))
+    return 1;
+  n_points = uint4korr(data);
+  int points_size = n_points * POINT_DATA_SIZE;
+  data += 4;
+  if (no_data(data, points_size))
+    return 1;
+
+  if (result->reserve(1+4+4+ points_size))
+    return 1;
+
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbLineString);
+  result->q_append(n_points);
+  result->q_append(data, points_size); 
+
+  return 0;
+}
+
+int GPolygon::centroid_xy(double *x, double *y) const
+{
+  uint32 n_linear_rings;
+  uint32 i;
+  double res_area, res_cx, res_cy;
+  const char *data = m_data;
+
+  if (no_data(data, 4))
+    return 1;
+  n_linear_rings = uint4korr(data);
+  data += 4;
+
+  for(i = 0; i < n_linear_rings; ++i)
+  {
+    if (no_data(data, 4))
+      return 1;
+    uint32 n_points = uint4korr(data);
+    double prev_x, prev_y;
+    double cur_area = 0;
+    double cur_cx = 0;
+    double cur_cy = 0;
+
+    data += 4;
+    if (no_data(data, (8+8) * n_points))
+      return 1;
+    float8get(prev_x, data);
+    float8get(prev_y, data+8);
+    data += (8+8);
+
+    uint32 n = n_points - 1;
+    for (; n > 0; --n)
+    {
+      double x, y;
+      float8get(x, data);
+      float8get(y, data + 8);
+
+      cur_area += (prev_x + x) * (prev_y - y);
+      cur_cx += x;
+      cur_cy += y;
+      prev_x = x;
+      prev_y = y;
+      data += (8+8);
+    }
+    cur_area = fabs(cur_area) / 2;
+    cur_cx = cur_cx / (n_points - 1);
+    cur_cy = cur_cy / (n_points - 1);
+    if(i)
+    {
+      double d_area = res_area - cur_area;
+      if (d_area <= 0)
+        return 1;
+      res_cx = (res_area * res_cx - cur_area * cur_cx) / d_area;
+      res_cy = (res_area * res_cy - cur_area * cur_cy) / d_area;
+    }
+    else
+    {
+      res_area = cur_area;
+      res_cx = cur_cx;
+      res_cy = cur_cy;
+    }
+  }
+
+  *x = res_cx;
+  *y = res_cy;
+
+  return 0;
+}
+
+int GPolygon::centroid(String *result) const
+{
+  double x, y;
+
+  this->centroid_xy(&x, &y);
+  if (result->reserve(1 + 4 + sizeof(double) * 2))
+    return 1;
+
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbPoint);
+  result->q_append(x);
+  result->q_append(y);
+
+  return 0;
+}
+
+
+/***************************** MultiPoint *******************************/
+
+size_t GMultiPoint::get_data_size() const 
+{
+  return 4 + uint4korr(m_data)*(POINT_DATA_SIZE + WKB_HEADER_SIZE);
+}
+
+int GMultiPoint::init_from_text(GTextReadStream *trs, String *wkb)
+{
+  uint32 n_points = 0;
+  int np_pos = wkb->length();
+  GPoint p;
+
+  if (wkb->reserve(4, 512))
+    return 1;
+  wkb->q_append((uint32)n_points);
+
+  for (;;)
+  {
+    if (wkb->reserve(1+4, 512))
+      return 1;
+    wkb->q_append((char)wkbNDR);
+    wkb->q_append((uint32)wkbPoint);
+    if (p.init_from_text(trs, wkb))
+      return 1;
+    ++n_points;
+    if (trs->get_next_toc_type() == GTextReadStream::comma)
+      trs->get_next_symbol();
+    else 
+      break;
+  }
+  wkb->WriteAtPosition(np_pos, n_points);
+
+  return 0;
+}
+
+int GMultiPoint::get_data_as_text(String *txt) const
+{
+  uint32 n_points;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+
+  n_points = uint4korr(data);
+  data += 4;
+  if (no_data(data, n_points * (8+8+WKB_HEADER_SIZE)))
+    return 1;
+
+  if (txt->reserve(((MAX_DIGITS_IN_DOUBLE + 1)*2 + 1) * n_points))
+    return 1;
+
+  for (; n_points>0; --n_points)
+  {
+    txt->qs_append((double *)(data + WKB_HEADER_SIZE));
+    txt->qs_append(' ');
+    txt->qs_append((double *)(data + (8 + WKB_HEADER_SIZE)));
+    txt->qs_append(',');
+    data += 8+8+WKB_HEADER_SIZE;
+  }
+  txt->length(txt->length()-1);
+  return 0;
+}
+
+int GMultiPoint::get_mbr(MBR *mbr) const
+{
+  uint32 n_points;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_points = uint4korr(data);
+  data += 4;
+  if (no_data(data, n_points * (8+8+WKB_HEADER_SIZE)))
+    return 1;
+  for (; n_points>0; --n_points)
+  {
+    mbr->add_xy((double *)(data + WKB_HEADER_SIZE), 
+                  (double *)(data + 8 + WKB_HEADER_SIZE));
+    data += (8+8+WKB_HEADER_SIZE);
+  }
+  return 0;
+}
+
+/***************************** MultiLineString *******************************/
+
+size_t GMultiLineString::get_data_size() const 
+{
+  uint32 n_line_strings = 0;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_line_strings = uint4korr(data);
+  data += 4;
+
+  for (; n_line_strings>0; --n_line_strings)
+  {
+    if (no_data(data, WKB_HEADER_SIZE + 4))
+      return 1;
+    data += WKB_HEADER_SIZE + 4 + uint4korr(data + WKB_HEADER_SIZE) * POINT_DATA_SIZE;
+  }
+  return data - m_data;
+}
+
+int GMultiLineString::init_from_text(GTextReadStream *trs, String *wkb)
+{
+  uint32 n_line_strings = 0;
+  int ls_pos = wkb->length();
+
+  if (wkb->reserve(4, 512))
+    return 1;
+
+  wkb->q_append((uint32)n_line_strings);
+  
+  for (;;)
+  {
+    GLineString ls;
+
+    if (wkb->reserve(1+4, 512))
+      return 1;
+    wkb->q_append((char)wkbNDR);
+    wkb->q_append((uint32)wkbLineString);
+
+    if (trs->get_next_symbol() != '(')
+    {
+      trs->set_error_msg("'(' expected");
+      return 1;
+    }
+    if (ls.init_from_text(trs, wkb))
+      return 1;
+
+    if (trs->get_next_symbol() != ')')
+    {
+      trs->set_error_msg("')' expected");
+      return 1;
+    }
+    ++n_line_strings;
+    if (trs->get_next_toc_type() == GTextReadStream::comma) 
+      trs->get_next_symbol();
+    else 
+      break;
+  }
+  wkb->WriteAtPosition(ls_pos, n_line_strings);
+
+  return 0;
+}
+
+int GMultiLineString::get_data_as_text(String *txt) const
+{
+  uint32 n_line_strings;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_line_strings = uint4korr(data);
+  data += 4;
+  for (; n_line_strings>0; --n_line_strings)
+  {
+    if (no_data(data, (WKB_HEADER_SIZE + 4)))
+      return 1;
+    uint32 n_points = uint4korr(data + WKB_HEADER_SIZE);
+    data += WKB_HEADER_SIZE + 4;
+    if (no_data(data, n_points * (8+8)))
+      return 1;
+
+    if (txt->reserve(2 + ((MAX_DIGITS_IN_DOUBLE + 1)*2 + 1) * n_points))
+      return 1;
+    txt->qs_append('(');
+    for (; n_points>0; --n_points)
+    {
+      txt->qs_append((double *)data);
+      txt->qs_append(' ');
+      txt->qs_append((double *)(data + 8));
+      txt->qs_append(',');
+      data += 8+8;
+    }
+    (*txt)[txt->length()-1] = ')';
+    txt->qs_append(',');
+  }
+  txt->length(txt->length() - 1);
+  return 0;
+}
+
+int GMultiLineString::get_mbr(MBR *mbr) const
+{
+  uint32 n_line_strings;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_line_strings = uint4korr(data);
+  data += 4;
+
+  for (; n_line_strings>0; --n_line_strings)
+  {
+    if (no_data(data, WKB_HEADER_SIZE + 4))
+      return 1;
+    uint32 n_points = uint4korr(data + WKB_HEADER_SIZE);
+    data += 4+WKB_HEADER_SIZE;
+    if (no_data(data, (8+8)*n_points))
+      return 1;
+
+    for (; n_points>0; --n_points)
+    {
+      mbr->add_xy((double *)data, (double *)(data + 8));
+      data += 8+8;
+    }
+  }
+  return 0;
+}
+
+int GMultiLineString::length(double *len) const
+{
+  uint32 n_line_strings;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_line_strings = uint4korr(data);
+  data += 4;
+  *len=0;
+  for (; n_line_strings>0; --n_line_strings)
+  {
+    double ls_len;
+    GLineString ls;
+    data += WKB_HEADER_SIZE;
+    ls.init_from_wkb(data, m_data_end - data);
+    if (ls.length(&ls_len))
+      return 1;
+    *len+=ls_len;
+    data += ls.get_data_size();
+  }
+  return 0;
+}
+
+int GMultiLineString::is_closed(int *closed) const
+{
+  uint32 n_line_strings;
+  const char *data = m_data;
+  if (no_data(data, 1))
+    return 1;
+  n_line_strings = uint4korr(data);
+  data += 4 + WKB_HEADER_SIZE;
+  for (; n_line_strings>0; --n_line_strings)
+  {
+    GLineString ls;
+    ls.init_from_wkb(data, m_data_end - data);
+    if (ls.is_closed(closed))
+      return 1;
+    if (!*closed)
+      return 0;
+    data += ls.get_data_size() + WKB_HEADER_SIZE;
+  }
+  return 0;
+}
+
+/***************************** MultiPolygon *******************************/
+
+size_t GMultiPolygon::get_data_size() const 
+{
+  uint32 n_polygons;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_polygons = uint4korr(data);
+  data += 4;
+
+  for (; n_polygons>0; --n_polygons)
+  {
+    if (no_data(data, 4 + WKB_HEADER_SIZE))
+      return 1;
+    uint32 n_linear_rings = uint4korr(data + WKB_HEADER_SIZE);
+    data += 4 + WKB_HEADER_SIZE;
+
+    for (; n_linear_rings > 0; --n_linear_rings)
+    {
+      data += 4 + uint4korr(data) * POINT_DATA_SIZE;
+    }
+  }
+  return data - m_data;
+}
+
+int GMultiPolygon::init_from_text(GTextReadStream *trs, String *wkb)
+{
+  uint32 n_polygons = 0;
+  int np_pos = wkb->length();
+  GPolygon p;
+
+  if (wkb->reserve(4, 512))
+    return 1;
+
+  wkb->q_append((uint32)n_polygons);
+
+  for (;;)  
+  {
+    if (wkb->reserve(1+4, 512))
+      return 1;
+    wkb->q_append((char)wkbNDR);
+    wkb->q_append((uint32)wkbPolygon);
+
+    if (trs->get_next_symbol() != '(')
+    {
+      trs->set_error_msg("'(' expected");
+      return 1;
+    }
+    if (p.init_from_text(trs, wkb))
+      return 1;
+    if (trs->get_next_symbol() != ')')
+    {
+      trs->set_error_msg("')' expected");
+      return 1;
+    }
+    ++n_polygons;
+    if (trs->get_next_toc_type() == GTextReadStream::comma)
+      trs->get_next_symbol();
+    else
+      break;
+  }
+  wkb->WriteAtPosition(np_pos, n_polygons);
+  return 0;
+}
+
+int GMultiPolygon::get_data_as_text(String *txt) const
+{
+  uint32 n_polygons;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_polygons = uint4korr(data);
+  data += 4;
+
+  for (; n_polygons>0; --n_polygons)
+  {
+    if (no_data(data, 4 + WKB_HEADER_SIZE))
+      return 1;
+    data += WKB_HEADER_SIZE;
+    uint32 n_linear_rings = uint4korr(data);
+    data += 4;
+
+    if (txt->reserve(1, 512))
+      return 1;
+    txt->q_append('(');
+    for (; n_linear_rings>0; --n_linear_rings)
+    {
+      if (no_data(data, 4))
+        return 1;
+      uint32 n_points = uint4korr(data);
+      data += 4;
+      if (no_data(data, (8+8)*n_points)) return 1;
+
+      if (txt->reserve(2 + ((MAX_DIGITS_IN_DOUBLE + 1)*2 + 1) * n_points, 
+              512)) return 1;
+      txt->qs_append('(');
+      for (; n_points>0; --n_points)
+      {
+        txt->qs_append((double *)data);
+        txt->qs_append(' ');
+        txt->qs_append((double *)(data + 8));
+        txt->qs_append(',');
+        data += 8+8;
+      }
+      (*txt)[txt->length()-1] = ')';
+      txt->qs_append(',');
+    }
+    (*txt)[txt->length()-1] = ')';
+    txt->qs_append(',');
+  }
+  txt->length(txt->length() - 1);
+  return 0;
+}
+
+int GMultiPolygon::get_mbr(MBR *mbr) const
+{
+  uint32 n_polygons;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_polygons = uint4korr(data);
+  data += 4;
+
+  for (; n_polygons>0; --n_polygons)
+  {
+    if (no_data(data, 4+WKB_HEADER_SIZE))
+      return 1;
+    uint32 n_linear_rings = uint4korr(data + WKB_HEADER_SIZE);
+    data += WKB_HEADER_SIZE + 4;
+
+    for (; n_linear_rings>0; --n_linear_rings)
+    {
+      if (no_data(data, 4))
+        return 1;
+      uint32 n_points = uint4korr(data);
+      data += 4;
+      if (no_data(data, (8+8)*n_points))
+        return 1;
+
+      for (; n_points>0; --n_points)
+      {
+        mbr->add_xy((double *)data, (double *)(data + 8));
+        data += 8+8;
+      }
+    }
+  }
+  return 0;
+}
+
+
+int GMultiPolygon::area(double *ar) const
+{
+  uint32 n_polygons;
+  const char *data = m_data;
+  double result = 0;
+  if (no_data(data, 4))
+    return 1;
+  n_polygons = uint4korr(data);
+  data += 4;
+
+  for (; n_polygons>0; --n_polygons)
+  {
+    double p_area;
+
+    GPolygon p;
+    data += WKB_HEADER_SIZE;
+    p.init_from_wkb(data, m_data_end - data);
+    if (p.area(&p_area))
+      return 1;
+    result += p_area;
+    data += p.get_data_size();
+  }
+  *ar = result;
+  return 0;
+}
+
+int GMultiPolygon::centroid(String *result) const
+{
+  uint32 n_polygons;
+  uint i;
+  GPolygon p;
+  double res_area, res_cx, res_cy;
+  double cur_area, cur_cx, cur_cy;
+
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_polygons = uint4korr(data);
+  data += 4;
+
+  for (i = 0; i < n_polygons; ++i)
+  {
+    data += WKB_HEADER_SIZE;
+    p.init_from_wkb(data, m_data_end - data);
+    if (p.area(&cur_area))
+      return 1;
+
+    if (p.centroid_xy(&cur_cx, &cur_cy))
+      return 1;
+
+    if(i)
+    {
+      double sum_area = res_area + cur_area;
+      res_cx = (res_area * res_cx + cur_area * cur_cx) / sum_area;
+      res_cy = (res_area * res_cy + cur_area * cur_cy) / sum_area;
+    }
+    else
+    {
+      res_area = cur_area;
+      res_cx = cur_cx;
+      res_cy = cur_cy;
+    }
+
+    data += p.get_data_size();
+  }
+
+  if (result->reserve(1 + 4 + sizeof(double) * 2))
+    return 1;
+  result->q_append((char)wkbNDR);
+  result->q_append((uint32)wkbPoint);
+  result->q_append(res_cx);
+  result->q_append(res_cy);
+
+  return 0;
+}
+
+/***************************** GeometryCollection *******************************/
+
+size_t GGeometryCollection::get_data_size() const 
+{
+  uint32 n_objects;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_objects = uint4korr(data);
+  data += 4;
+
+  for (; n_objects>0; --n_objects)
+  {
+    if (no_data(data, WKB_HEADER_SIZE))
+      return 1;
+    uint32 wkb_type = uint4korr(data + sizeof(char));
+    data += WKB_HEADER_SIZE;
+
+    Geometry geom;
+
+    if (geom.init(wkb_type))
+      return 0;
+
+    geom.init_from_wkb(data, m_data_end - data);
+    size_t object_size=geom.get_data_size();
+    data += object_size;
+  }
+  return data - m_data;
+}
+
+int GGeometryCollection::init_from_text(GTextReadStream *trs, String *wkb)
+{
+  uint32 n_objects = 0;
+  int no_pos = wkb->length();
+  Geometry g;
+
+  if (wkb->reserve(4, 512))
+    return 1;
+  wkb->q_append((uint32)n_objects);
+
+  for (;;)
+  {
+    if (g.create_from_wkt(trs, wkb))
+      return 1;
+
+    if (g.get_class_info()->m_type_id==wkbGeometryCollection)
+    {
+      trs->set_error_msg("Unexpected GEOMETRYCOLLECTION");
+      return 1;
+    }
+    ++n_objects;
+    if (trs->get_next_toc_type() == GTextReadStream::comma)
+      trs->get_next_symbol();
+    else break;
+  }
+  wkb->WriteAtPosition(no_pos, n_objects);
+
+  return 0;
+}
+
+int GGeometryCollection::get_data_as_text(String *txt) const
+{
+  uint32 n_objects;
+  const char *data = m_data;
+  Geometry geom;
+  if (no_data(data, 4))
+    return 1;
+  n_objects = uint4korr(data);
+  data += 4;
+
+  for (; n_objects>0; --n_objects)
+  {
+    if (no_data(data, WKB_HEADER_SIZE))
+      return 1;
+    uint32 wkb_type = uint4korr(data + sizeof(char));
+    data += WKB_HEADER_SIZE;
+
+    if (geom.init(wkb_type))
+      return 1;
+    geom.init_from_wkb(data, m_data_end - data);
+    if (geom.as_wkt(txt))
+      return 1;
+    data += geom.get_data_size();
+    txt->reserve(1, 512);
+    txt->q_append(',');
+  }
+  txt->length(txt->length() - 1);
+  return 0;
+}
+
+int GGeometryCollection::get_mbr(MBR *mbr) const
+{
+  uint32 n_objects;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_objects = uint4korr(data);
+  data += 4;
+  for (; n_objects>0; --n_objects)
+  {
+    if(no_data(data, WKB_HEADER_SIZE))
+      return 1;
+    uint32 wkb_type = uint4korr(data + sizeof(char));
+    data += WKB_HEADER_SIZE;
+    Geometry geom;
+
+    if (geom.init(wkb_type))
+      return 1;
+    geom.init_from_wkb(data, m_data_end - data);
+    geom.get_mbr(mbr);
+    data += geom.get_data_size();
+  }
+  return 0;
+}
+
+int GGeometryCollection::num_geometries(uint32 *num) const
+{
+  *num = uint4korr(m_data);
+  return 0;
+}
+
+int GGeometryCollection::geometry_n(uint32 num, String *result) const
+{
+  const char *data = m_data;
+  uint32 n_objects;
+  if (no_data(data, 4))
+    return 1;
+  n_objects = uint4korr(data);
+  data += 4;
+
+  if ((num > n_objects) || (num < 1))
+  {
+    return -1;
+  }
+  for (; num > 0; --num)
+  {
+    if (no_data(data, WKB_HEADER_SIZE))
+      return 1;
+    uint32 wkb_type = uint4korr(data + sizeof(char));
+    data += WKB_HEADER_SIZE;
+
+    Geometry geom;
+    if (geom.init(wkb_type))
+      return 1;
+    geom.init_from_wkb(data, m_data_end - data);
+    if (num == 1)
+    {
+      if (result->reserve(1+4+geom.get_data_size()))
+        return 1;
+      result->q_append((char)wkbNDR);
+      result->q_append((uint32)wkb_type);
+      result->q_append(data, geom.get_data_size());
+      break;
+    }
+    else
+    {
+      data += geom.get_data_size();
+    }
+  }
+  return 0;
+}
+
+int GGeometryCollection::dimension(uint32 *dim) const
+{
+  uint32 n_objects;
+  *dim = 0;
+  const char *data = m_data;
+  if (no_data(data, 4))
+    return 1;
+  n_objects = uint4korr(data);
+  data += 4;
+
+  for (; n_objects > 0; --n_objects)
+  {
+    if (no_data(data, WKB_HEADER_SIZE))
+      return 1;
+    uint32 wkb_type = uint4korr(data + sizeof(char));
+    data += WKB_HEADER_SIZE;
+
+    uint32 d;
+
+    Geometry geom;
+    if (geom.init(wkb_type))
+      return 1;
+    geom.init_from_wkb(data, m_data_end - data);
+    if (geom.dimension(&d))
+      return 1;
+
+    if (d > *dim)
+      *dim = d;
+    data += geom.get_data_size();
+  }
+  return 0;
+}
+
+/***************************** /objects *******************************/

sql/spatial.h

+#ifndef _spatial_h
+#define _spatial_h
+
+#include "gstream.h"
+
+const int POINT_DATA_SIZE = 8+8; 
+const int WKB_HEADER_SIZE = 1+4;
+
+struct stPoint2D
+{
+  double x;
+  double y;
+};
+
+struct stLinearRing
+{
+  size_t n_points;
+  stPoint2D points;
+};
+
+/***************************** MBR *******************************/
+
+struct MBR
+{
+  MBR()
+  {
+    xmin=DBL_MAX;
+    ymin=DBL_MAX;
+    xmax=-DBL_MAX;
+    ymax=-DBL_MAX;
+  }
+
+  MBR(const double &_xmin, const double &_ymin, const double &_xmax, const double &_ymax)
+  {
+    xmin=_xmin;
+    ymin=_ymin;
+    xmax=_xmax;
+    ymax=_ymax;
+  }
+
+  MBR(const stPoint2D &min, const stPoint2D &max)
+  {
+    xmin=min.x;
+    ymin=min.y;
+    xmax=max.x;
+    ymax=max.y;
+  }
+  
+  double xmin;
+  double ymin;
+  double xmax;
+  double ymax;
+  
+  void add_xy(double x, double y)
+  { /* Not using "else" for proper one point MBR calculation */
+    if (x<xmin)
+    {
+      xmin=x;
+    }
+    if (x>xmax)
+    {
+      xmax=x;
+    }
+    if (y<ymin)
+    {
+      ymin=y;
+    }
+    if (y>ymax)
+    {
+      ymax=y;
+    }
+  }
+
+  void add_xy(double *px, double *py)
+  { /* Not using "else" for proper one point MBR calculation */
+    double x, y;
+    float8get(x, px);
+    float8get(y, py);
+    if (x<xmin)
+    {
+      xmin=x;
+    }
+    if (x>xmax)
+    {
+      xmax=x;
+    }
+    if (y<ymin)
+    {
+      ymin=y;
+    }
+    if (y>ymax)
+    {
+      ymax=y;
+    }
+  }
+
+  void add_mbr(const MBR *mbr)
+  {
+    if (mbr->xmin<xmin)
+    {
+      xmin=mbr->xmin;
+    }
+    if (mbr->xmax>xmax)
+    {
+      xmax=mbr->xmax;
+    }
+    if (mbr->ymin<ymin)
+    {
+      ymin=mbr->ymin;
+    }
+    if (mbr->ymax>ymax)
+    {
+      ymax=mbr->ymax;
+    }
+  }
+
+  int equals(const MBR *mbr)
+  {
+    return (mbr->xmin==xmin)&&(mbr->ymin==ymin)&&(mbr->xmax==xmax)&&(mbr->ymax==ymax);
+  }
+
+  int disjoint(const MBR *mbr)
+  {
+    return (mbr->xmin>xmax)||(mbr->ymin>ymax)||(mbr->xmax<xmin)||(mbr->ymax<ymin);
+  }
+
+  int intersects(const MBR *mbr)
+  {
+    return !disjoint(mbr);
+  }
+
+  int touches(const MBR *mbr)
+  {
+    return (((mbr->xmin==xmax) || (mbr->xmax==xmin)) && 
+            ((mbr->ymin>=ymin) && (mbr->ymin<=ymax) || 
+                (mbr->ymax>=ymin) && (mbr->ymax<=ymax))) ||
+           (((mbr->ymin==ymax) || (mbr->ymax==ymin)) &&
+            ((mbr->xmin>=xmin) && (mbr->xmin<=xmax) ||
+                  (mbr->xmax>=xmin)&&(mbr->xmax<=xmax)));
+  }
+
+  int within(const MBR *mbr)
+  {
+    return (mbr->xmin<=xmin) && (mbr->ymin<=ymin) &&
+              (mbr->xmax>=xmax) && (mbr->ymax>=ymax);
+  }
+
+  int contains(const MBR *mbr)
+  {
+    return (mbr->xmin>=xmin) && (mbr->ymin>=ymin) &&
+                (mbr->xmax<=xmax) && (mbr->ymax<=ymax);
+  }
+
+  bool inner_point(double x, double y) const
+  {
+    return (xmin<x) && (xmax>x) && (ymin<y) && (ymax>x);
+  }
+
+  int overlaps(const MBR *mbr)
+  {
+    int lb = mbr->inner_point(xmin, ymin);
+    int rb = mbr->inner_point(xmax, ymin);
+    int rt = mbr->inner_point(xmax, ymax);
+    int lt = mbr->inner_point(xmin, ymax);
+
+    int a  = lb+rb+rt+lt;
+    return (a>0) && (a<4) && (!within(mbr));
+  }
+};
+
+
+/***************************** Geometry *******************************/
+
+class Geometry;
+
+typedef int (Geometry::*GF_InitFromText)(GTextReadStream *, String *);
+typedef int (Geometry::*GF_GetDataAsText)(String *) const;
+typedef size_t (Geometry::*GF_GetDataSize)() const;
+typedef int (Geometry::*GF_GetMBR)(MBR *) const;
+
+typedef int (Geometry::*GF_GetD)(double *) const;
+typedef int (Geometry::*GF_GetI)(int *) const;
+typedef int (Geometry::*GF_GetUI)(uint32 *) const;
+typedef int (Geometry::*GF_GetWS)(String *) const;
+typedef int (Geometry::*GF_GetUIWS)(uint32, String *) const;
+
+#define GEOM_METHOD_PRESENT(geom_obj, method)\
+    (geom_obj.m_vmt->method != &Geometry::method)
+
+class Geometry
+{
+public:
+  enum wkbType
+  {
+    wkbPoint = 1,
+    wkbLineString = 2,
+    wkbPolygon = 3,
+    wkbMultiPoint = 4,
+    wkbMultiLineString = 5,
+    wkbMultiPolygon = 6,
+    wkbGeometryCollection = 7
+  };
+  enum wkbByteOrder
+  {
+    wkbXDR = 0,    /* Big Endian */
+    wkbNDR = 1     /* Little Endian */
+  };                                    
+
+
+  class GClassInfo
+  {
+  public:
+    GF_InitFromText init_from_text;
+    GF_GetDataAsText get_data_as_text;
+    GF_GetDataSize get_data_size;
+    GF_GetMBR get_mbr;
+    GF_GetD get_x;
+    GF_GetD get_y;
+    GF_GetD length;
+    GF_GetD area;
+
+    GF_GetI is_closed;
+
+    GF_GetUI num_interior_ring;
+    GF_GetUI num_points;
+    GF_GetUI num_geometries;
+    GF_GetUI dimension;
+
+    GF_GetWS start_point;
+    GF_GetWS end_point;
+    GF_GetWS exterior_ring;
+    GF_GetWS centroid;
+
+    GF_GetUIWS point_n;
+    GF_GetUIWS interior_ring_n;
+    GF_GetUIWS geometry_n;
+
+    int m_type_id;
+    const char *m_name;
+    GClassInfo *m_next_rt;
+  };
+  GClassInfo *m_vmt;
+
+  const GClassInfo *get_class_info() const { return m_vmt; }
+  size_t get_data_size() const { return (this->*m_vmt->get_data_size)(); }
+  
+  int init_from_text(GTextReadStream *trs, String *wkb) 
+      { return (this->*m_vmt->init_from_text)(trs, wkb); }
+
+  int get_data_as_text(String *txt) const
+    { return (this->*m_vmt->get_data_as_text)(txt); }
+
+  int get_mbr(MBR *mbr) const { return (this->*m_vmt->get_mbr)(mbr); }
+  int dimension(uint32 *dim) const
+     { return (this->*m_vmt->dimension)(dim); }
+
+  int get_x(double *x) const { return (this->*m_vmt->get_x)(x); }
+  int get_y(double *y) const { return (this->*m_vmt->get_y)(y); }
+  int length(double *len) const  { return (this->*m_vmt->length)(len); }
+  int area(double *ar) const  { return (this->*m_vmt->area)(ar); }
+
+  int is_closed(int *closed) const  { return (this->*m_vmt->is_closed)(closed); }
+
+  int num_interior_ring(uint32 *n_int_rings) const 
+          { return (this->*m_vmt->num_interior_ring)(n_int_rings); }
+  int num_points(uint32 *n_points) const
+          { return (this->*m_vmt->num_points)(n_points); }
+
+  int num_geometries(uint32 *num) const
+          { return (this->*m_vmt->num_geometries)(num); }
+
+  int start_point(String *point) const
+          { return (this->*m_vmt->start_point)(point); }
+  int end_point(String *point) const
+          { return (this->*m_vmt->end_point)(point); }
+  int exterior_ring(String *ring) const
+          { return (this->*m_vmt->exterior_ring)(ring); }
+  int centroid(String *point) const
+          { return (this->*m_vmt->centroid)(point); }
+
+  int point_n(uint32 num, String *result) const
+          { return (this->*m_vmt->point_n)(num, result); }
+  int interior_ring_n(uint32 num, String *result) const
+          { return (this->*m_vmt->interior_ring_n)(num, result); }
+  int geometry_n(uint32 num, String *result) const
+          { return (this->*m_vmt->geometry_n)(num, result); }
+
+public:
+  int create_from_wkb(const char *data, uint32 data_len);
+  int create_from_wkt(GTextReadStream *trs, String *wkt, int init_stream=1);
+  int init(int type_id)
+  {
+    m_vmt = find_class(type_id);
+    return !m_vmt;
+  }
+  int new_geometry(const char *name, size_t len)
+  {
+    m_vmt = find_class(name, len);
+    return !m_vmt;
+  }
+
+  int as_wkt(String *wkt) const
+  {
+    if(wkt->reserve(strlen(get_class_info()->m_name) + 2, 512))
+      return 1;
+    wkt->qs_append(get_class_info()->m_name);
+    wkt->qs_append('(');
+    if(get_data_as_text(wkt))
+      return 1;
+    wkt->qs_append(')');
+    return 0;
+  }
+
+  void init_from_wkb(const char *data, uint32 data_len)
+  {
+    m_data = data;
+    m_data_end = data + data_len;
+  }
+
+  void shift_wkb_header()
+  {
+    m_data += WKB_HEADER_SIZE;
+  }
+
+  int envelope(String *result) const;
+
+protected:
+  static GClassInfo *find_class(int type_id);
+  static GClassInfo *find_class(const char *name, size_t len);
+
+  bool no_data(const char *cur_data, uint32 data_amount) const
+  {
+    return cur_data + data_amount > m_data_end;
+  }
+
+  const char *m_data;
+  const char *m_data_end;
+};
+
+/***************************** Point *******************************/
+ 
+class GPoint: public Geometry
+{
+public:
+   size_t get_data_size() const;
+   int init_from_text(GTextReadStream *trs, String *wkb);
+   int get_data_as_text(String *txt) const;
+   int get_mbr(MBR *mbr) const;
+  
+  int get_xy(double *x, double *y) const
+  {
+    const char *data = m_data;
+    if(no_data(data, sizeof(double)) * 2) return 1;
+    float8get(*x, data);
+    float8get(*y, data + sizeof(double));
+    return 0;
+  }
+
+  int get_x(double *x) const
+  {
+    if(no_data(m_data, sizeof(double))) return 1;
+    float8get(*x, m_data);
+    return 0;
+  }
+
+  int get_y(double *y) const
+  {
+    const char *data = m_data;
+    if(no_data(data, sizeof(double)) * 2) return 1;
+    float8get(*y, data + sizeof(double));
+    return 0;
+  }
+
+  int dimension(uint32 *dim) const { *dim = 0; return 0; }
+};
+
+/***************************** LineString *******************************/
+
+class GLineString: public Geometry
+{
+public:
+   size_t get_data_size() const;
+   int init_from_text(GTextReadStream *trs, String *wkb);
+   int get_data_as_text(String *txt) const;
+   int get_mbr(MBR *mbr) const;
+  
+  int length(double *len) const;
+  int is_closed(int *closed) const;
+  int num_points(uint32 *n_points) const;
+  int start_point(String *point) const;
+  int end_point(String *point) const;
+  int point_n(uint32 n, String *result) const;
+  int dimension(uint32 *dim) const { *dim = 1; return 0; }
+//  IsRing
+};
+
+/***************************** Polygon *******************************/
+
+class GPolygon: public Geometry
+{
+public:
+   size_t get_data_size() const;
+   int init_from_text(GTextReadStream *trs, String *wkb);
+   int get_data_as_text(String *txt) const;
+   int get_mbr(MBR *mbr) const;
+  
+  int area(double *ar) const;
+  int exterior_ring(String *result) const;
+  int num_interior_ring(uint32 *n_int_rings) const;
+  int interior_ring_n(uint32 num, String *result) const;
+  int centroid_xy(double *x, double *y) const;
+  int centroid(String *result) const;
+  int dimension(uint32 *dim) const { *dim = 2; return 0; }
+//  PointOnSurface
+};
+
+/***************************** MultiPoint *******************************/
+
+class GMultiPoint: public Geometry
+{
+public:
+  size_t get_data_size() const;
+  int init_from_text(GTextReadStream *trs, String *wkb);
+  int get_data_as_text(String *txt) const;
+  int get_mbr(MBR *mbr) const;
+  int dimension(uint32 *dim) const { *dim = 0; return 0; }
+};
+
+/***************************** MultiLineString *******************************/
+
+class GMultiLineString: public Geometry
+{
+public:
+   size_t get_data_size() const;
+   int init_from_text(GTextReadStream *trs, String *wkb);
+   int get_data_as_text(String *txt) const;
+   int get_mbr(MBR *mbr) const;
+  
+  int length(double *len) const;
+  int is_closed(int *closed) const;
+  int dimension(uint32 *dim) const { *dim = 1; return 0; }
+};
+
+/***************************** MultiPolygon *******************************/
+
+class GMultiPolygon: public Geometry
+{
+public:
+   size_t get_data_size() const;
+   int init_from_text(GTextReadStream *trs, String *wkb);
+   int get_data_as_text(String *txt) const;
+   int get_mbr(MBR *mbr) const;
+
+  int area(double *ar) const;
+  int centroid(String *result) const;
+  int dimension(uint32 *dim) const { *dim = 2; return 0; }
+//  PointOnSurface
+};
+
+/***************************** GeometryCollection *******************************/
+
+class GGeometryCollection: public Geometry
+{
+public:
+   size_t get_data_size() const;
+   int init_from_text(GTextReadStream *trs, String *wkb);
+   int get_data_as_text(String *txt) const;
+   int get_mbr(MBR *mbr) const;
+
+  int num_geometries(uint32 *num) const;
+  int geometry_n(uint32 num, String *result) const;
+
+  int dimension(uint32 *dim) const;
+};
+
+#endif

sql/sql_class.h

@@ -198,13 +198,18 @@ public:
 
 class Key :public Sql_alloc {
 public:
-  enum Keytype { PRIMARY, UNIQUE, MULTIPLE, FULLTEXT };
+  enum Keytype { PRIMARY, UNIQUE, MULTIPLE, FULLTEXT, SPATIAL };
   enum Keytype type;
+  enum ha_key_alg  alg; // +BAR
   List<key_part_spec> columns;
   const char *Name;
 
   Key(enum Keytype type_par,const char *name_arg,List<key_part_spec> &cols)
     :type(type_par), columns(cols),Name(name_arg) {}
+    
+  Key(enum Keytype type_par, enum ha_key_alg alg_par, const char *name_arg,List<key_part_spec> &cols)
+    :type(type_par),alg(alg_par), columns(cols),Name(name_arg){}  //+BAR
+    
   ~Key() {}
   const char *name() { return Name; }
 };

sql/sql_show.cc

@@ -880,11 +880,17 @@ store_create_info(THD *thd, TABLE *table, String *packet)
       packet->append("UNIQUE ", 7);
     else if (key_info->flags & HA_FULLTEXT)
       packet->append("FULLTEXT ", 9);
+    else if (key_info->flags & HA_SPATIAL)
+      packet->append("SPATIAL ", 8);
     packet->append("KEY ", 4);
 
     if (!found_primary)
      append_identifier(thd,packet,key_info->name);
 
+    // +BAR: send USING only in non-default case: non-spatial rtree
+    if((key_info->key_alg == HA_KEY_ALG_RTREE) && !(key_info->flags & HA_SPATIAL))
+          packet->append(" USING RTREE",12);
+
     packet->append(" (", 2);
 
     for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)

sql/sql_string.cc

@@ -459,6 +459,44 @@ bool String::replace(uint32 offset,uint32 arg_length,const String &to)
   return FALSE;
 }
 
+// added by Holyfoot for "geometry" needs
+int String::reserve(uint32 space_needed, uint32 grow_by)
+{
+  if (Alloced_length < str_length + space_needed)
+  {
+    if (realloc(Alloced_length + max(space_needed, grow_by) - 1))
+      return TRUE;
+  }
+  return FALSE;
+}
+
+void String::qs_append(const char *str)
+{
+  int len = strlen(str);
+  memcpy(Ptr + str_length, str, len + 1);
+  str_length += len;
+}
+
+void String::qs_append(double d)
+{
+  char *buff = Ptr + str_length;
+  sprintf(buff,"%.14g", d);
+  str_length += strlen(buff);
+}
+
+void String::qs_append(double *d)
+{
+  double ld;
+  float8get(ld, d);
+  qs_append(ld);
+}
+
+void String::qs_append(const char &c)
+{
+  Ptr[str_length] = c;
+  str_length += sizeof(c);
+}
+
 
 int sortcmp(const String *x,const String *y)
 {
@@ -805,3 +843,5 @@ int wild_compare(String &match,String &wild, char escape)
   DBUG_RETURN(wild_compare(match.ptr(),match.ptr()+match.length(),
 		      wild.ptr(), wild.ptr()+wild.length(),escape));
 }
+
+

sql/sql_string.h

@@ -188,4 +188,49 @@ public:
   friend int wild_compare(String &match,String &wild,char escape);
   uint32 numchars();
   int charpos(int i,uint32 offset=0);
+
+// added by Holyfoot for "geometry" needs
+  int reserve(uint32 space_needed)
+  {
+    return realloc(str_length + space_needed);
+  }
+  int reserve(uint32 space_needed, uint32 grow_by);
+
+// these append operations do NOT check alloced memory
+// q_*** methods writes values of parameters itself
+// qs_*** methods writes string representation of value
+  void q_append(const char &c)
+  {
+    Ptr[str_length++] = c;
+  }
+  void q_append(const uint32 &n)
+  {
+    int4store(Ptr + str_length, n);
+    str_length += 4;
+  }
+  void q_append(double d)
+  {
+    float8store(Ptr + str_length, d);
+    str_length += 8;
+  }
+  void q_append(double *d)
+  {
+    float8store(Ptr + str_length, *d);
+    str_length += 8;
+  }
+  void q_append(const char *data, uint32 data_len)
+  {
+    memcpy(Ptr + str_length, data, data_len);
+    str_length += data_len;
+  }
+
+  void WriteAtPosition(int position, uint32 value)
+  {
+    int4store(Ptr + position,value);
+  }
+
+  void qs_append(const char *str);
+  void qs_append(double d);
+  void qs_append(double *d);
+  void qs_append(const char &c);
 };

sql/sql_table.cc

@@ -438,8 +438,21 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
     uint key_length=0;
     key_part_spec *column;
 
-    key_info->flags= (key->type == Key::MULTIPLE) ? 0 :
-                     (key->type == Key::FULLTEXT) ? HA_FULLTEXT : HA_NOSAME;
+    switch(key->type){
+      case Key::MULTIPLE:
+        key_info->flags = 0;
+        break;
+      case Key::FULLTEXT:
+        key_info->flags = HA_FULLTEXT;
+        break;
+      case Key::SPATIAL:
+        key_info->flags = HA_SPATIAL;
+        break;
+      default:
+        key_info->flags = HA_NOSAME;
+    }
+
+    key_info->key_alg = key->alg;
     key_info->key_parts=(uint8) key->columns.elements;
     key_info->key_part=key_part_info;
     key_info->usable_key_parts= key_number;
@@ -452,6 +465,30 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
         DBUG_RETURN(-1);
       }
     }
+    /*
+       Make SPATIAL to be RTREE by default
+       SPATIAL only on BLOB or at least BINARY, this
+       actually should be replaced by special GEOM type 
+       in near future when new frm file is ready
+       checking for proper key parts number:
+    */
+    
+    if(key_info->flags == HA_SPATIAL){
+      if(key_info->key_parts!=1){
+        my_printf_error(ER_WRONG_ARGUMENTS,
+                        ER(ER_WRONG_ARGUMENTS),MYF(0),"SPATIAL INDEX");
+        DBUG_RETURN(-1);
+      }
+    }else
+    {
+      if(key_info->key_alg == HA_KEY_ALG_RTREE){
+        if((key_info->key_parts&1)==1){
+          my_printf_error(ER_WRONG_ARGUMENTS,
+                          ER(ER_WRONG_ARGUMENTS),MYF(0),"RTREE INDEX");
+          DBUG_RETURN(-1);
+        }
+      }
+    }
     
     List_iterator<key_part_spec> cols(key->columns);
     for (uint column_nr=0 ; (column=cols++) ; column_nr++)
@@ -480,6 +517,14 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
 	{
           if (key->type == Key::FULLTEXT)
             column->length=1; /* ft-code ignores it anyway :-) */
+          else if (key->type == Key::SPATIAL)
+          {
+            /* 
+               BAR: 4 is: (Xmin,Xmax,Ymin,Ymax), this is for 2D case
+               Lately we'll extend this code to support more dimensions 
+            */
+            column->length=4*sizeof(double);
+          }
           else
           {
             my_printf_error(ER_BLOB_KEY_WITHOUT_LENGTH,
@@ -1471,11 +1516,13 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
 					    key_part_length));
     }
     if (key_parts.elements)
-      key_list.push_back(new Key(key_info->flags & HA_NOSAME ?
+      key_list.push_back(new Key(key_info->flags & HA_SPATIAL ? Key::SPATIAL :
+                                 (key_info->flags & HA_NOSAME ?
 				 (!my_strcasecmp(key_name, "PRIMARY") ?
 				  Key::PRIMARY  : Key::UNIQUE) :
                                  (key_info->flags & HA_FULLTEXT ?
-                                 Key::FULLTEXT : Key::MULTIPLE),
+                                 Key::FULLTEXT : Key::MULTIPLE)),
+                                 key_info->key_alg,
 				 key_name,key_parts));
   }
   key_it.rewind();

sql/sql_yacc.yy

@@ -54,6 +54,7 @@ inline Item *or_or_concat(Item* A, Item* B)
   List<Item> *item_list;
   List<String> *string_list;
   Key::Keytype key_type;
+  enum ha_key_alg  key_alg;
   enum db_type db_type;
   enum row_type row_type;
   enum ha_rkey_function ha_rkey_mode;
@@ -154,6 +155,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	BOOL_SYM
 %token	BOOLEAN_SYM
 %token	BOTH
+%token	BTREE_SYM
 %token	BY
 %token	CACHE_SYM
 %token	CASCADE
@@ -200,6 +202,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	GREATEST_SYM
 %token	GROUP
 %token	HAVING
+%token	HASH_SYM
 %token	HEAP_SYM
 %token	HEX_NUM
 %token	HIGH_PRIORITY
@@ -291,10 +294,12 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	ROWS_SYM
 %token	ROW_FORMAT_SYM
 %token	ROW_SYM
+%token	RTREE_SYM
 %token	SET
 %token	SERIALIZABLE_SYM
 %token	SESSION_SYM
 %token	SHUTDOWN
+%token	SPATIAL_SYM
 %token	SQL_CACHE_SYM
 %token	SQL_NO_CACHE_SYM
 %token  SSL_SYM
@@ -344,6 +349,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	ENUM
 %token	FAST_SYM
 %token	FLOAT_SYM
+%token  GEOM_SYM
 %token	INT_SYM
 %token	LIMIT
 %token	LONGBLOB
@@ -401,6 +407,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	FORMAT_SYM
 %token	FOR_SYM
 %token	FROM_UNIXTIME
+%token  GEOMETRYCOLLECTION
 %token	GROUP_UNIQUE_USERS
 %token	HOUR_MINUTE_SYM
 %token	HOUR_SECOND_SYM
@@ -412,6 +419,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	INTERVAL_SYM
 %token	LAST_INSERT_ID
 %token	LEFT
+%token  LINESTRING
 %token	LOCATE
 %token	MAKE_SET_SYM
 %token	MINUTE_SECOND_SYM
@@ -419,8 +427,12 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token  MODE_SYM
 %token	MODIFY_SYM
 %token	MONTH_SYM
+%token  MULTILINESTRING
+%token  MULTIPOINT
+%token  MULTIPOLYGON
 %token	NOW_SYM
 %token	PASSWORD
+%token  POLYGON
 %token	POSITION_SYM
 %token	PROCEDURE
 %token	RAND
@@ -527,6 +539,9 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %type <key_type>
 	key_type opt_unique_or_fulltext
 
+%type <key_alg>
+	key_alg opt_btree_or_rtree
+
 %type <string_list>
 	key_usage_list
 
@@ -713,11 +728,11 @@ create:
 	}
 	create2
 
-	| CREATE opt_unique_or_fulltext INDEX ident ON table_ident
+	| CREATE opt_unique_or_fulltext INDEX ident key_alg ON table_ident
 	  {
 	    LEX *lex=Lex;
 	    lex->sql_command= SQLCOM_CREATE_INDEX;
-	    if (!add_table_to_list($6,NULL,1))
+	    if (!add_table_to_list($7,NULL,1))
 	      YYABORT;
 	    lex->create_list.empty();
 	    lex->key_list.empty();
@@ -727,7 +742,8 @@ create:
 	   '(' key_list ')' 
 	  {
 	    LEX *lex=Lex;
-	    lex->key_list.push_back(new Key($2,$4.str,lex->col_list));
+
+	    lex->key_list.push_back(new Key($2,$5,$4.str,lex->col_list));
 	    lex->col_list.empty();
 	  }
 	| CREATE DATABASE opt_if_not_exists ident
@@ -874,10 +890,10 @@ field_list_item:
 	  {
 	    Lex->col_list.empty();		/* Alloced by sql_alloc */
 	  }
-	| key_type opt_ident '(' key_list ')'
+	| key_type opt_ident key_alg '(' key_list ')'
 	  {
 	    LEX *lex=Lex;
-	    lex->key_list.push_back(new Key($1,$2,lex->col_list));
+	    lex->key_list.push_back(new Key($1,$3,$2,lex->col_list));
 	    lex->col_list.empty();		/* Alloced by sql_alloc */
 	  }
 	| opt_constraint FOREIGN KEY_SYM opt_ident '(' key_list ')' references
@@ -942,6 +958,8 @@ type:
 					  $$=FIELD_TYPE_TINY_BLOB; }
 	| BLOB_SYM			{ Lex->type|=BINARY_FLAG;
 					  $$=FIELD_TYPE_BLOB; }
+	| GEOM_SYM			{ Lex->type|=BINARY_FLAG;
+					  $$=FIELD_TYPE_GEOMETRY; }
 	| MEDIUMBLOB			{ Lex->type|=BINARY_FLAG;
 					  $$=FIELD_TYPE_MEDIUM_BLOB; }
 	| LONGBLOB			{ Lex->type|=BINARY_FLAG;
@@ -1083,6 +1101,8 @@ key_type:
 	| key_or_index			    { $$= Key::MULTIPLE; }
 	| FULLTEXT_SYM			    { $$= Key::FULLTEXT; }
 	| FULLTEXT_SYM key_or_index	    { $$= Key::FULLTEXT; }
+	| SPATIAL_SYM			    { $$= Key::SPATIAL; }
+	| SPATIAL_SYM key_or_index	    { $$= Key::SPATIAL; }
 	| opt_constraint UNIQUE_SYM	    { $$= Key::UNIQUE; }
 	| opt_constraint UNIQUE_SYM key_or_index { $$= Key::UNIQUE; }
 
@@ -1099,6 +1119,16 @@ opt_unique_or_fulltext:
 	/* empty */	{ $$= Key::MULTIPLE; }
 	| UNIQUE_SYM	{ $$= Key::UNIQUE; }
 	| FULLTEXT_SYM	{ $$= Key::FULLTEXT; }
+	| SPATIAL_SYM	{ $$= Key::SPATIAL; }
+
+key_alg:
+	/* empty */		   { $$= HA_KEY_ALG_BTREE; }
+	| USING opt_btree_or_rtree { $$= $2 }
+
+opt_btree_or_rtree:
+	BTREE_SYM	{ $$= HA_KEY_ALG_BTREE; }
+	| RTREE_SYM	{ $$= HA_KEY_ALG_RTREE; }
+	| HASH_SYM	{ $$= HA_KEY_ALG_HASH; }
 
 key_list:
 	key_list ',' key_part order_dir { Lex->col_list.push_back($3); }
@@ -1684,6 +1714,10 @@ simple_expr:
 	  }
 	| FIELD_FUNC '(' expr ',' expr_list ')'
 	  { $$= new Item_func_field($3, *$5); }
+	| GEOMETRYCOLLECTION '(' expr_list ')'
+	  { $$= new Item_func_spatial_collection(* $3, 
+                       Geometry::wkbGeometryCollection, 
+                       Geometry::wkbPoint); }
 	| HOUR_SYM '(' expr ')'
 	  { $$= new Item_func_hour($3); }
 	| IF '(' expr ',' expr ',' expr ')'
@@ -1708,6 +1742,9 @@ simple_expr:
 	  }
 	| LEFT '(' expr ',' expr ')'
 	  { $$= new Item_func_left($3,$5); }
+	| LINESTRING '(' expr_list ')'
+	  { $$= new Item_func_spatial_collection(* $3, 
+               Geometry::wkbLineString, Geometry::wkbPoint); }
 	| LOCATE '(' expr ',' expr ')'
 	  { $$= new Item_func_locate($5,$3); }
 	| LOCATE '(' expr ',' expr ',' expr ')'
@@ -1720,6 +1757,15 @@ simple_expr:
 	  { $$= new Item_func_minute($3); }
 	| MONTH_SYM '(' expr ')'
 	  { $$= new Item_func_month($3); }
+ 	| MULTILINESTRING '(' expr_list ')'
+ 	  { $$= new Item_func_spatial_collection(* $3, 
+                    Geometry::wkbMultiLineString, Geometry::wkbLineString); }
+ 	| MULTIPOINT '(' expr_list ')'
+ 	  { $$= new Item_func_spatial_collection(* $3, 
+                    Geometry::wkbMultiPoint, Geometry::wkbPoint); }
+ 	| MULTIPOLYGON '(' expr_list ')'
+ 	  { $$= new Item_func_spatial_collection(* $3, 
+                       Geometry::wkbMultiPolygon, Geometry::wkbPolygon ); }
 	| NOW_SYM optional_braces
 	  { $$= new Item_func_now(); current_thd->safe_to_cache_query=0;}
 	| NOW_SYM '(' expr ')'
@@ -1728,6 +1774,9 @@ simple_expr:
 	  {
 	    $$= new Item_func_password($3);
 	   }
+ 	| POLYGON '(' expr_list ')'
+ 	  { $$= new Item_func_spatial_collection(* $3, 
+			Geometry::wkbPolygon, Geometry::wkbLineString); }
 	| POSITION_SYM '(' no_in_expr IN_SYM expr ')'
 	  { $$ = new Item_func_locate($5,$3); }
 	| RAND '(' expr ')'

sql/structs.h

@@ -64,6 +64,7 @@ typedef struct st_key_part_info {	/* Info about a key part */
 typedef struct st_key {
   uint	key_length;			/* Tot length of key */
   uint	flags;				/* dupp key and pack flags */
+  enum  ha_key_alg key_alg;		/* +BAR Algorithm BTREE or RTREE */
   uint	key_parts;			/* How many key_parts */
   uint  extra_length;
   uint	usable_key_parts;		/* Should normally be = key_parts */

sql/table.cc

@@ -153,7 +153,9 @@ int openfrm(const char *name, const char *alias, uint db_stat, uint prgflag,
   {
     keyinfo->flags=	 ((uint) strpos[0]) ^ HA_NOSAME;
     keyinfo->key_length= (uint) uint2korr(strpos+1);
-    keyinfo->key_parts=  (uint) strpos[3];  strpos+=4;
+    keyinfo->key_parts=  (uint) strpos[3];
+    strpos+=4;
+
     keyinfo->key_part=	 key_part;
     keyinfo->rec_per_key= rec_per_key;
     for (j=keyinfo->key_parts ; j-- ; key_part++)
@@ -395,6 +397,26 @@ int openfrm(const char *name, const char *alias, uint db_stat, uint prgflag,
 	}
       }
 
+      keyinfo->key_alg=HA_KEY_ALG_BTREE;  // BAR : btree by default
+
+#define BAR_DIRTY_HACK
+#ifdef BAR_DIRTY_HACK
+      // BAR FIXME: Dirty hack while waiting for new .frm format
+      switch(keyinfo->name[0]){
+        case 'R':
+          keyinfo->key_alg=HA_KEY_ALG_RTREE;
+          break;
+        case 'S':
+          keyinfo->key_alg = HA_KEY_ALG_RTREE;
+          keyinfo->flags |= HA_SPATIAL;
+          break;
+        case 'B':
+        default:
+          keyinfo->key_alg=HA_KEY_ALG_BTREE;
+          break;
+      }
+#endif
+
       for (i=0 ; i < keyinfo->key_parts ; key_part++,i++)
       {
 	if (new_field_pack_flag <= 1)