concurrent-insert can now be set to 2 for concurrent inserts when there is holes in the data file

myisam_max_extra_sort_file_size is depricated
Ensure that myisam_data_pointer_size is honoured when creating new MyISAM files
Changed default value of myisam_data_pointer_size from 4 to 6 to get rid of 'table-is-full' errors



include/myisam.h:
  Change type of myisam_block_size and myisam_concurrent_insert to make them changeable in mysqld.cc
  Removed not used varaible myisam_max_extra_temp_length
include/thr_lock.h:
  Added extra parameter to get_status
myisam/mi_create.c:
  Ensure that myisam_data_pointer_size is honoured
myisam/mi_dynrec.c:
  If 'append_insert_at_end' is set, only write at end of myisam record file
myisam/mi_locking.c:
  Add extra argument to 'mi_get_status' to allow thr_lock to signal that we want to do a concurrent insert
  If this is used, we will append new insert rows at end of data file.
  Change mi_check_status() to allow concurrent_inserts even if there are holes in the file when myisam_concurent_insert=2
myisam/mi_static.c:
  Change behavior of myisam_concurrent_insert so that setting this to 2 allows inserts even if there is a hole in the data file.
  Default value is 2 for MyISAM direct usage but will be set to 1 (old default) by mysqld.cc
myisam/mi_statrec.c:
  If 'append_insert_at_end' is set, only write at end of myisam record file
myisam/mi_write.c:
  If 'append_insert_at_end' is set, only write at end of myisam record file
myisam/myisamdef.h:
  Support for insert-at-end even if there is holes in data file
mysql-test/r/gis-rtree.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/group_min_max.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/index_merge.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/index_merge_ror.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/merge.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/myisam.result:
  Test of concurrent_insert=2
mysql-test/r/null.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/preload.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/ps_1general.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/range.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/r/variables.result:
  concurrent_insert is now a integer, not a boolean
  myisam_extra_sort_file_size is deleted
mysql-test/r/view.result:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/t/index_merge.test:
  Test result changed because default value for myisam_data_pointer_size is changed from 4 -> 6
mysql-test/t/myisam.test:
  Test of concurrent_insert=2
mysql-test/t/ps_1general.test:
  Drop test table
mysql-test/t/variables.test:
  concurrent_insert is now a integer, not a boolean
  myisam_extra_sort_file_size is deleted
mysql-test/t/view.test:
  Drop tables that may be left from previous tests
mysys/thr_lock.c:
  Extra paramter to get_status to signal if concurrent_insert was used
sql/mysqld.cc:
  concurrent-insert can now be set to 2 for concurrent inserts when there is holes in the data file
  myisam_max_extra_sort_file_size is depricated
sql/set_var.cc:
  concurrent-insert is now an integer, not a bool
  myisam_max_extra_sort_file_size is deleted

include/myisam.h

@@ -190,10 +190,10 @@ typedef struct st_columndef		/* column information */
 typedef void (* invalidator_by_filename)(const char * filename);
 
 extern my_string myisam_log_filename;		/* Name of logfile */
-extern uint myisam_block_size;
+extern ulong myisam_block_size;
+extern ulong myisam_concurrent_insert;
 extern my_bool myisam_flush,myisam_delay_key_write,myisam_single_user;
-extern my_bool myisam_concurrent_insert;
-extern my_off_t myisam_max_temp_length,myisam_max_extra_temp_length;
+extern my_off_t myisam_max_temp_length;
 extern ulong myisam_bulk_insert_tree_size, myisam_data_pointer_size;
 
 	/* Prototypes for myisam-functions */

include/thr_lock.h

@@ -88,10 +88,10 @@ typedef struct st_thr_lock {
   struct st_lock_list read;
   struct st_lock_list write_wait;
   struct st_lock_list write;
-/* write_lock_count is incremented for write locks and reset on read locks */
+  /* write_lock_count is incremented for write locks and reset on read locks */
   ulong write_lock_count;
   uint read_no_write_count;
-  void (*get_status)(void*);		/* When one gets a lock */
+  void (*get_status)(void*, int);	/* When one gets a lock */
   void (*copy_status)(void*,void*);
   void (*update_status)(void*);		/* Before release of write */
   my_bool (*check_status)(void *);

myisam/mi_create.c

@@ -191,11 +191,10 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
       test(test_all_bits(options, HA_OPTION_CHECKSUM | HA_PACK_RECORD));
   min_pack_length+=packed;
 
-  if (!ci->data_file_length)
+  if (!ci->data_file_length && ci->max_rows)
   {
-    if (ci->max_rows == 0 || pack_reclength == INT_MAX32)
-      ci->data_file_length= INT_MAX32-1;		/* Should be enough */
-    else if ((~(ulonglong) 0)/ci->max_rows < (ulonglong) pack_reclength)
+    if (pack_reclength == INT_MAX32 ||
+             (~(ulonglong) 0)/ci->max_rows < (ulonglong) pack_reclength)
       ci->data_file_length= ~(ulonglong) 0;
     else
       ci->data_file_length=(ulonglong) ci->max_rows*pack_reclength;

myisam/mi_dynrec.c

@@ -149,7 +149,9 @@ static int write_dynamic_record(MI_INFO *info, const byte *record,
   {
     if (_mi_find_writepos(info,reclength,&filepos,&length))
       goto err;
-    if (_mi_write_part_record(info,filepos,length,info->s->state.dellink,
+    if (_mi_write_part_record(info,filepos,length,
+                              (info->append_insert_at_end ?
+                               HA_OFFSET_ERROR : info->s->state.dellink),
 			      (byte**) &record,&reclength,&flag))
       goto err;
   } while (reclength);
@@ -171,7 +173,8 @@ static int _mi_find_writepos(MI_INFO *info,
   ulong tmp;
   DBUG_ENTER("_mi_find_writepos");
 
-  if (info->s->state.dellink != HA_OFFSET_ERROR)
+  if (info->s->state.dellink != HA_OFFSET_ERROR &&
+      !info->append_insert_at_end)
   {
     /* Deleted blocks exists;  Get last used block */
     *filepos=info->s->state.dellink;
@@ -420,8 +423,9 @@ int _mi_write_part_record(MI_INFO *info,
   else if (length-long_block < *reclength+4)
   {						/* To short block */
     if (next_filepos == HA_OFFSET_ERROR)
-      next_filepos=info->s->state.dellink != HA_OFFSET_ERROR ?
-	info->s->state.dellink : info->state->data_file_length;
+      next_filepos= (info->s->state.dellink != HA_OFFSET_ERROR &&
+                     !info->append_insert_at_end ?
+                     info->s->state.dellink : info->state->data_file_length);
     if (*flag == 0)				/* First block */
     {
       if (*reclength > MI_MAX_BLOCK_LENGTH)

myisam/mi_locking.c

@@ -238,13 +238,24 @@ int mi_lock_database(MI_INFO *info, int lock_type)
   The following functions are called by thr_lock() in threaded applications
 ****************************************************************************/
 
-void mi_get_status(void* param)
+/*
+  Create a copy of the current status for the table
+
+  SYNOPSIS
+    mi_get_status()
+    param		Pointer to Myisam handler
+    concurrent_insert	Set to 1 if we are going to do concurrent inserts
+			(THR_WRITE_CONCURRENT_INSERT was used)
+*/
+
+void mi_get_status(void* param, int concurrent_insert)
 {
   MI_INFO *info=(MI_INFO*) param;
   DBUG_ENTER("mi_get_status");
-  DBUG_PRINT("info",("key_file: %ld  data_file: %ld",
+  DBUG_PRINT("info",("key_file: %ld  data_file: %ld  concurrent_insert: %d",
 		     (long) info->s->state.state.key_file_length,
-		     (long) info->s->state.state.data_file_length));
+		     (long) info->s->state.state.data_file_length,
+                     concurrent_insert));
 #ifndef DBUG_OFF
   if (info->state->key_file_length > info->s->state.state.key_file_length ||
       info->state->data_file_length > info->s->state.state.data_file_length)
@@ -254,9 +265,11 @@ void mi_get_status(void* param)
 #endif
   info->save_state=info->s->state.state;
   info->state= &info->save_state;
+  info->append_insert_at_end= concurrent_insert;
   DBUG_VOID_RETURN;
 }
 
+
 void mi_update_status(void* param)
 {
   MI_INFO *info=(MI_INFO*) param;
@@ -281,6 +294,7 @@ void mi_update_status(void* param)
     info->s->state.state= *info->state;
     info->state= &info->s->state.state;
   }
+  info->append_insert_at_end= 0;
 
   /*
     We have to flush the write cache here as other threads may start
@@ -307,20 +321,37 @@ void mi_copy_status(void* to,void *from)
   Check if should allow concurrent inserts
 
   IMPLEMENTATION
-    Don't allow concurrent inserts if we have a hole in the table.
+    Allow concurrent inserts if we don't have a hole in the table or
+    if there is no active write lock and there is active read locks and 
+    myisam_concurrent_insert == 2. In this last case the new
+    row('s) are inserted at end of file instead of filling up the hole.
+
+    The last case is to allow one to inserts into a heavily read-used table
+    even if there is holes.
 
   NOTES
-    Rtree indexes are disabled in mi_open()
+    If there is a an rtree indexes in the table, concurrent inserts are
+    disabled in mi_open()
 
   RETURN
     0  ok to use concurrent inserts
     1  not ok
 */
 
-my_bool mi_check_status(void* param)
+my_bool mi_check_status(void *param)
 {
   MI_INFO *info=(MI_INFO*) param;
-  return (my_bool) (info->s->state.dellink != HA_OFFSET_ERROR);
+  /*
+    The test for w_locks == 1 is here because this thread has already done an
+    external lock (in other words: w_locks == 1 means no other threads has
+    a write lock)
+  */
+  DBUG_PRINT("info",("dellink: %ld  r_locks: %u  w_locks: %u",
+                     (long) info->s->state.dellink, (uint) info->s->r_locks,
+                     (uint) info->s->w_locks));
+  return (my_bool) !(info->s->state.dellink == HA_OFFSET_ERROR ||
+                     (myisam_concurrent_insert == 2 && info->s->r_locks &&
+                      info->s->w_locks == 1));
 }
 
 

myisam/mi_static.c

@@ -31,14 +31,13 @@ uchar	NEAR myisam_pack_file_magic[]=
 my_string myisam_log_filename=(char*) "myisam.log";
 File	myisam_log_file= -1;
 uint	myisam_quick_table_bits=9;
-uint	myisam_block_size=MI_KEY_BLOCK_LENGTH;		/* Best by test */
+ulong	myisam_block_size= MI_KEY_BLOCK_LENGTH;		/* Best by test */
 my_bool myisam_flush=0, myisam_delay_key_write=0, myisam_single_user=0;
 #if defined(THREAD) && !defined(DONT_USE_RW_LOCKS)
-my_bool myisam_concurrent_insert=1;
+ulong myisam_concurrent_insert= 2;
 #else
-my_bool myisam_concurrent_insert=0;
+ulong myisam_concurrent_insert= 0;
 #endif
-my_off_t myisam_max_extra_temp_length= (my_off_t)MI_MAX_TEMP_LENGTH;
 my_off_t myisam_max_temp_length= MAX_FILE_SIZE;
 ulong    myisam_bulk_insert_tree_size=8192*1024;
 ulong    myisam_data_pointer_size=4;

myisam/mi_statrec.c

@@ -23,7 +23,8 @@ int _mi_write_static_record(MI_INFO *info, const byte *record)
 {
   uchar temp[8];				/* max pointer length */
 
-  if (info->s->state.dellink != HA_OFFSET_ERROR)
+  if (info->s->state.dellink != HA_OFFSET_ERROR &&
+      !info->append_insert_at_end)
   {
     my_off_t filepos=info->s->state.dellink;
     info->rec_cache.seek_not_done=1;		/* We have done a seek */

myisam/mi_write.c

@@ -67,7 +67,8 @@ int mi_write(MI_INFO *info, byte *record)
 			       MYF(MY_SEEK_NOT_DONE) | info->lock_wait))
     goto err;
 #endif
-  filepos= ((share->state.dellink != HA_OFFSET_ERROR) ?
+  filepos= ((share->state.dellink != HA_OFFSET_ERROR &&
+             !info->append_insert_at_end) ?
 	    share->state.dellink :
 	    info->state->data_file_length);
 

myisam/myisamdef.h

@@ -271,6 +271,7 @@ struct st_myisam_info {
   uint  preload_buff_size;              /* When preloading indexes */
   myf lock_wait;			/* is 0 or MY_DONT_WAIT */
   my_bool was_locked;			/* Was locked in panic */
+  my_bool append_insert_at_end;		/* Set if concurrent insert */
   my_bool quick_mode;
   my_bool page_changed;		/* If info->buff can't be used for rnext */
   my_bool buff_used;		/* If info->buff has to be reread for rnext */
@@ -702,7 +703,7 @@ int _mi_cmp_dynamic_unique(MI_INFO *info, MI_UNIQUEDEF *def,
 			   const byte *record, my_off_t pos);
 int mi_unique_comp(MI_UNIQUEDEF *def, const byte *a, const byte *b,
 		   my_bool null_are_equal);
-void mi_get_status(void* param);
+void mi_get_status(void* param, int concurrent_insert);
 void mi_update_status(void* param);
 void mi_copy_status(void* to,void *from);
 my_bool mi_check_status(void* param);

mysql-test/r/gis-rtree.result

@@ -167,7 +167,7 @@ count(*)
 150
 EXPLAIN SELECT fid, AsText(g) FROM t1 WHERE Within(g, GeomFromText('Polygon((140 140,160 140,160 160,140 160,140 140))'));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	g	g	32	NULL	7	Using where
+1	SIMPLE	t1	range	g	g	32	NULL	8	Using where
 SELECT fid, AsText(g) FROM t1 WHERE Within(g, GeomFromText('Polygon((140 140,160 140,160 160,140 160,140 140))'));
 fid	AsText(g)
 1	LINESTRING(150 150,150 150)

mysql-test/r/group_min_max.result

@@ -287,7 +287,7 @@ b	i421	l421
 b	m422	p422
 explain select a1,a2,b,min(c),max(c) from t1 where a1 < 'd' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	9	Using where; Using index for group-by
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	10	Using where; Using index for group-by
 explain select a1,a2,b,min(c),max(c) from t1 where a1 >= 'b' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	14	Using where; Using index for group-by
@@ -317,22 +317,22 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	14	Using where; Using index for group-by
 explain select a1,  max(c)           from t1 where a1 in ('a','b','d') group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	13	Using where; Using index for group-by
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	14	Using where; Using index for group-by
 explain select a1,a2,b,       max(c) from t2 where a1 < 'd' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	12	Using where; Using index for group-by
+1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	14	Using where; Using index for group-by
 explain select a1,a2,b,min(c),max(c) from t2 where a1 < 'd' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	12	Using where; Using index for group-by
+1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	14	Using where; Using index for group-by
 explain select a1,a2,b,min(c),max(c) from t2 where a1 >= 'b' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	16	Using where; Using index for group-by
 explain select a1,a2,b,       max(c) from t2 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	18	Using where; Using index for group-by
+1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	17	Using where; Using index for group-by
 explain select a1, max(c)            from t2 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	18	Using where; Using index for group-by
+1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	17	Using where; Using index for group-by
 explain select a1,a2,b,min(c),max(c) from t2 where a1 >= 'c' or a2 < 'b' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	21	Using where; Using index for group-by
@@ -353,7 +353,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	16	Using where; Using index for group-by
 explain select a1,  max(c)           from t2 where a1 in ('a','b','d') group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	13	Using where; Using index for group-by
+1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	14	Using where; Using index for group-by
 select a1,a2,b,min(c),max(c) from t1 where a1 < 'd' group by a1,a2,b;
 a1	a2	b	min(c)	max(c)
 a	a	a	a111	d111
@@ -1398,10 +1398,10 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	NULL	idx_t2_1	163	NULL	21	Using where; Using index for group-by
 explain select a1,a2,b,min(c) from t2 where ((a1 > 'a') or (a1 < '9'))  and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c < 'h112') or (c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122')) group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	17	Using where; Using index for group-by
+1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	16	Using where; Using index for group-by
 explain select a1,a2,b,min(c) from t2 where ((a1 > 'a') or (a1 < '9'))  and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122') or (c < 'h112') or (c = 'c111')) group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	17	Using where; Using index for group-by
+1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	163	NULL	16	Using where; Using index for group-by
 explain select a1,a2,b,min(c) from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	16	Using where; Using index for group-by
@@ -1824,16 +1824,16 @@ ord(a1) + count(distinct a1,a2,b)
 104
 explain select a1,a2,b, concat(min(c), max(c)) from t1 where a1 < 'd' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	9	Using where; Using index for group-by
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	10	Using where; Using index for group-by
 explain select concat(a1,min(c)),b from t1 where a1 < 'd' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	9	Using where; Using index for group-by
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	10	Using where; Using index for group-by
 explain select concat(a1,min(c)),b,max(c) from t1 where a1 < 'd' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	9	Using where; Using index for group-by
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	10	Using where; Using index for group-by
 explain select concat(a1,a2),b,min(c),max(c) from t1 where a1 < 'd' group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	9	Using where; Using index for group-by
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	10	Using where; Using index for group-by
 explain select concat(ord(min(b)),ord(max(b))),min(b),max(b) from t1 group by a1,a2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	NULL	idx_t1_1	130	NULL	9	Using index for group-by

mysql-test/r/index_merge.result

@@ -17,11 +17,11 @@ Table	Op	Msg_type	Msg_text
 test.t0	analyze	status	OK
 explain select * from t0 where key1 < 3 or key1 > 1020;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t0	range	i1	i1	4	NULL	55	Using where
+1	SIMPLE	t0	range	i1	i1	4	NULL	78	Using where
 explain 
 select * from t0 where key1 < 3 or key2 > 1020;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t0	index_merge	i1,i2	i1,i2	4,4	NULL	31	Using sort_union(i1,i2); Using where
+1	SIMPLE	t0	index_merge	i1,i2	i1,i2	4,4	NULL	45	Using sort_union(i1,i2); Using where
 select * from t0 where key1 < 3 or key2 > 1020;
 key1	key2	key3	key4	key5	key6	key7	key8
 1	1	1	1	1	1	1	1023
@@ -36,7 +36,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain
 select * from t0 where (key1 > 30 and key1<35) or (key2 >32 and key2 < 40);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t0	index_merge	i1,i2	i1,i2	4,4	NULL	9	Using sort_union(i1,i2); Using where
+1	SIMPLE	t0	index_merge	i1,i2	i1,i2	4,4	NULL	11	Using sort_union(i1,i2); Using where
 select * from t0 where (key1 > 30 and key1<35) or (key2 >32 and key2 < 40);
 key1	key2	key3	key4	key5	key6	key7	key8
 31	31	31	31	31	31	31	993
@@ -90,7 +90,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain select key1 from t0 where (key1 <=> null) or (key1 < 5) or 
 (key3=10) or (key4 <=> null);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t0	index_merge	i1,i3,i4	i1,i3	4,4	NULL	5	Using sort_union(i1,i3); Using where
+1	SIMPLE	t0	index_merge	i1,i3,i4	i1,i3	4,4	NULL	6	Using sort_union(i1,i3); Using where
 explain select * from t0 where 
 (key1 < 3 or key2 < 3) and (key3 < 4 or key4 < 4) and (key5 < 5 or key6 < 5);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -113,7 +113,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain select * from t0 where 
 (key1 < 3 or key2 < 3) and (key3 < 100);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t0	range	i1,i2,i3	i3	4	NULL	96	Using where
+1	SIMPLE	t0	range	i1,i2,i3	i3	4	NULL	95	Using where
 explain select * from t0 where
 (key1 < 3 or key2 < 3) and (key3 < 1000);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -152,7 +152,7 @@ explain select * from t0 where
 or
 ((key7 <7 or key8 < 4) and (key5 < 5 or key6 < 6));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t0	index_merge	i1,i2,i3,i5,i6,i7,i8	i3,i5,i7,i8	4,4,4,4	NULL	21	Using sort_union(i3,i5,i7,i8); Using where
+1	SIMPLE	t0	index_merge	i1,i2,i3,i5,i6,i7,i8	i3,i5,i7,i8	4,4,4,4	NULL	20	Using sort_union(i3,i5,i7,i8); Using where
 explain select * from t0 where
 ((key3 <5 or key5 < 4) and (key1 < 4 or key2 < 4))
 or
@@ -257,7 +257,7 @@ explain
 select * from t0,t1 where (t0.key1=t1.key1) and 
 (t0.key1=3 or t0.key2=4) and t1.key1<200;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t0	range	i1,i2	i1	4	NULL	179	Using where
+1	SIMPLE	t0	ALL	i1,i2	NULL	NULL	NULL	1024	Using where
 1	SIMPLE	t1	ref	i1	i1	4	test.t0.key1	1	
 explain 
 select * from t0,t1 where (t0.key1=t1.key1) and 
@@ -345,8 +345,8 @@ from t0 as A force index(i1,i2), t0 as B force index (i1,i2)
 where (A.key1 < 500000 or A.key2 < 3)
 and   (B.key1 < 500000 or B.key2 < 3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	A	index_merge	i1,i2	i1,i2	4,4	NULL	1016	Using sort_union(i1,i2); Using where
-1	SIMPLE	B	index_merge	i1,i2	i1,i2	4,4	NULL	1016	Using sort_union(i1,i2); Using where
+1	SIMPLE	A	index_merge	i1,i2	i1,i2	4,4	NULL	1013	Using sort_union(i1,i2); Using where
+1	SIMPLE	B	index_merge	i1,i2	i1,i2	4,4	NULL	1013	Using sort_union(i1,i2); Using where
 select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) 
 from t0 as A force index(i1,i2), t0 as B force index (i1,i2) 
 where (A.key1 < 500000 or A.key2 < 3)
@@ -371,11 +371,11 @@ alter table t0 add filler1 char(200), add filler2 char(200), add filler3 char(20
 update t0 set key2=1, key3=1, key4=1, key5=1,key6=1,key7=1 where key7 < 500;
 explain select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) 
 from t0 as A, t0 as B 
-where (A.key1 = 1 and A.key2 = 1 and A.key3 = 1 and A.key4=1 and A.key5=1 and A.key6=1 and A.key7or16 = 1 or A.key8=1)
-and (B.key1 = 1 and B.key2 = 1 and B.key3 = 1 and B.key4=1 and B.key5=1 and B.key6=1 and B.key7or16 = 1 or B.key8=1);
+where (A.key1 = 1 and A.key2 = 1 and A.key3 = 1 and A.key4=1 and A.key5=1 and A.key6=1 and A.key# = 1 or A.key8=1)
+and (B.key1 = 1 and B.key2 = 1 and B.key3 = 1 and B.key4=1 and B.key5=1 and B.key6=1 and B.key# = 1 or B.key8=1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	A	index_merge	i1,i2,i3,i4,i5,i6,i7?,i8	i2,i3,i4,i5,i6,i7?,i8	X	NULL	7or16	Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where
-1	SIMPLE	B	index_merge	i1,i2,i3,i4,i5,i6,i7?,i8	i2,i3,i4,i5,i6,i7?,i8	X	NULL	7or16	Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where
+1	SIMPLE	A	index_merge	i1,i2,i3,i4,i5,i6,i7?,i8	i2,i3,i4,i5,i6,i7?,i8	X	NULL	#	Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where
+1	SIMPLE	B	index_merge	i1,i2,i3,i4,i5,i6,i7?,i8	i2,i3,i4,i5,i6,i7?,i8	X	NULL	#	Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where
 select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) 
 from t0 as A, t0 as B 
 where (A.key1 = 1 and A.key2 = 1 and A.key3 = 1 and A.key4=1 and A.key5=1 and A.key6=1 and A.key7 = 1 or A.key8=1)

mysql-test/r/index_merge_ror.result

@@ -4,13 +4,13 @@ count(*)
 64801
 explain select key1,key2 from t1 where key1=100 and key2=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	3	Using intersect(key1,key2); Using where; Using index
+1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	58	Using intersect(key1,key2); Using where; Using index
 select key1,key2 from t1 where key1=100 and key2=100;
 key1	key2
 100	100
 explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	8	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	154	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
 select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 key1	key2	key3	key4	filler1
 100	100	100	100	key1-key2-key3-key4
@@ -18,21 +18,21 @@ insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, -1, -1, 'key1
 insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 100, 100, 'key4-key3');
 explain select key1,key2,filler1 from t1 where key1=100 and key2=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	3	Using intersect(key1,key2); Using where
+1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	58	Using intersect(key1,key2); Using where
 select key1,key2,filler1 from t1 where key1=100 and key2=100;
 key1	key2	filler1
 100	100	key1-key2-key3-key4
 100	100	key1-key2
 explain select key1,key2 from t1 where key1=100 and key2=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	3	Using intersect(key1,key2); Using where; Using index
+1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	58	Using intersect(key1,key2); Using where; Using index
 select key1,key2 from t1 where key1=100 and key2=100;
 key1	key2
 100	100
 100	100
 explain select key1,key2,key3,key4 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	8	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	154	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
 select key1,key2,key3,key4 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 key1	key2	key3	key4
 100	100	100	100
@@ -40,7 +40,7 @@ key1	key2	key3	key4
 -1	-1	100	100
 explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	8	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	154	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
 select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 key1	key2	key3	key4	filler1
 100	100	100	100	key1-key2-key3-key4
@@ -48,14 +48,14 @@ key1	key2	key3	key4	filler1
 -1	-1	100	100	key4-key3
 explain select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2,key3	5,5,5	NULL	1	Using intersect(key1,key2,key3); Using where; Using index
+1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2,key3	5,5,5	NULL	2	Using intersect(key1,key2,key3); Using where; Using index
 select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
 key1	key2	key3
 100	100	100
 insert into t1 (key1,key2,key3,key4,filler1) values (101,101,101,101, 'key1234-101');
 explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=101;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2,key3	5,5,5	NULL	5	Using union(intersect(key1,key2),key3); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2,key3	5,5,5	NULL	83	Using union(intersect(key1,key2),key3); Using where
 select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=101;
 key1	key2	key3	key4	filler1
 100	100	100	100	key1-key2-key3-key4
@@ -72,19 +72,19 @@ select key1,key2,filler1 from t1 where key2=100 and key2=200;
 key1	key2	filler1
 explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	8	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	152	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
 select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 key1	key2	key3	key4	filler1
 -1	-1	100	100	key4-key3
 delete from t1 where key3=100 and key4=100;
 explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	8	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key1,key2,key3,key4	5,5,5,5	NULL	152	Using union(intersect(key1,key2),intersect(key3,key4)); Using where
 select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
 key1	key2	key3	key4	filler1
 explain select key1,key2 from t1 where key1=100 and key2=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	3	Using intersect(key1,key2); Using where; Using index
+1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,5	NULL	57	Using intersect(key1,key2); Using where; Using index
 select key1,key2 from t1 where key1=100 and key2=100;
 key1	key2
 insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-1');
@@ -92,7 +92,7 @@ insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key
 insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-3');
 explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key3,key1,key2,key4	5,5,5,5	NULL	16	Using union(key3,intersect(key1,key2),key4); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key3,key1,key2,key4	5,5,5,5	NULL	136	Using union(key3,intersect(key1,key2),key4); Using where
 select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
 key1	key2	key3	key4	filler1
 100	100	200	200	key1-key2-key3-key4-3
@@ -101,7 +101,7 @@ key1	key2	key3	key4	filler1
 insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, -1, 200,'key4');
 explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key3,key1,key2,key4	5,5,5,5	NULL	18	Using union(key3,intersect(key1,key2),key4); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key3,key1,key2,key4	5,5,5,5	NULL	146	Using union(key3,intersect(key1,key2),key4); Using where
 select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
 key1	key2	key3	key4	filler1
 100	100	200	200	key1-key2-key3-key4-3
@@ -111,7 +111,7 @@ key1	key2	key3	key4	filler1
 insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 200, -1,'key3');
 explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key3,key1,key2,key4	5,5,5,5	NULL	20	Using union(key3,intersect(key1,key2),key4); Using where
+1	SIMPLE	t1	index_merge	key1,key2,key3,key4	key3,key1,key2,key4	5,5,5,5	NULL	156	Using union(key3,intersect(key1,key2),key4); Using where
 select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
 key1	key2	key3	key4	filler1
 100	100	200	200	key1-key2-key3-key4-3
@@ -121,50 +121,50 @@ key1	key2	key3	key4	filler1
 -1	-1	200	-1	key3
 explain select * from t1 where st_a=1 and st_b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	st_a,st_b	4,4	NULL	2508	Using intersect(st_a,st_b); Using where
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	st_a,st_b	4,4	NULL	2637	Using intersect(st_a,st_b); Using where
 explain select st_a,st_b from t1 where st_a=1 and st_b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	st_a,st_b	4,4	NULL	2508	Using intersect(st_a,st_b); Using where; Using index
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	st_a,st_b	4,4	NULL	2637	Using intersect(st_a,st_b); Using where; Using index
 explain select st_a from t1 ignore index (st_a) where st_a=1 and st_b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,stb_swt1a_2b,stb_swt1b,st_b	st_b	4	const	14720	Using where
+1	SIMPLE	t1	ref	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,stb_swt1a_2b,stb_swt1b,st_b	st_b	4	const	15093	Using where
 explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a	sta_swt12a	12	const,const,const	958	
+1	SIMPLE	t1	ref	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a	sta_swt21a	12	const,const,const	971	
 explain select * from t1 where st_b=1 and swt1b=1 and swt2b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	stb_swt1a_2b,stb_swt1b,st_b	stb_swt1b	8	const,const	3757	Using where
+1	SIMPLE	t1	ref	stb_swt1a_2b,stb_swt1b,st_b	stb_swt1a_2b	8	const,const	3879	Using where
 explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt12a,stb_swt1a_2b	12,12	NULL	42	Using intersect(sta_swt12a,stb_swt1a_2b); Using where
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt12a,stb_swt1a_2b	12,12	NULL	44	Using intersect(sta_swt12a,stb_swt1a_2b); Using where
 explain select * from t1 ignore index (sta_swt21a, stb_swt1a_2b) 
 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b	sta_swt12a,stb_swt1b	12,8	NULL	42	Using intersect(sta_swt12a,stb_swt1b); Using where
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b	sta_swt12a,stb_swt1b	12,8	NULL	44	Using intersect(sta_swt12a,stb_swt1b); Using where
 explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b) 
 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b	sta_swt1a,sta_swt2a,stb_swt1b	8,8,8	NULL	41	Using intersect(sta_swt1a,sta_swt2a,stb_swt1b); Using where
+1	SIMPLE	t1	index_merge	sta_swt1a,sta_swt2a,st_a,stb_swt1b,st_b	sta_swt1a,sta_swt2a,stb_swt1b	8,8,8	NULL	43	Using intersect(sta_swt1a,sta_swt2a,stb_swt1b); Using where
 explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b, stb_swt1b) 
 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt1a,sta_swt2a,st_a,st_b	sta_swt1a,sta_swt2a,st_b	8,8,4	NULL	159	Using intersect(sta_swt1a,sta_swt2a,st_b); Using where
+1	SIMPLE	t1	index_merge	sta_swt1a,sta_swt2a,st_a,st_b	sta_swt1a,sta_swt2a,st_b	8,8,4	NULL	168	Using intersect(sta_swt1a,sta_swt2a,st_b); Using where
 explain select * from t1 
 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt12a,stb_swt1a_2b	12,12	NULL	42	Using intersect(sta_swt12a,stb_swt1a_2b); Using where
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt12a,stb_swt1a_2b	12,12	NULL	44	Using intersect(sta_swt12a,stb_swt1a_2b); Using where
 explain select * from t1 
 where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt1a,stb_swt1b	8,8	NULL	163	Using intersect(sta_swt1a,stb_swt1b); Using where
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt1a,stb_swt1b	8,8	NULL	174	Using intersect(sta_swt1a,stb_swt1b); Using where
 explain select st_a from t1 
 where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt1a,stb_swt1b	8,8	NULL	163	Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt1a,stb_swt1b	8,8	NULL	174	Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
 explain select st_a from t1 
 where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt1a,stb_swt1b	8,8	NULL	163	Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
+1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt1a,stb_swt1b	8,8	NULL	174	Using intersect(sta_swt1a,stb_swt1b); Using where; Using index
 drop table t0,t1;
 create table t2 (
 a char(10),

mysql-test/r/merge.result

@@ -39,7 +39,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t3	range	a	a	4	NULL	18	Using where
 explain select * from t3 where a > 10 and a < 20;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t3	range	a	a	4	NULL	16	Using where
+1	SIMPLE	t3	range	a	a	4	NULL	17	Using where
 select * from t3 where a = 10;
 a	b
 10	Testing

mysql-test/r/myisam.result

@@ -1203,3 +1203,60 @@ drop table t1;
 Got one of the listed errors
 drop table t1;
 ERROR 42S02: Unknown table 't1'
+set @save_concurrent_insert=@@concurrent_insert;
+set global concurrent_insert=1;
+create table t1 (a int);
+insert into t1 values (1),(2),(3),(4),(5);
+lock table t1 read local;
+insert into t1 values(6),(7);
+unlock tables;
+delete from t1 where a>=3 and a<=4;
+lock table t1 read local;
+set global concurrent_insert=2;
+insert into t1 values (8),(9);
+unlock tables;
+insert into t1 values (10),(11),(12);
+select * from t1;
+a
+1
+2
+11
+10
+5
+6
+7
+8
+9
+12
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+drop table t1;
+create table t1 (a int, b varchar(30) default "hello");
+insert into t1 (a) values (1),(2),(3),(4),(5);
+lock table t1 read local;
+insert into t1 (a) values(6),(7);
+unlock tables;
+delete from t1 where a>=3 and a<=4;
+lock table t1 read local;
+set global concurrent_insert=2;
+insert into t1 (a) values (8),(9);
+unlock tables;
+insert into t1 (a) values (10),(11),(12);
+select a from t1;
+a
+1
+2
+11
+10
+5
+6
+7
+8
+9
+12
+check table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+drop table t1;
+set global concurrent_insert=@save_concurrent_insert;

mysql-test/r/null.result

@@ -170,7 +170,7 @@ insert into t1 select i*2 from t1;
 insert into t1 values(null);
 explain select * from t1 where i=2 or i is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref_or_null	i	i	5	const	10	Using where; Using index
+1	SIMPLE	t1	ref_or_null	i	i	5	const	9	Using where; Using index
 select count(*) from t1 where i=2 or i is null;
 count(*)
 10
@@ -179,7 +179,7 @@ Warnings:
 Warning	1265	Data truncated for column 'i' at row 513
 explain select * from t1 where i=2 or i is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	i	i	4	const	8	Using index
+1	SIMPLE	t1	ref	i	i	4	const	7	Using index
 select count(*) from t1 where i=2 or i is null;
 count(*)
 9

mysql-test/r/preload.result

@@ -55,15 +55,15 @@ count(*)
 4181
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	217
-Key_reads	45
+Key_read_requests	294
+Key_reads	60
 select count(*) from t1 where b = 'test1';
 count(*)
 4181
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	434
-Key_reads	45
+Key_read_requests	588
+Key_reads	60
 flush tables;
 flush status;
 select @@preload_buffer_size;
@@ -74,15 +74,15 @@ Table	Op	Msg_type	Msg_text
 test.t1	preload_keys	status	OK
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	581
-Key_reads	581
+Key_read_requests	774
+Key_reads	774
 select count(*) from t1 where b = 'test1';
 count(*)
 4181
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	798
-Key_reads	581
+Key_read_requests	1068
+Key_reads	774
 flush tables;
 flush status;
 show status like "key_read%";
@@ -98,15 +98,15 @@ Table	Op	Msg_type	Msg_text
 test.t1	preload_keys	status	OK
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	10
-Key_reads	10
+Key_read_requests	17
+Key_reads	17
 select count(*) from t1 where b = 'test1';
 count(*)
 4181
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	227
-Key_reads	52
+Key_read_requests	311
+Key_reads	75
 flush tables;
 flush status;
 show status like "key_read%";
@@ -123,8 +123,8 @@ test.t1	preload_keys	status	OK
 test.t2	preload_keys	status	OK
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	587
-Key_reads	587
+Key_read_requests	785
+Key_reads	785
 select count(*) from t1 where b = 'test1';
 count(*)
 4181
@@ -133,8 +133,8 @@ count(*)
 2584
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	938
-Key_reads	613
+Key_read_requests	1266
+Key_reads	821
 flush tables;
 flush status;
 show status like "key_read%";
@@ -149,8 +149,8 @@ Warnings:
 Error	1146	Table 'test.t3' doesn't exist
 show status like "key_read%";
 Variable_name	Value
-Key_read_requests	355
-Key_reads	355
+Key_read_requests	478
+Key_reads	478
 flush tables;
 flush status;
 show status like "key_read%";

mysql-test/r/ps_1general.result

@@ -290,11 +290,11 @@ t2	1	t2_idx	1	b	A	NULL	NULL	NULL	YES	BTREE
 prepare stmt4 from ' show table status from test like ''t2%'' ';
 execute stmt4;
 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
-t2	MyISAM	10	Fixed	0	0	0	64424509439	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL		
+t2	MyISAM	10	Fixed	0	0	0	4222124650659839	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL		
 prepare stmt4 from ' show table status from test like ''t9%'' ';
 execute stmt4;
 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
-t9	MyISAM	10	Dynamic	2	216	432	4294967295	2048	0	NULL	#	#	#	latin1_swedish_ci	NULL		
+t9	MyISAM	10	Dynamic	2	216	432	281474976710655	2048	0	NULL	#	#	#	latin1_swedish_ci	NULL		
 prepare stmt4 from ' show status like ''Threads_running'' ';
 execute stmt4;
 Variable_name	Value
@@ -803,4 +803,4 @@ prepare stmt1 from @string ;
 execute stmt1 ;
 prepare stmt1 from ' select * from t5 ' ;
 execute stmt1 ;
-drop table t5 ;
+drop table t5, t9;

mysql-test/r/range.result

@@ -421,19 +421,19 @@ test.t1	analyze	status	OK
 test.t2	analyze	status	Table is already up to date
 explain select * from t1, t2  where t1.uid=t2.uid AND t1.uid > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	128	Using where
+1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	112	Using where
 1	SIMPLE	t2	ref	uid_index	uid_index	4	test.t1.uid	38	
 explain select * from t1, t2  where t1.uid=t2.uid AND t2.uid > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	128	Using where
+1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	112	Using where
 1	SIMPLE	t2	ref	uid_index	uid_index	4	test.t1.uid	38	
 explain select * from t1, t2  where t1.uid=t2.uid AND t1.uid != 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	129	Using where
+1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	113	Using where
 1	SIMPLE	t2	ref	uid_index	uid_index	4	test.t1.uid	38	
 explain select * from t1, t2  where t1.uid=t2.uid AND t2.uid != 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	129	Using where
+1	SIMPLE	t1	range	uid_index	uid_index	4	NULL	113	Using where
 1	SIMPLE	t2	ref	uid_index	uid_index	4	test.t1.uid	38	
 select * from t1, t2  where t1.uid=t2.uid AND t1.uid > 0;
 id	name	uid	id	name	uid

mysql-test/r/variables.result

@@ -117,27 +117,23 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 Warnings:
 Note	1003	select sql_no_cache 345 AS `@@IDENTITY`,last_insert_id() AS `last_insert_id()`,345 AS `@@identity`
 set big_tables=OFF, big_tables=ON, big_tables=0, big_tables=1, big_tables="OFF", big_tables="ON";
-set global concurrent_insert=ON;
+set global concurrent_insert=2;
 show variables like 'concurrent_insert';
 Variable_name	Value
-concurrent_insert	ON
+concurrent_insert	2
 set global concurrent_insert=1;
 show variables like 'concurrent_insert';
 Variable_name	Value
-concurrent_insert	ON
+concurrent_insert	1
 set global concurrent_insert=0;
 show variables like 'concurrent_insert';
 Variable_name	Value
-concurrent_insert	OFF
-set global concurrent_insert=OFF;
-show variables like 'concurrent_insert';
-Variable_name	Value
-concurrent_insert	OFF
+concurrent_insert	0
 set global concurrent_insert=DEFAULT;
-show variables like 'concurrent_insert';
-Variable_name	Value
-concurrent_insert	ON
-set global timed_mutexes=1;
+select @@concurrent_insert;
+@@concurrent_insert
+1
+set global timed_mutexes=ON;
 show variables like 'timed_mutexes';
 Variable_name	Value
 timed_mutexes	ON
@@ -281,8 +277,6 @@ select @@global.sql_auto_is_null;
 ERROR HY000: Variable 'sql_auto_is_null' is a SESSION variable
 set myisam_max_sort_file_size=100;
 ERROR HY000: Variable 'myisam_max_sort_file_size' is a GLOBAL variable and should be set with SET GLOBAL
-set myisam_max_extra_sort_file_size=100;
-ERROR HY000: Variable 'myisam_max_extra_sort_file_size' is a GLOBAL variable and should be set with SET GLOBAL
 set @@SQL_WARNINGS=NULL;
 ERROR 42000: Variable 'sql_warnings' can't be set to the value of 'NULL'
 set autocommit=1;
@@ -338,11 +332,6 @@ select @@max_user_connections;
 @@max_user_connections
 100
 set global max_write_lock_count=100;
-set global myisam_max_extra_sort_file_size=100;
-select @@myisam_max_extra_sort_file_size;
-@@myisam_max_extra_sort_file_size
-100
-set global myisam_max_sort_file_size=100;
 set myisam_sort_buffer_size=100;
 set net_buffer_length=100;
 set net_read_timeout=100;

mysql-test/r/view.result

-drop table if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
+drop table if exists t1,t2,t9,`t1a``b`,v1,v2,v3,v4,v5,v6;
 drop view if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
 drop database if exists mysqltest;
 use test;
@@ -149,7 +149,7 @@ v5	VIEW
 v6	VIEW
 show table status;
 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	5	9	45	38654705663	1024	0	NULL	#	#	NULL	latin1_swedish_ci	NULL		
+t1	MyISAM	10	Fixed	5	9	45	2533274790395903	1024	0	NULL	#	#	NULL	latin1_swedish_ci	NULL		
 v1	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	#	#	NULL	NULL	NULL	NULL	view
 v2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	#	#	NULL	NULL	NULL	NULL	view
 v3	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	#	#	NULL	NULL	NULL	NULL	view

mysql-test/t/index_merge.test

@@ -310,7 +310,7 @@ update t0 set key2=1, key3=1, key4=1, key5=1,key6=1,key7=1 where key7 < 500;
 # The next query will not use index i7 in intersection if the OS doesn't 
 # support file sizes > 2GB. (ha_myisam::ref_length depends on this and index
 # scan cost estimates depend on ha_myisam::ref_length)
---replace_result "4,4,4,4,4,4,4" X "4,4,4,4,4,4" X "i6,i7" "i6,i7?" "i6" "i6,i7?" 7 7or16 16 7or16
+--replace_result "4,4,4,4,4,4,4" X "4,4,4,4,4,4" X "i6,i7" "i6,i7?" "i6" "i6,i7?" 7 # 16 # 18 #
 explain select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) 
  from t0 as A, t0 as B 
  where (A.key1 = 1 and A.key2 = 1 and A.key3 = 1 and A.key4=1 and A.key5=1 and A.key6=1 and A.key7 = 1 or A.key8=1)

mysql-test/t/myisam.test

@@ -606,3 +606,57 @@ system rm ./var/master-data/test/t1.MYD ;
 drop table t1;
 --error 1051
 drop table t1;
+
+#
+# Test concurrent insert
+# First with static record length
+#
+set @save_concurrent_insert=@@concurrent_insert;
+set global concurrent_insert=1;
+create table t1 (a int);
+insert into t1 values (1),(2),(3),(4),(5);
+lock table t1 read local;
+connect (con1,localhost,root,,);
+connection con1;
+# Insert in table without hole
+insert into t1 values(6),(7);
+connection default;
+unlock tables;
+delete from t1 where a>=3 and a<=4;
+lock table t1 read local;
+connection con1;
+set global concurrent_insert=2;
+# Insert in table with hole -> Should insert at end
+insert into t1 values (8),(9);
+connection default;
+unlock tables;
+# Insert into hole
+insert into t1 values (10),(11),(12);
+select * from t1;
+check table t1;
+drop table t1;
+
+# Same test with dynamic record length
+create table t1 (a int, b varchar(30) default "hello");
+insert into t1 (a) values (1),(2),(3),(4),(5);
+lock table t1 read local;
+connect (con1,localhost,root,,);
+connection con1;
+# Insert in table without hole
+insert into t1 (a) values(6),(7);
+connection default;
+unlock tables;
+delete from t1 where a>=3 and a<=4;
+lock table t1 read local;
+connection con1;
+set global concurrent_insert=2;
+# Insert in table with hole -> Should insert at end
+insert into t1 (a) values (8),(9);
+connection default;
+unlock tables;
+# Insert into hole
+insert into t1 (a) values (10),(11),(12);
+select a from t1;
+check table t1;
+drop table t1;
+set global concurrent_insert=@save_concurrent_insert;

mysql-test/t/ps_1general.test

@@ -833,7 +833,7 @@ execute stmt1 ;
 --disable_metadata
 --horizontal_results
 
-drop table t5 ;
+drop table t5, t9;
 
 ##### RULES OF THUMB TO PRESERVE THE SYSTEMATICS OF THE PS TEST CASES #####
 #

mysql-test/t/variables.test

@@ -72,23 +72,20 @@ explain extended select @@IDENTITY,last_insert_id(), @@identity;
 
 set big_tables=OFF, big_tables=ON, big_tables=0, big_tables=1, big_tables="OFF", big_tables="ON";
 
-set global concurrent_insert=ON;
+set global concurrent_insert=2;
 show variables like 'concurrent_insert';
 set global concurrent_insert=1;
 show variables like 'concurrent_insert';
 set global concurrent_insert=0;
 show variables like 'concurrent_insert';
-set global concurrent_insert=OFF;
-show variables like 'concurrent_insert';
 set global concurrent_insert=DEFAULT;
-show variables like 'concurrent_insert';
+select @@concurrent_insert;
 
-set global timed_mutexes=1;
+set global timed_mutexes=ON;
 show variables like 'timed_mutexes';
 set global timed_mutexes=0;
 show variables like 'timed_mutexes';
 
-
 set storage_engine=MYISAM, storage_engine="HEAP", global storage_engine="MERGE";
 show local variables like 'storage_engine';
 show global variables like 'storage_engine';
@@ -174,8 +171,6 @@ set @@global.sql_auto_is_null=1;
 select @@global.sql_auto_is_null;
 --error 1229
 set myisam_max_sort_file_size=100;
---error 1229
-set myisam_max_extra_sort_file_size=100;
 --error 1231
 set @@SQL_WARNINGS=NULL;
 
@@ -222,9 +217,6 @@ set max_tmp_tables=100;
 set global max_user_connections=100;
 select @@max_user_connections;
 set global max_write_lock_count=100;
-set global myisam_max_extra_sort_file_size=100;
-select @@myisam_max_extra_sort_file_size;
-set global myisam_max_sort_file_size=100;
 set myisam_sort_buffer_size=100;
 set net_buffer_length=100;
 set net_read_timeout=100;

mysql-test/t/view.test

 --disable_warnings
-drop table if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
+drop table if exists t1,t2,t9,`t1a``b`,v1,v2,v3,v4,v5,v6;
 drop view if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
 drop database if exists mysqltest;
 --enable_warnings

mysys/thr_lock.c

@@ -409,7 +409,7 @@ static my_bool wait_for_lock(struct st_lock_list *wait, THR_LOCK_DATA *data,
     result=0;
     statistic_increment(locks_waited, &THR_LOCK_lock);
     if (data->lock->get_status)
-      (*data->lock->get_status)(data->status_param);
+      (*data->lock->get_status)(data->status_param, 0);
     check_locks(data->lock,"got wait_for_lock",0);
   }
   pthread_mutex_unlock(&data->lock->mutex);
@@ -468,7 +468,7 @@ int thr_lock(THR_LOCK_DATA *data,enum thr_lock_type lock_type)
 	  lock->read_no_write_count++;
 	check_locks(lock,"read lock with old write lock",0);
 	if (lock->get_status)
-	  (*lock->get_status)(data->status_param);
+	  (*lock->get_status)(data->status_param, 0);
 	statistic_increment(locks_immediate,&THR_LOCK_lock);
 	goto end;
       }
@@ -489,7 +489,7 @@ int thr_lock(THR_LOCK_DATA *data,enum thr_lock_type lock_type)
       data->prev=lock->read.last;
       lock->read.last= &data->next;
       if (lock->get_status)
-	(*lock->get_status)(data->status_param);
+	(*lock->get_status)(data->status_param, 0);
       if ((int) lock_type == (int) TL_READ_NO_INSERT)
 	lock->read_no_write_count++;
       check_locks(lock,"read lock with no write locks",0);
@@ -567,7 +567,7 @@ int thr_lock(THR_LOCK_DATA *data,enum thr_lock_type lock_type)
 	lock->write.last= &data->next;
 	check_locks(lock,"second write lock",0);
 	if (data->lock->get_status)
-	  (*data->lock->get_status)(data->status_param);
+	  (*data->lock->get_status)(data->status_param, 0);
 	statistic_increment(locks_immediate,&THR_LOCK_lock);
 	goto end;
       }
@@ -580,9 +580,16 @@ int thr_lock(THR_LOCK_DATA *data,enum thr_lock_type lock_type)
                           (ulong) lock->write_wait.data));
       if (!lock->write_wait.data)
       {						/* no scheduled write locks */
-	if (lock_type == TL_WRITE_CONCURRENT_INSERT &&
-	    (*lock->check_status)(data->status_param))
+        my_bool concurrent_insert= 0;
+	if (lock_type == TL_WRITE_CONCURRENT_INSERT)
+        {
+          concurrent_insert= 1;
+          if ((*lock->check_status)(data->status_param))
+          {
+            concurrent_insert= 0;
             data->type=lock_type= thr_upgraded_concurrent_insert_lock;
+          }
+        }
 
 	if (!lock->read.data ||
 	    (lock_type <= TL_WRITE_DELAYED &&
@@ -594,7 +601,7 @@ int thr_lock(THR_LOCK_DATA *data,enum thr_lock_type lock_type)
 	  data->prev=lock->write.last;
 	  lock->write.last= &data->next;
 	  if (data->lock->get_status)
-	    (*data->lock->get_status)(data->status_param);
+	    (*data->lock->get_status)(data->status_param, concurrent_insert);
 	  check_locks(lock,"only write lock",0);
 	  statistic_increment(locks_immediate,&THR_LOCK_lock);
 	  goto end;
@@ -1033,7 +1040,7 @@ my_bool thr_upgrade_write_delay_lock(THR_LOCK_DATA *data)
     if (!lock->read.data)			/* No read locks */
     {						/* We have the lock */
       if (data->lock->get_status)
-	(*data->lock->get_status)(data->status_param);
+	(*data->lock->get_status)(data->status_param, 0);
       pthread_mutex_unlock(&lock->mutex);
       DBUG_RETURN(0);
     }
@@ -1221,7 +1228,8 @@ static ulong sum=0;
 
 /* The following functions is for WRITE_CONCURRENT_INSERT */
 
-static void test_get_status(void* param __attribute__((unused)))
+static void test_get_status(void* param __attribute__((unused)),
+                            int concurrent_insert __attribute__((unused)))
 {
 }
 

sql/mysqld.cc

@@ -4389,9 +4389,9 @@ Disable with --skip-bdb (will save memory).",
    (gptr*) &max_system_variables.completion_type, 0, GET_ULONG,
    REQUIRED_ARG, 0, 0, 2, 0, 1, 0},
   {"concurrent-insert", OPT_CONCURRENT_INSERT,
-   "Use concurrent insert with MyISAM. Disable with --skip-concurrent-insert.",
+   "Use concurrent insert with MyISAM. Disable with --concurrent-insert=0",
    (gptr*) &myisam_concurrent_insert, (gptr*) &myisam_concurrent_insert,
-   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
+   0, GET_LONG, OPT_ARG, 1, 0, 2, 0, 0, 0},
   {"console", OPT_CONSOLE, "Write error output on screen; Don't remove the console window on windows.",
    (gptr*) &opt_console, (gptr*) &opt_console, 0, GET_BOOL, NO_ARG, 0, 0, 0,
    0, 0, 0},
@@ -5332,9 +5332,9 @@ The minimum value for this variable is 4096.",
    "Default pointer size to be used for MyISAM tables.",
    (gptr*) &myisam_data_pointer_size,
    (gptr*) &myisam_data_pointer_size, 0, GET_ULONG, REQUIRED_ARG,
-   4, 2, 8, 0, 1, 0},
+   6, 2, 8, 0, 1, 0},
   {"myisam_max_extra_sort_file_size", OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
-   "Used to help MySQL to decide when to use the slow but safe key cache index create method.",
+   "Depricated option",
    (gptr*) &global_system_variables.myisam_max_extra_sort_file_size,
    (gptr*) &max_system_variables.myisam_max_extra_sort_file_size,
    0, GET_ULL, REQUIRED_ARG, (ulonglong) MI_MAX_TEMP_LENGTH,
@@ -5870,7 +5870,8 @@ static void mysql_init_variables(void)
   /* Things reset to zero */
   opt_skip_slave_start= opt_reckless_slave = 0;
   mysql_home[0]= pidfile_name[0]= log_error_file[0]= 0;
-  opt_log= opt_update_log= opt_bin_log= opt_slow_log= 0;
+  opt_log= opt_update_log= opt_slow_log= 0;
+  opt_bin_log= 1;                               // Enable binlog by default
   opt_disable_networking= opt_skip_show_db=0;
   opt_logname= opt_update_logname= opt_binlog_index_name= opt_slow_logname= 0;
   opt_tc_log_file= (char *)"tc.log";      // no hostname in tc_log file name !
@@ -6170,7 +6171,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     opt_update_log=1;
     break;
   case (int) OPT_BIN_LOG:
-    opt_bin_log=1;
+    opt_bin_log= test(argument != disabled_my_option);
     break;
   case (int) OPT_ERROR_LOG_FILE:
     opt_error_log= 1;
@@ -6570,6 +6571,13 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     ha_open_options|=HA_OPEN_ABORT_IF_CRASHED;
     break;
   }
+  case OPT_CONCURRENT_INSERT:
+    /* The following code is mainly here to emulate old behavior */
+    if (!argument)                      /* --concurrent-insert */
+      myisam_concurrent_insert= 1;
+    else if (argument == disabled_my_option)
+      myisam_concurrent_insert= 0;      /* --skip-concurrent-insert */
+    break;
   case OPT_TC_HEURISTIC_RECOVER:
   {
     if ((tc_heuristic_recover=find_type(argument,
@@ -6747,8 +6755,6 @@ static void get_options(int argc,char **argv)
   my_default_record_cache_size=global_system_variables.read_buff_size;
   myisam_max_temp_length=
     (my_off_t) global_system_variables.myisam_max_sort_file_size;
-  myisam_max_extra_temp_length=
-    (my_off_t) global_system_variables.myisam_max_extra_sort_file_size;
 
   /* Set global variables based on startup options */
   myisam_block_size=(uint) 1 << my_bit_log2(opt_myisam_block_size);

sql/set_var.cc

@@ -108,7 +108,6 @@ static void fix_net_retry_count(THD *thd, enum_var_type type);
 static void fix_max_join_size(THD *thd, enum_var_type type);
 static void fix_query_cache_size(THD *thd, enum_var_type type);
 static void fix_query_cache_min_res_unit(THD *thd, enum_var_type type);
-static void fix_myisam_max_extra_sort_file_size(THD *thd, enum_var_type type);
 static void fix_myisam_max_sort_file_size(THD *thd, enum_var_type type);
 static void fix_max_binlog_size(THD *thd, enum_var_type type);
 static void fix_max_relay_log_size(THD *thd, enum_var_type type);
@@ -158,7 +157,7 @@ sys_var_thd_ulong	sys_completion_type("completion_type",
 sys_var_collation_connection sys_collation_connection("collation_connection");
 sys_var_collation_database sys_collation_database("collation_database");
 sys_var_collation_server sys_collation_server("collation_server");
-sys_var_bool_ptr	sys_concurrent_insert("concurrent_insert",
+sys_var_long_ptr	sys_concurrent_insert("concurrent_insert",
                                               &myisam_concurrent_insert);
 sys_var_long_ptr	sys_connect_timeout("connect_timeout",
 					    &connect_timeout);
@@ -270,7 +269,6 @@ sys_var_thd_ulong       sys_multi_range_count("multi_range_count",
                                               &SV::multi_range_count);
 sys_var_long_ptr	sys_myisam_data_pointer_size("myisam_data_pointer_size",
                                                     &myisam_data_pointer_size);
-sys_var_thd_ulonglong	sys_myisam_max_extra_sort_file_size("myisam_max_extra_sort_file_size", &SV::myisam_max_extra_sort_file_size, fix_myisam_max_extra_sort_file_size, 1);
 sys_var_thd_ulonglong	sys_myisam_max_sort_file_size("myisam_max_sort_file_size", &SV::myisam_max_sort_file_size, fix_myisam_max_sort_file_size, 1);
 sys_var_thd_ulong       sys_myisam_repair_threads("myisam_repair_threads", &SV::myisam_repair_threads);
 sys_var_thd_ulong	sys_myisam_sort_buffer_size("myisam_sort_buffer_size", &SV::myisam_sort_buff_size);
@@ -623,7 +621,6 @@ sys_var *sys_variables[]=
   &sys_max_write_lock_count,
   &sys_multi_range_count,
   &sys_myisam_data_pointer_size,
-  &sys_myisam_max_extra_sort_file_size,
   &sys_myisam_max_sort_file_size,
   &sys_myisam_repair_threads,
   &sys_myisam_sort_buffer_size,
@@ -882,9 +879,6 @@ struct show_var_st init_vars[]= {
   {sys_max_write_lock_count.name, (char*) &sys_max_write_lock_count,SHOW_SYS},
   {sys_multi_range_count.name,  (char*) &sys_multi_range_count,     SHOW_SYS},
   {sys_myisam_data_pointer_size.name, (char*) &sys_myisam_data_pointer_size, SHOW_SYS},
-  {sys_myisam_max_extra_sort_file_size.name,
-   (char*) &sys_myisam_max_extra_sort_file_size,
-   SHOW_SYS},
   {sys_myisam_max_sort_file_size.name, (char*) &sys_myisam_max_sort_file_size,
    SHOW_SYS},
   {"myisam_recover_options",  (char*) &myisam_recover_options_str,  SHOW_CHAR_PTR},
@@ -1140,14 +1134,6 @@ static void fix_low_priority_updates(THD *thd, enum_var_type type)
 }
 
 
-static void
-fix_myisam_max_extra_sort_file_size(THD *thd, enum_var_type type)
-{
-  myisam_max_extra_temp_length=
-    (my_off_t) global_system_variables.myisam_max_extra_sort_file_size;
-}
-
-
 static void
 fix_myisam_max_sort_file_size(THD *thd, enum_var_type type)
 {