Merge svojtovich@bk-internal.mysql.com:/home/bk/mysql-4.1-build

into  mysql.com:/home/svoj/devel/mysql/merge/mysql-4.1-engines

myisam/mi_rkey.c

@@ -50,7 +50,7 @@ int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key, uint key_len,
     key_buff=info->lastkey+info->s->base.max_key_length;
     pack_key_length= key_len;
     bmove(key_buff,key,key_len);
-    last_used_keyseg= 0;
+    last_used_keyseg= info->s->keyinfo[inx].seg + info->last_used_keyseg;
   }
   else
   {
@@ -62,6 +62,8 @@ int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key, uint key_len,
 				 key_len, &last_used_keyseg);
     /* Save packed_key_length for use by the MERGE engine. */
     info->pack_key_length= pack_key_length;
+    info->last_used_keyseg= (uint16) (last_used_keyseg -
+                                      info->s->keyinfo[inx].seg);
     DBUG_EXECUTE("key",_mi_print_key(DBUG_FILE, keyinfo->seg,
 				     key_buff, pack_key_length););
   }

myisam/myisamdef.h

@@ -263,6 +263,7 @@ struct st_myisam_info {
   enum ha_rkey_function last_key_func;  /* CONTAIN, OVERLAP, etc */
   uint  save_lastkey_length;
   uint  pack_key_length;                /* For MYISAMMRG */
+  uint16 last_used_keyseg;              /* For MyISAMMRG */
   int	errkey;				/* Got last error on this key */
   int   lock_type;			/* How database was locked */
   int   tmp_lock_type;			/* When locked by readinfo */

myisammrg/myrg_rkey.c

@@ -41,12 +41,14 @@ int myrg_rkey(MYRG_INFO *info,byte *buf,int inx, const byte *key,
 {
   byte *key_buff;
   uint pack_key_length;
+  uint16 last_used_keyseg;
   MYRG_TABLE *table;
   MI_INFO *mi;
   int err;
   DBUG_ENTER("myrg_rkey");
   LINT_INIT(key_buff);
   LINT_INIT(pack_key_length);
+  LINT_INIT(last_used_keyseg);
 
   if (_myrg_init_queue(info,inx,search_flag))
     DBUG_RETURN(my_errno);
@@ -61,10 +63,12 @@ int myrg_rkey(MYRG_INFO *info,byte *buf,int inx, const byte *key,
       /* Get the saved packed key and packed key length. */
       key_buff=(byte*) mi->lastkey+mi->s->base.max_key_length;
       pack_key_length=mi->pack_key_length;
+      last_used_keyseg= mi->last_used_keyseg;
     }
     else
     {
       mi->once_flags|= USE_PACKED_KEYS;
+      mi->last_used_keyseg= last_used_keyseg;
       err=mi_rkey(mi,0,inx,key_buff,pack_key_length,search_flag);
     }
     info->last_used_table=table+1;

mysql-test/r/fulltext.result

@@ -447,3 +447,10 @@ a	MATCH(a) AGAINST('test1 test')
 test1	0.68526661396027
 DEALLOCATE PREPARE stmt;
 DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(255), FULLTEXT(a));
+SELECT * FROM t1 IGNORE INDEX(a) WHERE MATCH(a) AGAINST('test');
+a
+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;

mysql-test/r/merge.result

@@ -819,3 +819,14 @@ ALTER TABLE m1 ENGINE=MERGE UNION=(t1);
 SELECT * FROM m1;
 c1	c2	c3	c4	c5	c6	c7	c8	c9
 DROP TABLE t1, m1;
+CREATE TABLE t1 (a VARCHAR(255) CHARACTER SET latin1 COLLATE latin1_german2_ci,
+b INT, INDEX(a,b));
+CREATE TABLE t2 LIKE t1;
+CREATE TABLE t3 LIKE t1;
+ALTER TABLE t3 ENGINE=MERGE UNION=(t1,t2);
+INSERT INTO t1 VALUES ('ss',1);
+INSERT INTO t2 VALUES ('ss',2),(0xDF,2);
+SELECT COUNT(*) FROM t3 WHERE a=0xDF AND b=2;
+COUNT(*)
+2
+DROP TABLE t1,t2,t3;

mysql-test/t/fulltext.test

@@ -369,4 +369,14 @@ EXECUTE stmt;
 DEALLOCATE PREPARE stmt;
 DROP TABLE t1;
 
+#
+# BUG#25951 - ignore/use index does not work with fulltext
+#
+CREATE TABLE t1 (a VARCHAR(255), FULLTEXT(a));
+SELECT * FROM t1 IGNORE INDEX(a) WHERE MATCH(a) AGAINST('test');
+ALTER TABLE t1 DISABLE KEYS;
+--error 1191
+SELECT * FROM t1 WHERE MATCH(a) AGAINST('test');
+DROP TABLE t1;
+
 # End of 4.1 tests

mysql-test/t/merge.test

@@ -454,4 +454,17 @@ ALTER TABLE m1 ENGINE=MERGE UNION=(t1);
 SELECT * FROM m1;
 DROP TABLE t1, m1;
 
+#
+# BUG#24342 - Incorrect results with query over MERGE table
+#
+CREATE TABLE t1 (a VARCHAR(255) CHARACTER SET latin1 COLLATE latin1_german2_ci,
+                 b INT, INDEX(a,b));
+CREATE TABLE t2 LIKE t1;
+CREATE TABLE t3 LIKE t1;
+ALTER TABLE t3 ENGINE=MERGE UNION=(t1,t2);
+INSERT INTO t1 VALUES ('ss',1);
+INSERT INTO t2 VALUES ('ss',2),(0xDF,2);
+SELECT COUNT(*) FROM t3 WHERE a=0xDF AND b=2;
+DROP TABLE t1,t2,t3;
+
 # End of 4.1 tests

sql/item_func.cc

@@ -3158,7 +3158,7 @@ bool Item_func_match::fix_index()
   for (keynr=0 ; keynr < table->keys ; keynr++)
   {
     if ((table->key_info[keynr].flags & HA_FULLTEXT) &&
-        (table->keys_in_use_for_query.is_set(keynr)))
+        (table->keys_in_use.is_set(keynr)))
     {
       ft_to_key[fts]=keynr;
       ft_cnt[fts]=0;