Merge gleb.loc:/home/uchum/work/bk/5.0

into  gleb.loc:/home/uchum/work/bk/5.0-opt

mysql-test/r/rpl_timezone.result

@@ -130,3 +130,21 @@ t
 2005-01-01 08:00:00
 drop table t1, t2;
 set global time_zone= @my_time_zone;
+End of 4.1 tests
+CREATE TABLE t1 (a INT, b TIMESTAMP);
+INSERT INTO t1 VALUES (1, NOW());
+SET @@session.time_zone='Japan';
+UPDATE t1 SET b= '1970-01-01 08:59:59' WHERE a= 1;
+Warnings:
+Warning	1264	Out of range value adjusted for column 'b' at row 1
+SELECT * FROM t1 ORDER BY a;
+a	b
+1	0000-00-00 00:00:00
+SET @@session.time_zone='Japan';
+SELECT * FROM t1 ORDER BY a;
+a	b
+1	0000-00-00 00:00:00
+SET @@session.time_zone = default;
+DROP TABLE t1;
+SET @@session.time_zone = default;
+End of 5.0 tests

mysql-test/r/select.result

@@ -3995,4 +3995,14 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	f1	index	inx	inx	10	NULL	7	Using where; Using index
 1	SIMPLE	f2	ref	inx	inx	5	test.f1.b	1	Using where; Using index
 DROP TABLE t1;
+CREATE TABLE t1 (c1 INT, c2 INT);
+INSERT INTO t1 VALUES (1,11), (2,22), (2,22);
+EXPLAIN SELECT c1 FROM t1 WHERE (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT COUNT(c2)))))))))))))))))))))))))))))))) > 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+31	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+32	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+EXPLAIN SELECT c1 FROM t1 WHERE (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT COUNT(c2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) > 0;
+ERROR HY000: Too high level of nesting for select
+DROP TABLE t1;
 End of 5.0 tests

mysql-test/r/type_bit.result

@@ -618,4 +618,28 @@ bit_field	int_field
 
	2
 handler t1 close;
 drop table t1;
+CREATE TABLE t1 (b BIT(2), a VARCHAR(5));
+INSERT INTO t1 (b, a) VALUES (1, "x"), (3, "zz"), (0, "y"), (3, "z");
+SELECT b+0, COUNT(DISTINCT a) FROM t1 GROUP BY b;
+b+0	COUNT(DISTINCT a)
+0	1
+1	1
+3	2
+DROP TABLE t1;
+CREATE TABLE t1 (a CHAR(5), b BIT(2));
+INSERT INTO t1 (b, a) VALUES (1, "x"), (3, "zz"), (0, "y"), (3, "z");
+SELECT b+0, COUNT(DISTINCT a) FROM t1 GROUP BY b;
+b+0	COUNT(DISTINCT a)
+0	1
+1	1
+3	2
+DROP TABLE t1;
+CREATE TABLE t1 (a INT, b BIT(2));
+INSERT INTO t1 (b, a) VALUES (1, 1), (3, 2), (0, 3), (3, 4);
+SELECT b+0, COUNT(DISTINCT a) FROM t1 GROUP BY b;
+b+0	COUNT(DISTINCT a)
+0	1
+1	1
+3	2
+DROP TABLE t1;
 End of 5.0 tests

mysql-test/t/rpl_relayspace.test

@@ -14,6 +14,22 @@ connection slave;
 reset slave;
 start slave io_thread;
 # Give the I/O thread time to block.
+let $run= 1;
+let $counter= 300;
+while ($run)
+{
+  let $io_state= query_get_value("SHOW SLAVE STATUS", Slave_IO_State, 1);
+  if (`SELECT '$io_state' = 'Waiting for the slave SQL thread to free enough relay log space'`){
+    let $run= 0;
+  }
+  sleep 0.1;
+  if (!$counter){
+   --echo "Failed while waiting for slave IO thread block"
+   SHOW SLAVE STATUS;
+   exit;
+  }
+  dec $counter;
+}
 sleep 2;
 # A bug caused the I/O thread to refuse stopping.
 stop slave io_thread;

mysql-test/t/rpl_timezone.test

@@ -126,8 +126,33 @@ connection master;
 drop table t1, t2;
 sync_slave_with_master;
 
-# End of 4.1 tests
-
 # Restore original timezone
 connection master;
 set global time_zone= @my_time_zone;
+
+--echo End of 4.1 tests
+
+#
+# Bug #29536: timestamp inconsistent in replication around 1970
+#
+connection master;
+
+CREATE TABLE t1 (a INT, b TIMESTAMP);
+INSERT INTO t1 VALUES (1, NOW());
+
+SET @@session.time_zone='Japan';
+UPDATE t1 SET b= '1970-01-01 08:59:59' WHERE a= 1;
+SELECT * FROM t1 ORDER BY a;
+
+sync_slave_with_master;
+SET @@session.time_zone='Japan';
+# must procdure the same result as the SELECT on the master
+SELECT * FROM t1 ORDER BY a;
+
+SET @@session.time_zone = default;
+connection master;
+DROP TABLE t1;
+SET @@session.time_zone = default;
+
+
+--echo End of 5.0 tests

mysql-test/t/select.test

@@ -3370,4 +3370,34 @@ EXPLAIN SELECT COUNT(*) FROM t1 f1 INNER JOIN t1 f2
     WHERE 1 AND f1.b NOT IN (100,2232,3343,51111);
 DROP TABLE t1;    
 
+#
+# Bug #27352: Incorrect result of nested selects instead of error reporting
+#
+
+CREATE TABLE t1 (c1 INT, c2 INT);
+INSERT INTO t1 VALUES (1,11), (2,22), (2,22);
+
+let $n= 31;
+let $q= COUNT(c2);
+while ($n)
+{
+  let $q= (SELECT $q);
+  dec $n;
+}
+--disable_warnings
+eval EXPLAIN SELECT c1 FROM t1 WHERE $q > 0;
+--enable_warnings
+
+let $n= 64;
+let $q= COUNT(c2);
+while ($n)
+{
+  let $q= (SELECT $q);
+  dec $n;
+}
+--error ER_TOO_HIGH_LEVEL_OF_NESTING_FOR_SELECT
+eval EXPLAIN SELECT c1 FROM t1 WHERE $q > 0;
+
+DROP TABLE t1;
+
 --echo End of 5.0 tests

mysql-test/t/type_bit.test

@@ -272,4 +272,23 @@ handler t1 read a=(1);
 handler t1 close;
 drop table t1;
 
+#
+# Bug #30219: GROUP BY a column of the BIT type
+#
+
+CREATE TABLE t1 (b BIT(2), a VARCHAR(5));
+INSERT INTO t1 (b, a) VALUES (1, "x"), (3, "zz"), (0, "y"), (3, "z");
+SELECT b+0, COUNT(DISTINCT a) FROM t1 GROUP BY b;
+DROP TABLE t1;
+
+CREATE TABLE t1 (a CHAR(5), b BIT(2));
+INSERT INTO t1 (b, a) VALUES (1, "x"), (3, "zz"), (0, "y"), (3, "z");
+SELECT b+0, COUNT(DISTINCT a) FROM t1 GROUP BY b;
+DROP TABLE t1;
+
+CREATE TABLE t1 (a INT, b BIT(2));
+INSERT INTO t1 (b, a) VALUES (1, 1), (3, 2), (0, 3), (3, 4);
+SELECT b+0, COUNT(DISTINCT a) FROM t1 GROUP BY b;
+DROP TABLE t1;
+
 --echo End of 5.0 tests

sql/field.cc

@@ -4462,6 +4462,7 @@ longlong Field_timestamp::val_int(void)
   MYSQL_TIME time_tmp;
   THD  *thd= table ? table->in_use : current_thd;
 
+  thd->time_zone_used= 1;
 #ifdef WORDS_BIGENDIAN
   if (table && table->s->db_low_byte_first)
     temp=uint4korr(ptr);
@@ -4473,7 +4474,6 @@ longlong Field_timestamp::val_int(void)
     return(0);					/* purecov: inspected */
   
   thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp, (my_time_t)temp);
-  thd->time_zone_used= 1;
   
   return time_tmp.year * LL(10000000000) + time_tmp.month * LL(100000000) +
          time_tmp.day * 1000000L + time_tmp.hour * 10000L +
@@ -4492,6 +4492,7 @@ String *Field_timestamp::val_str(String *val_buffer, String *val_ptr)
   to= (char*) val_buffer->ptr();
   val_buffer->length(field_length);
 
+  thd->time_zone_used= 1;
 #ifdef WORDS_BIGENDIAN
   if (table && table->s->db_low_byte_first)
     temp=uint4korr(ptr);
@@ -4507,7 +4508,6 @@ String *Field_timestamp::val_str(String *val_buffer, String *val_ptr)
   val_buffer->set_charset(&my_charset_bin);	// Safety
   
   thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,(my_time_t)temp);
-  thd->time_zone_used= 1;
 
   temp= time_tmp.year % 100;
   if (temp < YY_PART_YEAR - 1)
@@ -4557,6 +4557,7 @@ bool Field_timestamp::get_date(MYSQL_TIME *ltime, uint fuzzydate)
 {
   long temp;
   THD *thd= table ? table->in_use : current_thd;
+  thd->time_zone_used= 1;
 #ifdef WORDS_BIGENDIAN
   if (table && table->s->db_low_byte_first)
     temp=uint4korr(ptr);
@@ -4572,7 +4573,6 @@ bool Field_timestamp::get_date(MYSQL_TIME *ltime, uint fuzzydate)
   else
   {
     thd->variables.time_zone->gmt_sec_to_TIME(ltime, (my_time_t)temp);
-    thd->time_zone_used= 1;
   }
   return 0;
 }

sql/field.h

@@ -231,9 +231,9 @@ class Field
     if (null_ptr)
       null_ptr=ADD_TO_PTR(null_ptr,ptr_diff,uchar*);
   }
-  inline void get_image(char *buff,uint length, CHARSET_INFO *cs)
+  virtual void get_image(char *buff, uint length, CHARSET_INFO *cs)
     { memcpy(buff,ptr,length); }
-  inline void set_image(char *buff,uint length, CHARSET_INFO *cs)
+  virtual void set_image(char *buff,uint length, CHARSET_INFO *cs)
     { memcpy(ptr,buff,length); }
 
 
@@ -1430,13 +1430,20 @@ class Field_bit :public Field {
   String *val_str(String*, String *);
   my_decimal *val_decimal(my_decimal *);
   int cmp(const char *a, const char *b)
-  { return cmp_binary(a, b); }
+  { 
+    DBUG_ASSERT(ptr == a);
+    return Field_bit::key_cmp((const byte *) b, bytes_in_rec+test(bit_len));
+  }
   int key_cmp(const byte *a, const byte *b)
   { return cmp_binary((char *) a, (char *) b); }
   int key_cmp(const byte *str, uint length);
   int cmp_offset(uint row_offset);
   int cmp_binary_offset(uint row_offset)
   { return cmp_offset(row_offset); }
+  void get_image(char *buff, uint length, CHARSET_INFO *cs)
+  { get_key_image(buff, length, itRAW); }   
+  void set_image(char *buff,uint length, CHARSET_INFO *cs)
+  { Field_bit::store(buff, length, cs); }
   uint get_key_image(char *buff, uint length, imagetype type);
   void set_key_image(char *buff, uint length)
   { Field_bit::store(buff, length, &my_charset_bin); }

sql/mysqld.cc

@@ -4828,7 +4828,8 @@ enum options_mysqld
   OPT_PORT_OPEN_TIMEOUT,
   OPT_MERGE,
   OPT_INNODB_ROLLBACK_ON_TIMEOUT,
-  OPT_SECURE_FILE_PRIV
+  OPT_SECURE_FILE_PRIV,
+  OPT_KEEP_FILES_ON_CREATE
 };
 
 
@@ -5830,6 +5831,11 @@ log and this option does nothing anymore.",
    (gptr*) &max_system_variables.join_buff_size, 0, GET_ULONG,
    REQUIRED_ARG, 128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD,
    IO_SIZE, 0},
+  {"keep_files_on_create", OPT_KEEP_FILES_ON_CREATE,
+   "Don't overwrite stale .MYD and .MYI even if no directory is specified.",
+   (gptr*) &global_system_variables.keep_files_on_create,
+   (gptr*) &max_system_variables.keep_files_on_create,
+   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
   {"key_buffer_size", OPT_KEY_BUFFER_SIZE,
    "The size of the buffer used for index blocks for MyISAM tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford; 64M on a 256M machine that mainly runs MySQL is quite common.",
    (gptr*) &dflt_key_cache_var.param_buff_size,

sql/share/errmsg.txt

@@ -5635,3 +5635,5 @@ ER_NON_INSERTABLE_TABLE
 	eng "The target table %-.100s of the %s is not insertable-into"
 ER_ADMIN_WRONG_MRG_TABLE
 	eng "Table '%-.64s' is differently defined or of non-MyISAM type or doesn't exist"
+ER_TOO_HIGH_LEVEL_OF_NESTING_FOR_SELECT
+	eng "Too high level of nesting for select"

sql/sql_parse.cc

@@ -5892,6 +5892,11 @@ mysql_new_select(LEX *lex, bool move_down)
   select_lex->init_query();
   select_lex->init_select();
   lex->nest_level++;
+  if (lex->nest_level > (int) MAX_SELECT_NESTING)
+  {
+    my_error(ER_TOO_HIGH_LEVEL_OF_NESTING_FOR_SELECT,MYF(0),MAX_SELECT_NESTING);
+    DBUG_RETURN(1);
+  }
   select_lex->nest_level= lex->nest_level;
   /*
     Don't evaluate this subquery during statement prepare even if

sql/sql_table.cc

@@ -256,8 +256,8 @@ int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
       drop_locked_tables(thd, db, table->table_name);
       if (thd->killed)
       {
-        thd->no_warnings_for_error= 0;
-	DBUG_RETURN(-1);
+        error=-1;
+        goto err_with_placeholders;
       }
       alias= (lower_case_table_names == 2) ? table->alias : table->table_name;
       /* remove form file and isam files */
@@ -338,6 +338,7 @@ int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
     }
   }
 
+err_with_placeholders:
   if (!drop_temporary)
     unlock_table_names(thd, tables, (TABLE_LIST*) 0);
   thd->no_warnings_for_error= 0;

sql/time.cc

@@ -228,11 +228,11 @@ my_time_t TIME_to_timestamp(THD *thd, const MYSQL_TIME *t, my_bool *in_dst_time_
   my_time_t timestamp;
 
   *in_dst_time_gap= 0;
+  thd->time_zone_used= 1;
 
   timestamp= thd->variables.time_zone->TIME_to_gmt_sec(t, in_dst_time_gap);
   if (timestamp)
   {
-    thd->time_zone_used= 1;
     return timestamp;
   }
 

sql/unireg.h

@@ -81,6 +81,8 @@
                            RAND_TABLE_BIT)
 #define MAX_FIELDS	4096			/* Limit in the .frm file */
 
+#define MAX_SELECT_NESTING (sizeof(nesting_map)*8-1)
+
 #define MAX_SORT_MEMORY (2048*1024-MALLOC_OVERHEAD)
 #define MIN_SORT_MEMORY (32*1024-MALLOC_OVERHEAD)