Merge mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.0-main

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.0-engines_with_main

20 files changed, 435 insertions, 71 deletions

diff --git a/include/my_sys.h b/include/my_sys.h
index 4f7e75a836e..7218f91cccd 100644
--- a/include/my_sys.h
+++ b/include/my_sys.h
@@ -879,6 +879,8 @@ extern CHARSET_INFO *get_charset(uint cs_number, myf flags);
 extern CHARSET_INFO *get_charset_by_name(const char *cs_name, myf flags);
 extern CHARSET_INFO *get_charset_by_csname(const char *cs_name,
 					   uint cs_flags, myf my_flags);
+extern CHARSET_INFO *get_compatible_charset_with_ctype(CHARSET_INFO
+                                                       *original_cs);
 extern void free_charsets(void);
 extern char *get_charsets_dir(char *buf);
 extern my_bool my_charset_same(CHARSET_INFO *cs1, CHARSET_INFO *cs2);
diff --git a/myisam/ft_parser.c b/myisam/ft_parser.c
index 6d68542e4e2..1d3a19dd8c6 100644
--- a/myisam/ft_parser.c
+++ b/myisam/ft_parser.c
@@ -188,7 +188,7 @@ byte ft_simple_get_word(CHARSET_INFO *cs, byte **start, const byte *end,
 
   do
   {
-    for (;; doc+= mbl)
+    for (;; doc+= (mbl ? mbl : 1))
     {
       if (doc >= end) DBUG_RETURN(0);
       if (true_word_char(cs, *doc)) break;
diff --git a/myisam/mi_check.c b/myisam/mi_check.c
index ed0a84e737d..ba308f75d24 100644
--- a/myisam/mi_check.c
+++ b/myisam/mi_check.c
@@ -1375,6 +1375,139 @@ int chk_data_link(MI_CHECK *param, MI_INFO *info,int extend)
 } /* chk_data_link */
 
 
+/**
+  @brief Drop all indexes
+
+  @param[in]    param           check parameters
+  @param[in]    info            MI_INFO handle
+  @param[in]    force           if to force drop all indexes
+
+  @return       status
+    @retval     0               OK
+    @retval     != 0            Error
+
+  @note
+    Once allocated, index blocks remain part of the key file forever.
+    When indexes are disabled, no block is freed. When enabling indexes,
+    no block is freed either. The new indexes are create from new
+    blocks. (Bug #4692)
+
+    Before recreating formerly disabled indexes, the unused blocks
+    must be freed. There are two options to do this:
+    - Follow the tree of disabled indexes, add all blocks to the
+      deleted blocks chain. Would require a lot of random I/O.
+    - Drop all blocks by clearing all index root pointers and all
+      delete chain pointers and resetting key_file_length to the end
+      of the index file header. This requires to recreate all indexes,
+      even those that may still be intact.
+    The second method is probably faster in most cases.
+
+    When disabling indexes, MySQL disables either all indexes or all
+    non-unique indexes. When MySQL [re-]enables disabled indexes
+    (T_CREATE_MISSING_KEYS), then we either have "lost" blocks in the
+    index file, or there are no non-unique indexes. In the latter case,
+    mi_repair*() would not be called as there would be no disabled
+    indexes.
+
+    If there would be more unique indexes than disabled (non-unique)
+    indexes, we could do the first method. But this is not implemented
+    yet. By now we drop and recreate all indexes when repair is called.
+
+    However, there is an exception. Sometimes MySQL disables non-unique
+    indexes when the table is empty (e.g. when copying a table in
+    mysql_alter_table()). When enabling the non-unique indexes, they
+    are still empty. So there is no index block that can be lost. This
+    optimization is implemented in this function.
+
+    Note that in normal repair (T_CREATE_MISSING_KEYS not set) we
+    recreate all enabled indexes unconditonally. We do not change the
+    key_map. Otherwise we invert the key map temporarily (outside of
+    this function) and recreate the then "seemingly" enabled indexes.
+    When we cannot use the optimization, and drop all indexes, we
+    pretend that all indexes were disabled. By the inversion, we will
+    then recrate all indexes.
+*/
+
+static int mi_drop_all_indexes(MI_CHECK *param, MI_INFO *info, my_bool force)
+{
+  MYISAM_SHARE *share= info->s;
+  MI_STATE_INFO *state= &share->state;
+  uint i;
+  int error;
+  DBUG_ENTER("mi_drop_all_indexes");
+
+  /*
+    If any of the disabled indexes has a key block assigned, we must
+    drop and recreate all indexes to avoid losing index blocks.
+
+    If we want to recreate disabled indexes only _and_ all of these
+    indexes are empty, we don't need to recreate the existing indexes.
+  */
+  if (!force && (param->testflag & T_CREATE_MISSING_KEYS))
+  {
+    DBUG_PRINT("repair", ("creating missing indexes"));
+    for (i= 0; i < share->base.keys; i++)
+    {
+      DBUG_PRINT("repair", ("index #: %u  key_root: 0x%lx  active: %d",
+                            i, (long) state->key_root[i],
+                            mi_is_key_active(state->key_map, i)));
+      if ((state->key_root[i] != HA_OFFSET_ERROR) &&
+          !mi_is_key_active(state->key_map, i))
+      {
+        /*
+          This index has at least one key block and it is disabled.
+          We would lose its block(s) if would just recreate it.
+          So we need to drop and recreate all indexes.
+        */
+        DBUG_PRINT("repair", ("nonempty and disabled: recreate all"));
+        break;
+      }
+    }
+    if (i >= share->base.keys)
+    {
+      /*
+        All of the disabled indexes are empty. We can just recreate them.
+        Flush dirty blocks of this index file from key cache and remove
+        all blocks of this index file from key cache.
+      */
+      DBUG_PRINT("repair", ("all disabled are empty: create missing"));
+      error= flush_key_blocks(share->key_cache, share->kfile,
+                              FLUSH_FORCE_WRITE);
+      goto end;
+    }
+    /*
+      We do now drop all indexes and declare them disabled. With the
+      T_CREATE_MISSING_KEYS flag, mi_repair*() will recreate all
+      disabled indexes and enable them.
+    */
+    mi_clear_all_keys_active(state->key_map);
+    DBUG_PRINT("repair", ("declared all indexes disabled"));
+  }
+
+  /* Remove all key blocks of this index file from key cache. */
+  if ((error= flush_key_blocks(share->key_cache, share->kfile,
+                               FLUSH_IGNORE_CHANGED)))
+    goto end;
+
+  /* Clear index root block pointers. */
+  for (i= 0; i < share->base.keys; i++)
+    state->key_root[i]= HA_OFFSET_ERROR;
+
+  /* Clear the delete chains. */
+  for (i= 0; i < state->header.max_block_size; i++)
+    state->key_del[i]= HA_OFFSET_ERROR;
+
+  /* Reset index file length to end of index file header. */
+  info->state->key_file_length= share->base.keystart;
+
+  DBUG_PRINT("repair", ("dropped all indexes"));
+  /* error= 0; set by last (error= flush_key_bocks()). */
+
+ end:
+  DBUG_RETURN(error);
+}
+
+
 	/* Recover old table by reading each record and writing all keys */
 	/* Save new datafile-name in temp_filename */
 
@@ -1382,7 +1515,6 @@ int mi_repair(MI_CHECK *param, register MI_INFO *info,
 	      my_string name, int rep_quick)
 {
   int error,got_error;
-  uint i;
   ha_rows start_records,new_header_length;
   my_off_t del;
   File new_file;
@@ -1486,25 +1618,10 @@ int mi_repair(MI_CHECK *param, register MI_INFO *info,
 
   info->update= (short) (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
 
-  /*
-    Clear all keys. Note that all key blocks allocated until now remain
-    "dead" parts of the key file. (Bug #4692)
-  */
-  for (i=0 ; i < info->s->base.keys ; i++)
-    share->state.key_root[i]= HA_OFFSET_ERROR;
-
-  /* Drop the delete chain. */
-  for (i=0 ; i < share->state.header.max_block_size ; i++)
-    share->state.key_del[i]=  HA_OFFSET_ERROR;
-
-  /*
-    If requested, activate (enable) all keys in key_map. In this case,
-    all indexes will be (re-)built.
-  */
+  /* This function always recreates all enabled indexes. */
   if (param->testflag & T_CREATE_MISSING_KEYS)
     mi_set_all_keys_active(share->state.key_map, share->base.keys);
-
-  info->state->key_file_length=share->base.keystart;
+  mi_drop_all_indexes(param, info, TRUE);
 
   lock_memory(param);			/* Everything is alloced */
 
@@ -2105,8 +2222,9 @@ int mi_repair_by_sort(MI_CHECK *param, register MI_INFO *info,
   ulong   *rec_per_key_part;
   char llbuff[22];
   SORT_INFO sort_info;
-  ulonglong key_map=share->state.key_map;
+  ulonglong key_map;
   DBUG_ENTER("mi_repair_by_sort");
+  LINT_INIT(key_map);
 
   start_records=info->state->records;
   got_error=1;
@@ -2179,25 +2297,14 @@ int mi_repair_by_sort(MI_CHECK *param, register MI_INFO *info,
   }
 
   info->update= (short) (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
-  if (!(param->testflag & T_CREATE_MISSING_KEYS))
-  {
-    /*
-      Flush key cache for this file if we are calling this outside
-      myisamchk
-    */
-    flush_key_blocks(share->key_cache,share->kfile, FLUSH_IGNORE_CHANGED);
-    /* Clear the pointers to the given rows */
-    for (i=0 ; i < share->base.keys ; i++)
-      share->state.key_root[i]= HA_OFFSET_ERROR;
-    for (i=0 ; i < share->state.header.max_block_size ; i++)
-      share->state.key_del[i]=  HA_OFFSET_ERROR;
-    info->state->key_file_length=share->base.keystart;
-  }
-  else
+
+  /* Optionally drop indexes and optionally modify the key_map. */
+  mi_drop_all_indexes(param, info, FALSE);
+  key_map= share->state.key_map;
+  if (param->testflag & T_CREATE_MISSING_KEYS)
   {
-    if (flush_key_blocks(share->key_cache,share->kfile, FLUSH_FORCE_WRITE))
-      goto err;
-    key_map= ~key_map;				/* Create the missing keys */
+    /* Invert the copied key_map to recreate all disabled indexes. */
+    key_map= ~key_map;
   }
 
   sort_info.info=info;
@@ -2240,6 +2347,10 @@ int mi_repair_by_sort(MI_CHECK *param, register MI_INFO *info,
     sort_param.read_cache=param->read_cache;
     sort_param.keyinfo=share->keyinfo+sort_param.key;
     sort_param.seg=sort_param.keyinfo->seg;
+    /*
+      Skip this index if it is marked disabled in the copied
+      (and possibly inverted) key_map.
+    */
     if (! mi_is_key_active(key_map, sort_param.key))
     {
       /* Remember old statistics for key */
@@ -2247,6 +2358,8 @@ int mi_repair_by_sort(MI_CHECK *param, register MI_INFO *info,
 	     (char*) (share->state.rec_per_key_part +
 		      (uint) (rec_per_key_part - param->rec_per_key_part)),
 	     sort_param.keyinfo->keysegs*sizeof(*rec_per_key_part));
+      DBUG_PRINT("repair", ("skipping seemingly disabled index #: %u",
+                            sort_param.key));
       continue;
     }
 
@@ -2302,8 +2415,11 @@ int mi_repair_by_sort(MI_CHECK *param, register MI_INFO *info,
     if (param->testflag & T_STATISTICS)
       update_key_parts(sort_param.keyinfo, rec_per_key_part, sort_param.unique,
                        param->stats_method == MI_STATS_METHOD_IGNORE_NULLS?
-                       sort_param.notnull: NULL,(ulonglong) info->state->records);
+                       sort_param.notnull: NULL,
+                       (ulonglong) info->state->records);
+    /* Enable this index in the permanent (not the copied) key_map. */
     mi_set_key_active(share->state.key_map, sort_param.key);
+    DBUG_PRINT("repair", ("set enabled index #: %u", sort_param.key));
 
     if (sort_param.fix_datafile)
     {
@@ -2504,9 +2620,10 @@ int mi_repair_parallel(MI_CHECK *param, register MI_INFO *info,
   IO_CACHE new_data_cache; /* For non-quick repair. */
   IO_CACHE_SHARE io_share;
   SORT_INFO sort_info;
-  ulonglong key_map=share->state.key_map;
+  ulonglong key_map;
   pthread_attr_t thr_attr;
   DBUG_ENTER("mi_repair_parallel");
+  LINT_INIT(key_map);
 
   start_records=info->state->records;
   got_error=1;
@@ -2608,25 +2725,14 @@ int mi_repair_parallel(MI_CHECK *param, register MI_INFO *info,
   }
 
   info->update= (short) (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
-  if (!(param->testflag & T_CREATE_MISSING_KEYS))
-  {
-    /*
-      Flush key cache for this file if we are calling this outside
-      myisamchk
-    */
-    flush_key_blocks(share->key_cache,share->kfile, FLUSH_IGNORE_CHANGED);
-    /* Clear the pointers to the given rows */
-    for (i=0 ; i < share->base.keys ; i++)
-      share->state.key_root[i]= HA_OFFSET_ERROR;
-    for (i=0 ; i < share->state.header.max_block_size ; i++)
-      share->state.key_del[i]=  HA_OFFSET_ERROR;
-    info->state->key_file_length=share->base.keystart;
-  }
-  else
+
+  /* Optionally drop indexes and optionally modify the key_map. */
+  mi_drop_all_indexes(param, info, FALSE);
+  key_map= share->state.key_map;
+  if (param->testflag & T_CREATE_MISSING_KEYS)
   {
-    if (flush_key_blocks(share->key_cache,share->kfile, FLUSH_FORCE_WRITE))
-      goto err;
-    key_map= ~key_map;				/* Create the missing keys */
+    /* Invert the copied key_map to recreate all disabled indexes. */
+    key_map= ~key_map;
   }
 
   sort_info.info=info;
@@ -2682,6 +2788,10 @@ int mi_repair_parallel(MI_CHECK *param, register MI_INFO *info,
     sort_param[i].key=key;
     sort_param[i].keyinfo=share->keyinfo+key;
     sort_param[i].seg=sort_param[i].keyinfo->seg;
+    /*
+      Skip this index if it is marked disabled in the copied
+      (and possibly inverted) key_map.
+    */
     if (! mi_is_key_active(key_map, key))
     {
       /* Remember old statistics for key */
diff --git a/mysql-test/include/gis_keys.inc b/mysql-test/include/gis_keys.inc
index 295e0c48234..c75311f062a 100644
--- a/mysql-test/include/gis_keys.inc
+++ b/mysql-test/include/gis_keys.inc
@@ -13,20 +13,20 @@ CREATE TABLE t2 (p POINT, INDEX(p));
 INSERT INTO t1 VALUES (POINTFROMTEXT('POINT(1 2)'));
 INSERT INTO t2 VALUES (POINTFROMTEXT('POINT(1 2)'));
 
--- no index, returns 1 as expected
+# no index, returns 1 as expected
 SELECT COUNT(*) FROM t1 WHERE p=POINTFROMTEXT('POINT(1 2)');
 
--- with index, returns 1 as expected
--- EXPLAIN shows that the index is not used though
--- due to the "most rows covered anyway, so a scan is more effective" rule
+# with index, returns 1 as expected
+# EXPLAIN shows that the index is not used though
+# due to the "most rows covered anyway, so a scan is more effective" rule
 EXPLAIN 
 SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
 SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
 
--- adding another row to the table so that
--- the "most rows covered" rule doesn't kick in anymore
--- now EXPLAIN shows the index used on the table
--- and we're getting the wrong result again
+# adding another row to the table so that
+# the "most rows covered" rule doesn't kick in anymore
+# now EXPLAIN shows the index used on the table
+# and we're getting the wrong result again
 INSERT INTO t1 VALUES (POINTFROMTEXT('POINT(1 2)'));
 INSERT INTO t2 VALUES (POINTFROMTEXT('POINT(1 2)'));
 EXPLAIN 
diff --git a/mysql-test/r/csv.result b/mysql-test/r/csv.result
index 3900597d2a6..dca4e349c8a 100644
--- a/mysql-test/r/csv.result
+++ b/mysql-test/r/csv.result
@@ -5029,4 +5029,46 @@ F7	÷	DIVISION SIGN
 FE	þ	LATIN SMALL LETTER THORN
 FF	ÿ	LATIN SMALL LETTER Y WITH DIAERESIS
 drop table t1;
+create table t1(a datetime) engine=csv;
+insert into t1 values();
+select * from t1;
+a
+0000-00-00 00:00:00
+drop table t1;
+create table t1(a set('foo','bar')) engine=csv;
+insert into t1 values();
+select * from t1;
+a
+
+drop table t1;
+create table t1(a varchar(32)) engine=csv;
+insert into t1 values();
+select * from t1;
+a
+
+drop table t1;
+create table t1(a int) engine=csv;
+insert into t1 values();
+select * from t1;
+a
+0
+drop table t1;
+create table t1(a blob) engine=csv;
+insert into t1 values();
+select * from t1;
+a
+
+drop table t1;
+create table t1(a bit(1)) engine=csv;
+insert into t1 values();
+select BIN(a) from t1;
+BIN(a)
+0
+drop table t1;
+create table t1(a enum('foo','bar') default 'foo') engine=csv;
+insert into t1 values();
+select * from t1;
+a
+foo
+drop table t1;
 End of 5.0 tests
diff --git a/mysql-test/r/ctype_ucs.result b/mysql-test/r/ctype_ucs.result
index 262055436b8..82f21eb086d 100644
--- a/mysql-test/r/ctype_ucs.result
+++ b/mysql-test/r/ctype_ucs.result
@@ -811,6 +811,12 @@ quote(name)
 ????????
 ????????????????
 drop table bug20536;
+CREATE TABLE t1(a TEXT CHARSET ucs2 COLLATE ucs2_unicode_ci);
+INSERT INTO t1 VALUES('abcd');
+SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abcd' IN BOOLEAN MODE);
+a
+abcd
+DROP TABLE t1;
 End of 4.1 tests
 CREATE TABLE t1 (a varchar(64) character set ucs2, b decimal(10,3));
 INSERT INTO t1 VALUES ("1.1", 0), ("2.1", 0);
diff --git a/mysql-test/r/fulltext.result b/mysql-test/r/fulltext.result
index f6efe2411c0..29fb430bb97 100644
--- a/mysql-test/r/fulltext.result
+++ b/mysql-test/r/fulltext.result
@@ -463,3 +463,9 @@ ALTER TABLE t1 DISABLE KEYS;
 SELECT * FROM t1 WHERE MATCH(a) AGAINST('test');
 ERROR HY000: Can't find FULLTEXT index matching the column list
 DROP TABLE t1;
+CREATE TABLE t1(a TEXT);
+INSERT INTO t1 VALUES(' aaaaa aaaa');
+SELECT * FROM t1 WHERE MATCH(a) AGAINST ('"aaaa"' IN BOOLEAN MODE);
+a
+ aaaaa aaaa
+DROP TABLE t1;
diff --git a/mysql-test/r/myisam.result b/mysql-test/r/myisam.result
index 7fc29cd13ca..176d0e97012 100644
--- a/mysql-test/r/myisam.result
+++ b/mysql-test/r/myisam.result
@@ -1806,4 +1806,29 @@ SELECT a FROM t1 FORCE INDEX (inx) WHERE a=1;
 a
 1
 DROP TABLE t1;
+CREATE TABLE t1 (c1 INT, c2 INT, UNIQUE INDEX (c1), INDEX (c2)) ENGINE=MYISAM;
+SHOW TABLE STATUS LIKE 't1';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
+t1	MyISAM	10	Fixed	0	#	#	#	1024	#	#	#	#	#	#	#		
+INSERT INTO t1 VALUES (1,1);
+SHOW TABLE STATUS LIKE 't1';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
+t1	MyISAM	10	Fixed	1	#	#	#	3072	#	#	#	#	#	#	#		
+ALTER TABLE t1 DISABLE KEYS;
+SHOW TABLE STATUS LIKE 't1';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
+t1	MyISAM	10	Fixed	1	#	#	#	3072	#	#	#	#	#	#	#		
+ALTER TABLE t1 ENABLE KEYS;
+SHOW TABLE STATUS LIKE 't1';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
+t1	MyISAM	10	Fixed	1	#	#	#	3072	#	#	#	#	#	#	#		
+ALTER TABLE t1 DISABLE KEYS;
+SHOW TABLE STATUS LIKE 't1';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
+t1	MyISAM	10	Fixed	1	#	#	#	3072	#	#	#	#	#	#	#		
+ALTER TABLE t1 ENABLE KEYS;
+SHOW TABLE STATUS LIKE 't1';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
+t1	MyISAM	10	Fixed	1	#	#	#	3072	#	#	#	#	#	#	#		
+DROP TABLE t1;
 End of 5.0 tests
diff --git a/mysql-test/r/symlink.result b/mysql-test/r/symlink.result
index 18299bf4298..8978eee89c3 100644
--- a/mysql-test/r/symlink.result
+++ b/mysql-test/r/symlink.result
@@ -99,6 +99,12 @@ t1	CREATE TABLE `t1` (
   `b` int(11) default NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 drop table t1;
+CREATE TABLE t1(a INT)
+DATA DIRECTORY='TEST_DIR/var/master-data/mysql'
+INDEX DIRECTORY='TEST_DIR/var/master-data/mysql';
+RENAME TABLE t1 TO user;
+ERROR HY000: Can't create/write to file 'TEST_DIR/var/master-data/mysql/user.MYI' (Errcode: 17)
+DROP TABLE t1;
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
diff --git a/mysql-test/t/csv.test b/mysql-test/t/csv.test
index b724b4ce47c..db5cb92c3e6 100644
--- a/mysql-test/t/csv.test
+++ b/mysql-test/t/csv.test
@@ -1427,4 +1427,37 @@ insert into t1 values (0xFF,'LATIN SMALL LETTER Y WITH DIAERESIS');
 select hex(c), c, name from t1 order by 1;
 drop table t1;
 
+#
+# Bug #31473: does not work with NULL value in datetime field
+# This bug is a 5.1 but is here to prevent 5.0 regression.
+#
+create table t1(a datetime) engine=csv;
+insert into t1 values();
+select * from t1;
+drop table t1;
+create table t1(a set('foo','bar')) engine=csv;
+insert into t1 values();
+select * from t1;
+drop table t1;
+create table t1(a varchar(32)) engine=csv;
+insert into t1 values();
+select * from t1;
+drop table t1;
+create table t1(a int) engine=csv;
+insert into t1 values();
+select * from t1;
+drop table t1;
+create table t1(a blob) engine=csv;
+insert into t1 values();
+select * from t1;
+drop table t1;
+create table t1(a bit(1)) engine=csv;
+insert into t1 values();
+select BIN(a) from t1;
+drop table t1;
+create table t1(a enum('foo','bar') default 'foo') engine=csv;
+insert into t1 values();
+select * from t1;
+drop table t1;
+
 --echo End of 5.0 tests
diff --git a/mysql-test/t/ctype_uca.test b/mysql-test/t/ctype_uca.test
index 17632e7c8fc..695a21adbf5 100644
--- a/mysql-test/t/ctype_uca.test
+++ b/mysql-test/t/ctype_uca.test
@@ -530,7 +530,7 @@ create table t1 (
   a varchar(255),
   key a(a)
 ) character set utf8 collate utf8_czech_ci;
--- In Czech 'ch' is a single letter between 'h' and 'i'
+# In Czech 'ch' is a single letter between 'h' and 'i'
 insert into t1 values
 ('b'),('c'),('d'),('e'),('f'),('g'),('h'),('ch'),('i'),('j');
 select * from t1 where a like 'c%';
diff --git a/mysql-test/t/ctype_ucs.test b/mysql-test/t/ctype_ucs.test
index 5525a5beb6f..7827ff0d31e 100644
--- a/mysql-test/t/ctype_ucs.test
+++ b/mysql-test/t/ctype_ucs.test
@@ -547,6 +547,14 @@ select quote(name) from bug20536;
 
 drop table bug20536;
 
+#
+# BUG#31159 - fulltext search on ucs2 column crashes server
+#
+CREATE TABLE t1(a TEXT CHARSET ucs2 COLLATE ucs2_unicode_ci);
+INSERT INTO t1 VALUES('abcd');
+SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abcd' IN BOOLEAN MODE);
+DROP TABLE t1;
+
 --echo End of 4.1 tests
 
 #
diff --git a/mysql-test/t/fulltext.test b/mysql-test/t/fulltext.test
index 44375562307..e5f1db14b7f 100644
--- a/mysql-test/t/fulltext.test
+++ b/mysql-test/t/fulltext.test
@@ -387,4 +387,12 @@ ALTER TABLE t1 DISABLE KEYS;
 SELECT * FROM t1 WHERE MATCH(a) AGAINST('test');
 DROP TABLE t1;
 
+#
+# BUG#11392 - fulltext search bug
+#
+CREATE TABLE t1(a TEXT);
+INSERT INTO t1 VALUES(' aaaaa aaaa');
+SELECT * FROM t1 WHERE MATCH(a) AGAINST ('"aaaa"' IN BOOLEAN MODE);
+DROP TABLE t1;
+
 # End of 4.1 tests
diff --git a/mysql-test/t/myisam.test b/mysql-test/t/myisam.test
index d5f403616c8..ad223dc2664 100644
--- a/mysql-test/t/myisam.test
+++ b/mysql-test/t/myisam.test
@@ -1161,4 +1161,30 @@ ALTER TABLE t1 ENABLE KEYS;
 SELECT a FROM t1 FORCE INDEX (inx) WHERE a=1;
 DROP TABLE t1;
 
+#
+# Bug#4692 - DISABLE/ENABLE KEYS waste a space
+#
+CREATE TABLE t1 (c1 INT, c2 INT, UNIQUE INDEX (c1), INDEX (c2)) ENGINE=MYISAM;
+--replace_column 6 # 7 # 8 # 10 # 11 # 12 # 13 # 14 # 15 # 16 #
+SHOW TABLE STATUS LIKE 't1';
+INSERT INTO t1 VALUES (1,1);
+--replace_column 6 # 7 # 8 # 10 # 11 # 12 # 13 # 14 # 15 # 16 #
+SHOW TABLE STATUS LIKE 't1';
+ALTER TABLE t1 DISABLE KEYS;
+--replace_column 6 # 7 # 8 # 10 # 11 # 12 # 13 # 14 # 15 # 16 #
+SHOW TABLE STATUS LIKE 't1';
+ALTER TABLE t1 ENABLE KEYS;
+--replace_column 6 # 7 # 8 # 10 # 11 # 12 # 13 # 14 # 15 # 16 #
+SHOW TABLE STATUS LIKE 't1';
+ALTER TABLE t1 DISABLE KEYS;
+--replace_column 6 # 7 # 8 # 10 # 11 # 12 # 13 # 14 # 15 # 16 #
+SHOW TABLE STATUS LIKE 't1';
+ALTER TABLE t1 ENABLE KEYS;
+--replace_column 6 # 7 # 8 # 10 # 11 # 12 # 13 # 14 # 15 # 16 #
+SHOW TABLE STATUS LIKE 't1';
+#--exec ls -log var/master-data/test/t1.MYI
+#--exec myisamchk -dvv var/master-data/test/t1.MYI
+#--exec myisamchk -iev var/master-data/test/t1.MYI
+DROP TABLE t1;
+
 --echo End of 5.0 tests
diff --git a/mysql-test/t/subselect.test b/mysql-test/t/subselect.test
index d076ca6bd33..86d2aec870c 100644
--- a/mysql-test/t/subselect.test
+++ b/mysql-test/t/subselect.test
@@ -2970,7 +2970,7 @@ DROP TABLE t1,t2;
 CREATE TABLE t1 (a INT, b INT);
 INSERT INTO t1 VALUES (1, 2), (1,3), (1,4), (2,1), (2,2);
 
--- returns no rows, when it should
+# returns no rows, when it should
 SELECT a1.a, COUNT(*) FROM t1 a1 WHERE a1.a = 1
 AND EXISTS( SELECT a2.a FROM t1 a2 WHERE a2.a = a1.a)
 GROUP BY a1.a;
diff --git a/mysql-test/t/symlink.test b/mysql-test/t/symlink.test
index 8c67a4c1048..21c17cfb45e 100644
--- a/mysql-test/t/symlink.test
+++ b/mysql-test/t/symlink.test
@@ -125,6 +125,18 @@ show create table t1;
 drop table t1;
 
 #
+# BUG#32111 - Security Breach via DATA/INDEX DIRECORY and RENAME TABLE
+#
+--replace_result $MYSQL_TEST_DIR TEST_DIR
+eval CREATE TABLE t1(a INT)
+DATA DIRECTORY='$MYSQL_TEST_DIR/var/master-data/mysql'
+INDEX DIRECTORY='$MYSQL_TEST_DIR/var/master-data/mysql';
+--replace_result $MYSQL_TEST_DIR TEST_DIR
+--error 1
+RENAME TABLE t1 TO user;
+DROP TABLE t1;
+
+#
 # Test specifying DATA DIRECTORY that is the same as what would normally
 # have been chosen. (Bug #8707)
 #
diff --git a/mysql-test/t/variables.test b/mysql-test/t/variables.test
index 63bc3c5e273..b661d0e8ae7 100644
--- a/mysql-test/t/variables.test
+++ b/mysql-test/t/variables.test
@@ -139,7 +139,7 @@ show global variables like 'net_%';
 show session variables like 'net_%';
 set net_buffer_length=1;
 show variables like 'net_buffer_length';
---warning 1292
+#warning 1292
 set net_buffer_length=2000000000;
 show variables like 'net_buffer_length';
 
diff --git a/mysys/charset.c b/mysys/charset.c
index 4c3f2d0ab71..d1cca150308 100644
--- a/mysys/charset.c
+++ b/mysys/charset.c
@@ -810,3 +810,43 @@ ulong escape_quotes_for_mysql(CHARSET_INFO *charset_info,
   *to= 0;
   return overflow ? (ulong)~0 : (ulong) (to - to_start);
 }
+
+
+/**
+  @brief Find compatible character set with ctype.
+
+  @param[in] original_cs Original character set
+
+  @note
+    128 my_charset_ucs2_general_uca      ->192 my_charset_utf8_general_uca_ci
+    129 my_charset_ucs2_icelandic_uca_ci ->193 my_charset_utf8_icelandic_uca_ci
+    130 my_charset_ucs2_latvian_uca_ci   ->194 my_charset_utf8_latvian_uca_ci
+    131 my_charset_ucs2_romanian_uca_ci  ->195 my_charset_utf8_romanian_uca_ci
+    132 my_charset_ucs2_slovenian_uca_ci ->196 my_charset_utf8_slovenian_uca_ci
+    133 my_charset_ucs2_polish_uca_ci    ->197 my_charset_utf8_polish_uca_ci
+    134 my_charset_ucs2_estonian_uca_ci  ->198 my_charset_utf8_estonian_uca_ci
+    135 my_charset_ucs2_spanish_uca_ci   ->199 my_charset_utf8_spanish_uca_ci
+    136 my_charset_ucs2_swedish_uca_ci   ->200 my_charset_utf8_swedish_uca_ci
+    137 my_charset_ucs2_turkish_uca_ci   ->201 my_charset_utf8_turkish_uca_ci
+    138 my_charset_ucs2_czech_uca_ci     ->202 my_charset_utf8_czech_uca_ci
+    139 my_charset_ucs2_danish_uca_ci    ->203 my_charset_utf8_danish_uca_ci
+    140 my_charset_ucs2_lithuanian_uca_ci->204 my_charset_utf8_lithuanian_uca_ci
+    141 my_charset_ucs2_slovak_uca_ci    ->205 my_charset_utf8_slovak_uca_ci
+    142 my_charset_ucs2_spanish2_uca_ci  ->206 my_charset_utf8_spanish2_uca_ci
+    143 my_charset_ucs2_roman_uca_ci     ->207 my_charset_utf8_roman_uca_ci
+    144 my_charset_ucs2_persian_uca_ci   ->208 my_charset_utf8_persian_uca_ci
+
+  @return Compatible character set or NULL.
+*/
+
+CHARSET_INFO *get_compatible_charset_with_ctype(CHARSET_INFO *original_cs)
+{
+  CHARSET_INFO *compatible_cs= 0;
+  DBUG_ENTER("get_compatible_charset_with_ctype");
+  if (!strcmp(original_cs->csname, "ucs2") &&
+      (compatible_cs= get_charset(original_cs->number + 64, MYF(0))) &&
+      (!compatible_cs->ctype ||
+       strcmp(original_cs->name + 4, compatible_cs->name + 4)))
+    compatible_cs= 0;
+  DBUG_RETURN(compatible_cs);
+}
diff --git a/mysys/my_symlink2.c b/mysys/my_symlink2.c
index e2493874097..ee0a45cf93b 100644
--- a/mysys/my_symlink2.c
+++ b/mysys/my_symlink2.c
@@ -126,6 +126,7 @@ int my_rename_with_symlink(const char *from, const char *to, myf MyFlags)
   int was_symlink= (!my_disable_symlinks &&
 		    !my_readlink(link_name, from, MYF(0)));
   int result=0;
+  int name_is_different;
   DBUG_ENTER("my_rename_with_symlink");
 
   if (!was_symlink)
@@ -134,6 +135,14 @@ int my_rename_with_symlink(const char *from, const char *to, myf MyFlags)
   /* Change filename that symlink pointed to */
   strmov(tmp_name, to);
   fn_same(tmp_name,link_name,1);		/* Copy dir */
+  name_is_different= strcmp(link_name, tmp_name);
+  if (name_is_different && !access(tmp_name, F_OK))
+  {
+    my_errno= EEXIST;
+    if (MyFlags & MY_WME)
+      my_error(EE_CANTCREATEFILE, MYF(0), tmp_name, EEXIST);
+    DBUG_RETURN(1);
+  }
 
   /* Create new symlink */
   if (my_symlink(tmp_name, to, MyFlags))
@@ -145,7 +154,7 @@ int my_rename_with_symlink(const char *from, const char *to, myf MyFlags)
     the same basename and different directories.
    */
 
-  if (strcmp(link_name, tmp_name) && my_rename(link_name, tmp_name, MyFlags))
+  if (name_is_different && my_rename(link_name, tmp_name, MyFlags))
   {
     int save_errno=my_errno;
     my_delete(to, MyFlags);			/* Remove created symlink */
diff --git a/sql/item_func.cc b/sql/item_func.cc
index 22b0044242c..148cc77f4a9 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -4944,13 +4944,44 @@ bool Item_func_match::fix_fields(THD *thd, Item **ref)
     my_error(ER_WRONG_ARGUMENTS,MYF(0),"MATCH");
     return TRUE;
   }
-  table=((Item_field *)item)->field->table;
+  /*
+    With prepared statements Item_func_match::fix_fields is called twice.
+    When it is called first time we have original item tree here and add
+    conversion layer for character sets that do not have ctype array a few
+    lines below. When it is called second time, we already have conversion
+    layer in item tree.
+  */
+  table= (item->type() == Item::FIELD_ITEM) ?
+         ((Item_field *)item)->field->table :
+         ((Item_field *)((Item_func_conv *)item)->key_item())->field->table;
   if (!(table->file->table_flags() & HA_CAN_FULLTEXT))
   {
     my_error(ER_TABLE_CANT_HANDLE_FT, MYF(0));
     return 1;
   }
   table->fulltext_searched=1;
+  /* A workaround for ucs2 character set */
+  if (!args[1]->collation.collation->ctype)
+  {
+    CHARSET_INFO *compatible_cs=
+      get_compatible_charset_with_ctype(args[1]->collation.collation);
+    bool rc= 1;
+    if (compatible_cs)
+    {
+      Item_string *conv_item= new Item_string("", 0, compatible_cs,
+                                              DERIVATION_EXPLICIT);
+      item= args[0];
+      args[0]= conv_item;
+      rc= agg_item_charsets(cmp_collation, func_name(), args, arg_count,
+                            MY_COLL_ALLOW_SUPERSET_CONV |
+                            MY_COLL_ALLOW_COERCIBLE_CONV |
+                            MY_COLL_DISALLOW_NONE, 1);
+      args[0]= item;
+    }
+    else
+      my_error(ER_WRONG_ARGUMENTS, MYF(0), "MATCH");
+    return rc;
+  }
   return agg_arg_collations_for_comparison(cmp_collation,
                                            args+1, arg_count-1, 0);
 }