Merge mysql.com:/home/gluh/MySQL/Merge/4.1

into  mysql.com:/home/gluh/MySQL/Merge/4.1-opt

.bzrignore

@@ -1068,3 +1068,5 @@ include/check_abi
 include/mysql_h.ic
 mysql-test/r/blackhole.log
 mysql-test/lib/init_db.sql
+libmysql_r/client_settings.h
+libmysqld/ha_blackhole.cc

myisam/mi_dynrec.c

@@ -145,6 +145,29 @@ static int write_dynamic_record(MI_INFO *info, const byte *record,
   DBUG_ENTER("write_dynamic_record");
 
   flag=0;
+
+  /*
+    Check if we have enough room for the new record.
+    First we do simplified check to make usual case faster.
+    Then we do more precise check for the space left.
+    Though it still is not absolutely precise, as
+    we always use MI_MAX_DYN_BLOCK_HEADER while it can be
+    less in the most of the cases.
+  */
+
+  if (unlikely(info->s->base.max_data_file_length -
+               info->state->data_file_length <
+               reclength + MI_MAX_DYN_BLOCK_HEADER))
+  {
+    if (info->s->base.max_data_file_length - info->state->data_file_length +
+        info->state->empty - info->state->del * MI_MAX_DYN_BLOCK_HEADER <
+        reclength + MI_MAX_DYN_BLOCK_HEADER)
+    {
+      my_errno=HA_ERR_RECORD_FILE_FULL;
+      DBUG_RETURN(1);
+    }
+  }
+
   do
   {
     if (_mi_find_writepos(info,reclength,&filepos,&length))
@@ -577,6 +600,51 @@ static int update_dynamic_record(MI_INFO *info, my_off_t filepos, byte *record,
   DBUG_ENTER("update_dynamic_record");
 
   flag=block_info.second_read=0;
+  /*
+     Check if we have enough room for the record.
+     First we do simplified check to make usual case faster.
+     Then we do more precise check for the space left.
+     Though it still is not absolutely precise, as
+     we always use MI_MAX_DYN_BLOCK_HEADER while it can be
+     less in the most of the cases.
+  */
+
+  /*
+    compare with just the reclength as we're going
+    to get some space from the old replaced record
+  */
+  if (unlikely(info->s->base.max_data_file_length -
+        info->state->data_file_length < reclength))
+  {
+    /*
+       let's read the old record's block to find out the length of the
+       old record
+    */
+    if ((error=_mi_get_block_info(&block_info,info->dfile,filepos))
+        & (BLOCK_DELETED | BLOCK_ERROR | BLOCK_SYNC_ERROR | BLOCK_FATAL_ERROR))
+    {
+      DBUG_PRINT("error",("Got wrong block info"));
+      if (!(error & BLOCK_FATAL_ERROR))
+        my_errno=HA_ERR_WRONG_IN_RECORD;
+      goto err;
+    }
+
+    /*
+      if new record isn't longer, we can go on safely
+    */
+    if (block_info.rec_len < reclength)
+    {
+      if (info->s->base.max_data_file_length - info->state->data_file_length +
+          info->state->empty - info->state->del * MI_MAX_DYN_BLOCK_HEADER <
+          reclength - block_info.rec_len + MI_MAX_DYN_BLOCK_HEADER)
+      {
+        my_errno=HA_ERR_RECORD_FILE_FULL;
+        goto err;
+      }
+    }
+    block_info.second_read=0;
+  }
+
   while (reclength > 0)
   {
     if (filepos != info->s->state.dellink)

mysql-test/r/almost_full.result

+drop table if exists t1;
+set global myisam_data_pointer_size=2;
+CREATE TABLE t1 (a int auto_increment primary key not null, b longtext) ENGINE=MyISAM;
+DELETE FROM t1 WHERE a=1 or a=5;
+INSERT INTO t1 SET b=repeat('a',600);
+ERROR HY000: The table 't1' is full
+CHECK TABLE t1 EXTENDED;
+Table	Op	Msg_type	Msg_text
+test.t1	check	warning	Datafile is almost full, 65448 of 65534 used
+test.t1	check	status	OK
+UPDATE t1 SET b=repeat('a', 800) where a=10;
+ERROR HY000: The table 't1' is full
+CHECK TABLE t1 EXTENDED;
+Table	Op	Msg_type	Msg_text
+test.t1	check	warning	Datafile is almost full, 65448 of 65534 used
+test.t1	check	status	OK
+INSERT INTO t1 SET b=repeat('a',400);
+CHECK TABLE t1 EXTENDED;
+Table	Op	Msg_type	Msg_text
+test.t1	check	warning	Datafile is almost full, 65448 of 65534 used
+test.t1	check	status	OK
+DELETE FROM t1 WHERE a=2 or a=6;
+UPDATE t1 SET b=repeat('a', 600) where a=11;
+CHECK TABLE t1 EXTENDED;
+Table	Op	Msg_type	Msg_text
+test.t1	check	warning	Datafile is almost full, 65448 of 65534 used
+test.t1	check	status	OK
+drop table t1;
+set global myisam_data_pointer_size=default;

mysql-test/r/func_str.result

@@ -711,9 +711,9 @@ Warning	1265	Data truncated for column 'format(130,10)' at row 1
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
-  `bin(130)` char(64) NOT NULL default '',
-  `oct(130)` char(64) NOT NULL default '',
-  `conv(130,16,10)` char(64) NOT NULL default '',
+  `bin(130)` char(64) default NULL,
+  `oct(130)` char(64) default NULL,
+  `conv(130,16,10)` char(64) default NULL,
   `hex(130)` char(6) NOT NULL default '',
   `char(130)` char(1) NOT NULL default '',
   `format(130,10)` char(4) NOT NULL default '',
@@ -1075,5 +1075,17 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	0	const row not found
 Warnings:
 Note	1003	select decode(test.t1.f1,'zxcv') AS `enc` from test.t1
+drop table t1;
+create table t1 (a bigint not null)engine=myisam;
+insert into t1 set a = 1024*1024*1024*4;
+delete from t1 order by (inet_ntoa(a)) desc limit 10;
+drop table t1;
+create table t1 (a char(36) not null)engine=myisam;
+insert ignore into t1 set a = ' ';
+insert ignore into t1 set a = ' ';
+select * from t1 order by (oct(a));
+a
+
+
 drop table t1;
 End of 4.1 tests

mysql-test/r/select.result

@@ -2835,4 +2835,12 @@ FFFFFFFFFFFFFFFF	7FFFFFFFFFFFFFFF
 FFFFFFFFFFFFFFFF	7FFFFFFFFFFFFFFF
 8FFFFFFFFFFFFFFF	7FFFFFFFFFFFFFFF
 drop table t1;
+CREATE TABLE t1 (c0 int);
+CREATE TABLE t2 (c0 int);
+INSERT INTO t1 VALUES(@@connect_timeout);
+INSERT INTO t2 VALUES(@@connect_timeout);
+SELECT * FROM t1 JOIN t2 ON t1.c0 = t2.c0 WHERE (t1.c0 <=> @@connect_timeout);
+c0	c0
+X	X
+DROP TABLE t1, t2;
 End of 4.1 tests

mysql-test/t/almost_full.test

+#
+# Some special cases with empty tables
+#
+
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+set global myisam_data_pointer_size=2;
+CREATE TABLE t1 (a int auto_increment primary key not null, b longtext) ENGINE=MyISAM;
+
+--disable_query_log
+let $1= 303;
+while ($1)
+{
+  INSERT INTO t1 SET b=repeat('a',200);
+  dec $1;
+}
+--enable_query_log
+
+DELETE FROM t1 WHERE a=1 or a=5;
+
+--error 1114
+INSERT INTO t1 SET b=repeat('a',600);
+CHECK TABLE t1 EXTENDED;
+
+--error 1114
+UPDATE t1 SET b=repeat('a', 800) where a=10;
+CHECK TABLE t1 EXTENDED;
+
+INSERT INTO t1 SET b=repeat('a',400);
+CHECK TABLE t1 EXTENDED;
+
+DELETE FROM t1 WHERE a=2 or a=6;
+UPDATE t1 SET b=repeat('a', 600) where a=11;
+CHECK TABLE t1 EXTENDED;
+drop table t1;
+
+set global myisam_data_pointer_size=default;
+
+# End of 4.1 tests

mysql-test/t/func_str.test

@@ -721,4 +721,17 @@ explain extended select encode(f1,'zxcv') as 'enc' from t1;
 explain extended select decode(f1,'zxcv') as 'enc' from t1;
 drop table t1;
 
+#
+# Bug #31758 inet_ntoa, oct, crashes server with null + filesort 
+#
+create table t1 (a bigint not null)engine=myisam;
+insert into t1 set a = 1024*1024*1024*4;
+delete from t1 order by (inet_ntoa(a)) desc limit 10;
+drop table t1;
+create table t1 (a char(36) not null)engine=myisam;
+insert ignore into t1 set a = ' ';
+insert ignore into t1 set a = ' ';
+select * from t1 order by (oct(a));
+drop table t1;
+
 --echo End of 4.1 tests

mysql-test/t/select.test

@@ -2353,4 +2353,25 @@ insert into t1 values (0xfffffffffffffffff, 0xfffffffffffffffff),
 select hex(a), hex(b) from t1;
 drop table t1;
 
+#
+# Bug #32103: optimizer crash when join on int and mediumint with variable in 
+#             where clause
+#
+
+CREATE TABLE t1 (c0 int);
+CREATE TABLE t2 (c0 int);
+
+# We need any variable that:
+# 1. has integer type, 
+# 2. can be used with the "@@name" syntax
+# 3. available in every server build
+INSERT INTO t1 VALUES(@@connect_timeout);
+INSERT INTO t2 VALUES(@@connect_timeout);
+
+# We only need to ensure 1 row is returned to validate the results
+--replace_column 1 X 2 X
+SELECT * FROM t1 JOIN t2 ON t1.c0 = t2.c0 WHERE (t1.c0 <=> @@connect_timeout);
+
+DROP TABLE t1, t2;
+
 --echo End of 4.1 tests

sql/item.h

@@ -690,7 +690,7 @@ public:
   double val()
     { DBUG_ASSERT(fixed == 1); return ulonglong2double((ulonglong)value); }
   String *val_str(String*);
-  Item *new_item() { return new Item_uint(name,max_length); }
+  Item *new_item() { return new Item_uint(name, value, max_length); }
   int save_in_field(Field *field, bool no_conversions);
   void print(String *str);
   Item_num *neg ();

sql/item_strfunc.h

@@ -531,6 +531,7 @@ public:
   {
     collation.set(default_charset());
     decimals=0; max_length=64;
+    maybe_null= 1;
   }
 };
 
@@ -623,7 +624,7 @@ public:
     }
   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; }
+  void fix_length_and_dec() { decimals = 0; max_length=3*8+7; maybe_null=1;}
 };
 
 class Item_func_quote :public Item_str_func