Merge dator5.(none):/home/pappa/clean-mysql-5.1

into  dator5.(none):/home/pappa/bug18198


mysql-test/r/partition.result:
  Auto merged
mysql-test/r/partition_range.result:
  Auto merged
mysql-test/t/partition_range.test:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/partition_info.cc:
  Auto merged
sql/sql_partition.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
mysql-test/t/partition.test:
  manual merge
sql/item.h:
  manual merge
sql/item_cmpfunc.h:
  manual merge

mysql-test/r/partition_error.result

 drop table if exists t1;
 create table t1 (a int)
+partition by range (a)
+(partition p0 values less than ((select count(*) from t1)));
+ERROR HY000: This partition function is not allowed
+create table t1 (a int)
+partition by range (a)
+(partition p0 values less than (a);
+ERROR 42S22: Unknown column 'a' in 'partition function'
+create table t1 (a int)
+partition by range (a)
+(partition p0 values less than (1));
+alter table t1 add partition (partition p1 values less than (a));
+ERROR 42S22: Unknown column 'a' in 'partition function'
+alter table t1 add partition 
+(partition p1 values less than ((select count(*) from t1)));
+ERROR HY000: This partition function is not allowed
+drop table t1;
+create table t1 (a int)
 engine = x
 partition by key (a);
 Warnings:

mysql-test/r/partition_pruning.result

@@ -284,13 +284,6 @@ explain partitions select * from t9 where a <= '2004-12-19';
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t9	p0,p1	ALL	NULL	NULL	NULL	NULL	2	Using where
 drop table t5,t6,t7,t8,t9;
-create table t1 (a enum('a','b','c','d') default 'a') 
-partition by hash (ascii(a)) partitions 2;
-insert into t1 values ('a'),('b'),('c');
-explain partitions select * from t1 where a='b';
-id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	p0,p1	ALL	NULL	NULL	NULL	NULL	3	Using where
-drop table t1;
 create table t1 (
 a1 int not null
 )
@@ -683,8 +676,9 @@ f_int1	f_int2
 8	8
 9	9
 drop table t1;
-create table t1 (a char(10)) partition by list(length(a)) (
-partition p1 values in (1),
+create table t1 (a char(10) binary)
+partition by list(length(a))
+(partition p1 values in (1),
 partition p2 values in (2),
 partition p3 values in (3),
 partition p4 values in (4),

mysql-test/r/partition_range.result

@@ -719,3 +719,45 @@ WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	p407,p408,p409,p507,p508,p509	ALL	NULL	NULL	NULL	NULL	18	Using where
 DROP TABLE t1;
+create table t1 (a varchar(20))
+partition by range (crc32(md5(a)))
+(partition p0 values less than (100),
+partition p1 values less than maxvalue);
+insert into t1 values ("12345678901234567890");
+insert into t1 values ("A2345678901234567890");
+insert into t1 values ("B2345678901234567890");
+insert into t1 values ("1234567890123456789");
+insert into t1 values ("1234567890123456");
+select * from t1;
+a
+12345678901234567890
+A2345678901234567890
+B2345678901234567890
+1234567890123456789
+1234567890123456
+explain partitions select * from t1 where a = "12345678901234567890";
+id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	p1	ALL	NULL	NULL	NULL	NULL	5	Using where
+explain partitions select * from t1 where a = "12345678901234567890" OR
+a = "A2345678901234567890" OR
+a = "B2345678901234567890" OR
+a = "C2345678901234567890";
+id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	p1	ALL	NULL	NULL	NULL	NULL	5	Using where
+explain partitions select * from t1 where a = "01234567890123456";
+id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	p1	ALL	NULL	NULL	NULL	NULL	5	Using where
+select * from t1 where a = "01234567890123456";
+a
+select * from t1 where a = "12345678901234567890" OR
+a = "A2345678901234567890" OR
+a = "B2345678901234567890" OR
+a = "C2345678901234567890";
+a
+12345678901234567890
+A2345678901234567890
+B2345678901234567890
+select * from t1 where a = "12345678901234567890";
+a
+12345678901234567890
+drop table t1;

mysql-test/t/partition.test

@@ -13,15 +13,6 @@
 drop table if exists t1;
 --enable_warnings
 
-#
-# Bug#14367: Partitions: crash if utf8 column
-#
-create table t1 (s1 char(2) character set utf8)
-partition by list (case when s1 > 'cz' then 1 else 2 end)
-(partition p1 values in (1),
- partition p2 values in (2));
-drop table t1;
-
 #
 # Bug 15890: Strange number of partitions accepted
 #

mysql-test/t/partition_error.test

@@ -8,6 +8,28 @@
 drop table if exists t1;
 --enable_warnings
 
+#
+# Bug 18198: Partitions: Too flexible functions
+#
+-- error ER_PARTITION_FUNCTION_IS_NOT_ALLOWED
+create table t1 (a int)
+partition by range (a)
+(partition p0 values less than ((select count(*) from t1)));
+-- error 1054
+create table t1 (a int)
+partition by range (a)
+(partition p0 values less than (a);
+
+create table t1 (a int)
+partition by range (a)
+(partition p0 values less than (1));
+-- error 1054
+alter table t1 add partition (partition p1 values less than (a));
+-- error ER_PARTITION_FUNCTION_IS_NOT_ALLOWED
+alter table t1 add partition 
+(partition p1 values less than ((select count(*) from t1)));
+drop table t1;
+
 #
 # Bug 20397: Partitions: Crash when using non-existing engine
 #

mysql-test/t/partition_pruning.test

@@ -238,11 +238,14 @@ explain partitions select * from t9 where a <= '2004-12-19';
 drop table t5,t6,t7,t8,t9;
 
 # Test the case where we can't create partitioning 'index'
-create table t1 (a enum('a','b','c','d') default 'a') 
-  partition by hash (ascii(a)) partitions 2;
-insert into t1 values ('a'),('b'),('c');
-explain partitions select * from t1 where a='b';
-drop table t1;
+#
+# Not supported after bug#18198 is fixed
+#
+#create table t1 (a enum('a','b','c','d') default 'a') 
+#  partition by hash (ascii(a)) partitions 2;
+#insert into t1 values ('a'),('b'),('c');
+#explain partitions select * from t1 where a='b';
+#drop table t1;
 
 #
 # Test cases for bugs found in code review:
@@ -535,8 +538,9 @@ select * from t1 where f_int1 between 5 and 15 order by f_int1;
 drop table t1;
 
 #  part2: bug in pruning code
-create table t1 (a char(10)) partition by list(length(a)) (
-  partition p1 values in (1),
+create table t1 (a char(10) binary)
+partition by list(length(a))
+ (partition p1 values in (1),
   partition p2 values in (2),
   partition p3 values in (3),
   partition p4 values in (4),

mysql-test/t/partition_range.test

@@ -699,3 +699,32 @@ WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
       (a >= '2005-07-01' AND a <= '2005-09-30');
 DROP TABLE t1;
 
+#
+# Bug 18198: Try with a couple of cases using VARCHAR fields in
+#            partition function.
+create table t1 (a varchar(20))
+partition by range (crc32(md5(a)))
+(partition p0 values less than (100),
+ partition p1 values less than maxvalue);
+
+insert into t1 values ("12345678901234567890");
+insert into t1 values ("A2345678901234567890");
+insert into t1 values ("B2345678901234567890");
+insert into t1 values ("1234567890123456789");
+insert into t1 values ("1234567890123456");
+select * from t1;
+explain partitions select * from t1 where a = "12345678901234567890";
+explain partitions select * from t1 where a = "12345678901234567890" OR
+                                          a = "A2345678901234567890" OR
+                                          a = "B2345678901234567890" OR
+                                          a = "C2345678901234567890";
+explain partitions select * from t1 where a = "01234567890123456";
+select * from t1 where a = "01234567890123456";
+select * from t1 where a = "12345678901234567890" OR
+                       a = "A2345678901234567890" OR
+                       a = "B2345678901234567890" OR
+                       a = "C2345678901234567890";
+select * from t1 where a = "12345678901234567890";
+
+
+drop table t1;

sql/item.h

@@ -830,7 +830,7 @@ class Item {
     Check if a partition function is allowed
     SYNOPSIS
       check_partition_func_processor()
-      bool_arg                        Return argument
+      int_arg                        Return argument
     RETURN VALUE
       0
     DESCRIPTION
@@ -847,8 +847,7 @@ class Item {
     whether this should be inherited to the new class. If not the function
     below should be defined in the new Item class.
   */
-  virtual bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  virtual bool check_partition_func_processor(byte *bool_arg) { return FALSE; }
   virtual bool subst_argument_checker(byte **arg)
   { 
     if (*arg)
@@ -1146,7 +1145,6 @@ class Item_name_const : public Item
     Item::maybe_null= TRUE;
   }
 
-  bool check_partition_func_processor(byte *bool_arg) { return 0; }
   bool fix_fields(THD *, Item **);
 
   enum Type type() const;
@@ -1192,7 +1190,7 @@ class Item_num: public Item
   Item_num() {}                               /* Remove gcc warning */
   virtual Item_num *neg()= 0;
   Item *safe_charset_converter(CHARSET_INFO *tocs);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 #define NO_CACHED_FIELD_INDEX ((uint)(-1))
@@ -1350,7 +1348,7 @@ class Item_field :public Item_ident
   bool collect_item_field_processor(byte * arg);
   bool find_item_in_field_list_processor(byte *arg);
   bool register_field_in_read_map(byte *arg);
-  bool check_partition_func_processor(byte *bool_arg) { return 0; }
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
   void cleanup();
   bool result_as_longlong()
   {
@@ -1399,7 +1397,7 @@ class Item_null :public Item
   bool is_null() { return 1; }
   void print(String *str) { str->append(STRING_WITH_LEN("NULL")); }
   Item *safe_charset_converter(CHARSET_INFO *tocs);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 class Item_null_result :public Item_null
@@ -1412,8 +1410,8 @@ class Item_null_result :public Item_null
   {
     save_in_field(result_field, no_conversions);
   }
-  bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  bool check_partition_func_processor(byte *int_arg)
+  { *(int *)int_arg= 0; return FALSE; }
 };  
 
 /* Item represents one placeholder ('?') of prepared statement */
@@ -1704,8 +1702,8 @@ class Item_static_float_func :public Item_float
   {}
   void print(String *str) { str->append(func_name); }
   Item *safe_charset_converter(CHARSET_INFO *tocs);
-  bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  bool check_partition_func_processor(byte *int_arg)
+  { *(int *)int_arg= 0; return FALSE; }
 };
 
 
@@ -1783,7 +1781,7 @@ class Item_string :public Item
   void print(String *str);
   // to prevent drop fixed flag (no need parent cleanup call)
   void cleanup() {}
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -1798,8 +1796,8 @@ class Item_static_string_func :public Item_string
   {}
   Item *safe_charset_converter(CHARSET_INFO *tocs);
   void print(String *str) { str->append(func_name); }
-  bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  bool check_partition_func_processor(byte *int_arg)
+  { *(int *)int_arg= 0; return FALSE; }
 };
 
 
@@ -1812,8 +1810,8 @@ class Item_datetime :public Item_string
                                                     &my_charset_bin)
   { max_length=19;}
   enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; }
-  bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  bool check_partition_func_processor(byte *int_arg)
+  { *(int *)int_arg= 0; return FALSE; }
 };
 
 class Item_empty_string :public Item_string
@@ -1836,8 +1834,8 @@ class Item_return_int :public Item_int
     unsigned_flag=1;
   }
   enum_field_types field_type() const { return int_field_type; }
-  bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  bool check_partition_func_processor(byte *int_arg)
+  { *(int *)int_arg= 0; return FALSE; }
 };
 
 
@@ -1861,7 +1859,7 @@ class Item_hex_string: public Item
   void cleanup() {}
   bool eq(const Item *item, bool binary_cmp) const;
   virtual Item *safe_charset_converter(CHARSET_INFO *tocs);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -2088,8 +2086,8 @@ class Item_int_with_ref :public Item_int
   }
   Item *new_item();
   virtual Item *real_item() { return ref; }
-  bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  bool check_partition_func_processor(byte *int_arg)
+  { *(int *)int_arg= 0; return FALSE; }
 };
 
 #ifdef MYSQL_SERVER

sql/item_cmpfunc.h

@@ -240,7 +240,7 @@ class Item_bool_rowready_func2 :public Item_bool_func2
   }
   Item *neg_transformer(THD *thd);
   virtual Item *negated_item();
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
   bool subst_argument_checker(byte **arg) { return TRUE; }
 };
 
@@ -252,7 +252,7 @@ class Item_func_not :public Item_bool_func
   enum Functype functype() const { return NOT_FUNC; }
   const char *func_name() const { return "not"; }
   Item *neg_transformer(THD *thd);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 class Item_maxmin_subselect;
@@ -469,7 +469,7 @@ class Item_func_between :public Item_func_opt_neg
   bool is_bool_func() { return 1; }
   CHARSET_INFO *compare_collation() { return cmp_collation.collation; }
   uint decimal_precision() const { return 1; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -481,7 +481,7 @@ class Item_func_strcmp :public Item_bool_func2
   optimize_type select_optimize() const { return OPTIMIZE_NONE; }
   const char *func_name() const { return "strcmp"; }
   void print(String *str) { Item_func::print(str); }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -544,7 +544,7 @@ class Item_func_ifnull :public Item_func_coalesce
   const char *func_name() const { return "ifnull"; }
   Field *tmp_table_field(TABLE *table);
   uint decimal_precision() const;
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -585,7 +585,7 @@ class Item_func_nullif :public Item_bool_func2
   void print(String *str) { Item_func::print(str); }
   table_map not_null_tables() const { return 0; }
   bool is_null();
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -628,7 +628,7 @@ class Item_func_case :public Item_func
   void print(String *str);
   Item *find_item(String *str);
   CHARSET_INFO *compare_collation() { return cmp_collation.collation; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -979,7 +979,7 @@ class Item_func_in :public Item_func_opt_neg
   bool nulls_in_row();
   bool is_bool_func() { return 1; }
   CHARSET_INFO *compare_collation() { return cmp_collation.collation; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 /* Functions used by where clause */
@@ -1021,7 +1021,7 @@ class Item_func_isnull :public Item_bool_func
   optimize_type select_optimize() const { return OPTIMIZE_NULL; }
   Item *neg_transformer(THD *thd);
   CHARSET_INFO *compare_collation() { return args[0]->collation.collation; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 /* Functions used by HAVING for rewriting IN subquery */
@@ -1043,8 +1043,8 @@ class Item_is_not_null_test :public Item_func_isnull
   */
   table_map used_tables() const
     { return used_tables_cache | RAND_TABLE_BIT; }
-  bool check_partition_func_processor(byte *bool_arg)
-  { *(bool *)bool_arg= FALSE; return 0; }
+  bool check_partition_func_processor(byte *int_arg)
+  { *(int *)int_arg= 0; return FALSE; }
 };
 
 
@@ -1067,7 +1067,7 @@ class Item_func_isnotnull :public Item_bool_func
   void print(String *str);
   CHARSET_INFO *compare_collation() { return args[0]->collation.collation; }
   void top_level_item() { abort_on_null=1; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -1106,7 +1106,7 @@ class Item_func_like :public Item_bool_func2
   const char *func_name() const { return "like"; }
   bool fix_fields(THD *thd, Item **ref);
   void cleanup();
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 #ifdef USE_REGEX
@@ -1129,7 +1129,7 @@ class Item_func_regex :public Item_bool_func
   const char *func_name() const { return "regexp"; }
   void print(String *str) { print_op(str); }
   CHARSET_INFO *compare_collation() { return cmp_collation.collation; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 #else
@@ -1186,7 +1186,7 @@ class Item_cond :public Item_bool_func
   Item *transform(Item_transformer transformer, byte *arg);
   void traverse_cond(Cond_traverser, void *arg, traverse_order order);
   void neg_arguments(THD *thd);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
   bool subst_argument_checker(byte **arg) { return TRUE; }
   Item *compile(Item_analyzer analyzer, byte **arg_p,
                 Item_transformer transformer, byte *arg_t);

sql/item_strfunc.h

@@ -50,7 +50,7 @@ class Item_func_md5 :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "md5"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -64,7 +64,6 @@ class Item_func_sha :public Item_str_func
   String *val_str(String *);    
   void fix_length_and_dec();      
   const char *func_name() const { return "sha"; }	
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 class Item_func_aes_encrypt :public Item_str_func
@@ -95,7 +94,7 @@ class Item_func_concat :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "concat"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 class Item_func_concat_ws :public Item_str_func
@@ -117,7 +116,7 @@ class Item_func_reverse :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "reverse"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -155,7 +154,7 @@ class Item_str_conv :public Item_str_func
 public:
   Item_str_conv(Item *item) :Item_str_func(item) {}
   String *val_str(String *);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -219,7 +218,6 @@ class Item_func_substr :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "substr"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 
@@ -231,7 +229,6 @@ class Item_func_substr_index :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "substring_index"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 
@@ -248,7 +245,6 @@ class Item_func_trim :public Item_str_func
   const char *func_name() const { return "trim"; }
   void print(String *str);
   virtual const char *mode_name() const { return "both"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 
@@ -461,7 +457,7 @@ class Item_func_soundex :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "soundex"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -562,7 +558,7 @@ class Item_func_rpad :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "rpad"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -575,7 +571,7 @@ class Item_func_lpad :public Item_str_func
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "lpad"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -590,7 +586,7 @@ class Item_func_conv :public Item_str_func
     collation.set(default_charset());
     max_length= 64;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -607,7 +603,7 @@ class Item_func_hex :public Item_str_func
     decimals=0;
     max_length=args[0]->max_length*2*collation.collation->mbmaxlen;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 class Item_func_unhex :public Item_str_func
@@ -623,7 +619,7 @@ class Item_func_unhex :public Item_str_func
     decimals=0;
     max_length=(1+args[0]->max_length)/2;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -647,7 +643,7 @@ class Item_func_binary :public Item_str_func
   }
   void print(String *str);
   const char *func_name() const { return "cast_as_binary"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 
@@ -687,7 +683,7 @@ class Item_func_inet_ntoa : public Item_str_func
   String* val_str(String* str);
   const char *func_name() const { return "inet_ntoa"; }
   void fix_length_and_dec() { decimals = 0; max_length=3*8+7; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 class Item_func_quote :public Item_str_func
@@ -702,7 +698,7 @@ class Item_func_quote :public Item_str_func
     collation.set(args[0]->collation);
     max_length= args[0]->max_length * 2 + 2;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 class Item_func_conv_charset :public Item_str_func
@@ -746,7 +742,6 @@ class Item_func_conv_charset :public Item_str_func
   void fix_length_and_dec();
   const char *func_name() const { return "convert"; }
   void print(String *str);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 class Item_func_set_collation :public Item_str_func
@@ -779,7 +774,6 @@ class Item_func_charset :public Item_str_func
      maybe_null= 0;
   };
   table_map not_null_tables() const { return 0; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 class Item_func_collation :public Item_str_func
@@ -795,7 +789,6 @@ class Item_func_collation :public Item_str_func
      maybe_null= 0;
   };
   table_map not_null_tables() const { return 0; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 class Item_func_crc32 :public Item_int_func
@@ -806,7 +799,7 @@ class Item_func_crc32 :public Item_int_func
   const char *func_name() const { return "crc32"; }
   void fix_length_and_dec() { max_length=10; }
   longlong val_int();
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 class Item_func_uncompressed_length : public Item_int_func
@@ -817,7 +810,6 @@ class Item_func_uncompressed_length : public Item_int_func
   const char *func_name() const{return "uncompressed_length";}
   void fix_length_and_dec() { max_length=10; }
   longlong val_int();
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 #ifdef HAVE_COMPRESS
@@ -834,7 +826,6 @@ class Item_func_compress: public Item_str_func
   void fix_length_and_dec(){max_length= (args[0]->max_length*120)/100+12;}
   const char *func_name() const{return "compress";}
   String *val_str(String *) ZLIB_DEPENDED_FUNCTION
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 class Item_func_uncompress: public Item_str_func
@@ -845,7 +836,6 @@ class Item_func_uncompress: public Item_str_func
   void fix_length_and_dec(){ maybe_null= 1; max_length= MAX_BLOB_WIDTH; }
   const char *func_name() const{return "uncompress";}
   String *val_str(String *) ZLIB_DEPENDED_FUNCTION
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
 };
 
 #define UUID_LENGTH (8+1+4+1+4+1+4+1+12)

sql/item_timefunc.h

@@ -39,7 +39,7 @@ class Item_func_period_add :public Item_int_func
   { 
     max_length=6*MY_CHARSET_BIN_MB_MAXLEN;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -54,7 +54,7 @@ class Item_func_period_diff :public Item_int_func
     decimals=0;
     max_length=6*MY_CHARSET_BIN_MB_MAXLEN;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -71,7 +71,7 @@ class Item_func_to_days :public Item_int_func
     maybe_null=1; 
   }
   enum_monotonicity_info get_monotonicity_info() const;
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -87,7 +87,7 @@ class Item_func_dayofmonth :public Item_int_func
     max_length=2*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1; 
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -112,7 +112,7 @@ class Item_func_month :public Item_func
     max_length=2*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1; 
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -145,7 +145,7 @@ class Item_func_dayofyear :public Item_int_func
     max_length=3*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1; 
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -161,7 +161,7 @@ class Item_func_hour :public Item_int_func
     max_length=2*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -177,7 +177,7 @@ class Item_func_minute :public Item_int_func
     max_length=2*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -193,7 +193,7 @@ class Item_func_quarter :public Item_int_func
      max_length=1*MY_CHARSET_BIN_MB_MAXLEN;
      maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -209,7 +209,7 @@ class Item_func_second :public Item_int_func
     max_length=2*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -225,7 +225,7 @@ class Item_func_week :public Item_int_func
     max_length=2*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 class Item_func_yearweek :public Item_int_func
@@ -240,7 +240,7 @@ class Item_func_yearweek :public Item_int_func
     max_length=6*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -257,7 +257,7 @@ class Item_func_year :public Item_int_func
     max_length=4*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -287,7 +287,7 @@ class Item_func_weekday :public Item_func
     max_length=1*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 class Item_func_dayname :public Item_func_weekday
@@ -320,7 +320,7 @@ class Item_func_unix_timestamp :public Item_int_func
     decimals=0;
     max_length=10*MY_CHARSET_BIN_MB_MAXLEN;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -335,7 +335,7 @@ class Item_func_time_to_sec :public Item_int_func
     decimals=0;
     max_length=10*MY_CHARSET_BIN_MB_MAXLEN;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -545,7 +545,7 @@ class Item_func_from_days :public Item_date
   Item_func_from_days(Item *a) :Item_date(a) {}
   const char *func_name() const { return "from_days"; }
   bool get_date(TIME *res, uint fuzzy_date);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -563,7 +563,7 @@ class Item_func_date_format :public Item_str_func
   void fix_length_and_dec();
   uint format_length(const String *format);
   bool eq(const Item *item, bool binary_cmp) const;
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -582,7 +582,7 @@ class Item_func_from_unixtime :public Item_date_func
   const char *func_name() const { return "from_unixtime"; }
   void fix_length_and_dec();
   bool get_date(TIME *res, uint fuzzy_date);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -651,7 +651,7 @@ class Item_func_sec_to_time :public Item_str_func
     return tmp_table_field_from_field_type(table, 0);
   }
   bool result_as_longlong() { return TRUE; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -674,7 +674,7 @@ class Item_date_add_interval :public Item_date_func
   bool get_date(TIME *res, uint fuzzy_date);
   bool eq(const Item *item, bool binary_cmp) const;
   void print(String *str);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -692,7 +692,7 @@ class Item_extract :public Item_int_func
   void fix_length_and_dec();
   bool eq(const Item *item, bool binary_cmp) const;
   void print(String *str);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -729,7 +729,7 @@ class Item_typecast_maybe_null :public Item_typecast
     max_length=args[0]->max_length;
     maybe_null= 1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -749,7 +749,7 @@ class Item_char_typecast :public Item_typecast
   String *val_str(String *a);
   void fix_length_and_dec();
   void print(String *str);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -829,7 +829,7 @@ class Item_func_makedate :public Item_str_func
   }
   bool result_as_longlong() { return TRUE; }
   longlong val_int();
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -852,7 +852,7 @@ class Item_func_add_time :public Item_str_func
   }
   void print(String *str);
   const char *func_name() const { return "add_time"; }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 class Item_func_timediff :public Item_str_func
@@ -892,7 +892,7 @@ class Item_func_maketime :public Item_str_func
   {
     return tmp_table_field_from_field_type(table, 0);
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 class Item_func_microsecond :public Item_int_func
@@ -906,7 +906,7 @@ class Item_func_microsecond :public Item_int_func
     decimals=0;
     maybe_null=1;
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -924,7 +924,7 @@ class Item_func_timestamp_diff :public Item_int_func
     maybe_null=1;
   }
   void print(String *str);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 
@@ -971,7 +971,7 @@ class Item_func_str_to_date :public Item_str_func
   {
     return tmp_table_field_from_field_type(table, 1);
   }
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE;}
 };
 
 

sql/item_xmlfunc.h

@@ -42,7 +42,7 @@ class Item_func_xml_extractvalue: public Item_xml_str_func
   Item_func_xml_extractvalue(Item *a,Item *b) :Item_xml_str_func(a,b) {}
   const char *func_name() const { return "extractvalue"; }
   String *val_str(String *);
-  bool check_partition_func_processor(byte *bool_arg) { return 0;}
+  bool check_partition_func_processor(byte *int_arg) { return FALSE; }
 };
 
 

sql/partition_info.cc

@@ -695,6 +695,7 @@ bool partition_info::check_list_constants()
     file                A reference to a handler of the table
     info                Create info
     engine_type         Return value for used engine in partitions
+    check_partition_function Should we check the partition function
 
   RETURN VALUE
     TRUE                 Error, something went wrong
@@ -709,27 +710,42 @@ bool partition_info::check_list_constants()
 */
 
 bool partition_info::check_partition_info(THD *thd, handlerton **eng_type,
-                                          handler *file, HA_CREATE_INFO *info)
+                                          handler *file, HA_CREATE_INFO *info,
+                                          bool check_partition_function)
 {
   handlerton **engine_array= NULL;
   uint part_count= 0;
   uint i, tot_partitions;
   bool result= TRUE;
   char *same_name;
-  bool part_expression_ok= TRUE;
   DBUG_ENTER("partition_info::check_partition_info");
 
+  if (check_partition_function)
+  {
+    int part_expression_ok= 1;
+    int pf_collation_allowed= 1;
+    int spf_collation_allowed= 1;
+
     if (part_type != HASH_PARTITION || !list_of_part_fields)
+    {
       part_expr->walk(&Item::check_partition_func_processor, 0,
                       (byte*)(&part_expression_ok));
+      pf_collation_allowed= part_expression_ok;
+      part_expression_ok= 1;
       if (is_sub_partitioned() && !list_of_subpart_fields)
+      {
         subpart_expr->walk(&Item::check_partition_func_processor, 0,
                            (byte*)(&part_expression_ok));
-  if (!part_expression_ok)
+      }
+      spf_collation_allowed= part_expression_ok;
+    }
+    if (!pf_collation_allowed ||
+        !spf_collation_allowed)
     {
       my_error(ER_PARTITION_FUNCTION_IS_NOT_ALLOWED, MYF(0));
       goto end;
     }
+  }
   if (unlikely(!is_sub_partitioned() && 
                !(use_default_subpartitions && use_default_no_subpartitions)))
   {

sql/partition_info.h

@@ -61,6 +61,16 @@ class partition_info : public Sql_alloc
   */
   get_subpart_id_func get_subpartition_id;
 
+  /*
+    When we have various string fields we might need some preparation
+    before and clean-up after calling the get_part_id_func's. We need
+    one such method for get_partition_id and one for
+    get_part_partition_id and one for get_subpartition_id.
+  */
+  get_part_id_func get_partition_id_charset;
+  get_part_id_func get_part_partition_id_charset;
+  get_subpart_id_func get_subpartition_id_charset;
+
   /* NULL-terminated array of fields used in partitioned expression */
   Field **part_field_array;
   /* NULL-terminated array of fields used in subpartitioned expression */
@@ -72,6 +82,16 @@ class partition_info : public Sql_alloc
   */
   Field **full_part_field_array;
 
+  /*
+    When we have a field that requires transformation before calling the
+    partition functions we must allocate field buffers for the field of
+    the fields in the partition function.
+  */
+  char **part_field_buffers;
+  char **subpart_field_buffers;
+  char **restore_part_field_ptrs;
+  char **restore_subpart_field_ptrs;
+
   Item *part_expr;
   Item *subpart_expr;
 
@@ -188,6 +208,8 @@ class partition_info : public Sql_alloc
   bool is_auto_partitioned;
   bool from_openfrm;
   bool has_null_value;
+  bool includes_charset_field_part;
+  bool includes_charset_field_subpart;
 
 
   partition_info()
@@ -195,6 +217,8 @@ class partition_info : public Sql_alloc
     get_subpartition_id(NULL),
     part_field_array(NULL), subpart_field_array(NULL),
     full_part_field_array(NULL),
+    part_field_buffers(NULL), subpart_field_buffers(NULL),
+    restore_part_field_ptrs(NULL), restore_subpart_field_ptrs(NULL),
     part_expr(NULL), subpart_expr(NULL), item_free_list(NULL),
     first_log_entry(NULL), exec_log_entry(NULL), frm_log_entry(NULL),
     list_array(NULL),
@@ -217,7 +241,8 @@ class partition_info : public Sql_alloc
     list_of_part_fields(FALSE), list_of_subpart_fields(FALSE),
     linear_hash_ind(FALSE), fixed(FALSE),
     is_auto_partitioned(FALSE), from_openfrm(FALSE),
-    has_null_value(FALSE)
+    has_null_value(FALSE), includes_charset_field_part(FALSE),
+    includes_charset_field_subpart(FALSE)
   {
     all_fields_in_PF.clear_all();
     all_fields_in_PPF.clear_all();
@@ -250,7 +275,8 @@ class partition_info : public Sql_alloc
   bool check_range_constants();
   bool check_list_constants();
   bool check_partition_info(THD *thd, handlerton **eng_type,
-                            handler *file, HA_CREATE_INFO *info);
+                            handler *file, HA_CREATE_INFO *info,
+                            bool check_partition_function);
   void print_no_partition_found(TABLE *table);
 private:
   static int list_part_cmp(const void* a, const void* b);

sql/sql_table.cc

@@ -3303,7 +3303,8 @@ bool mysql_create_table_internal(THD *thd,
     }
     DBUG_PRINT("info", ("db_type = %d",
                          ha_legacy_type(part_info->default_engine_type)));
-    if (part_info->check_partition_info(thd, &engine_type, file, create_info))
+    if (part_info->check_partition_info(thd, &engine_type, file,
+                                        create_info, TRUE))
       goto err;
     part_info->default_engine_type= engine_type;
 

sql/sql_yacc.yy

@@ -3600,6 +3600,7 @@ part_bit_expr:
         {
           Item *part_expr= $1;
           bool not_corr_func;
+          int part_expression_ok= 1;
           LEX *lex= Lex;
           THD *thd= YYTHD;
           longlong item_value;
@@ -3617,13 +3618,19 @@ part_bit_expr:
             mem_alloc_error(sizeof(part_elem_value));
             YYABORT;
           }
-
+          part_expr->walk(&Item::check_partition_func_processor, 0,
+                          (byte*)(&part_expression_ok));
+          if (!part_expression_ok)
+          {
+            my_error(ER_PARTITION_FUNCTION_IS_NOT_ALLOWED, MYF(0));
+            YYABORT;
+          }
           if (part_expr->fix_fields(YYTHD, (Item**)0) ||
               ((context->table_list= save_list), FALSE) ||
               (!part_expr->const_item()) ||
               (!lex->safe_to_cache_query))
           {
-            yyerror(ER(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR));
+            my_error(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR, MYF(0));
             YYABORT;
           }
           thd->where= save_where;