bzr commit into mysql-6.0 branch (sergefp:2804)

[Sergey Petrunia]

#At file:///home/spetrunia/dev/mysql-6.0-bugteam/

 2804 Sergey Petrunia	2008-08-25 [merge]
      Merge 5.1-opt -> 6.0-opt
modified:
  mysql-test/r/myisam.result
  mysql-test/t/myisam.test
  sql/opt_range.cc
  storage/myisam/mi_create.c

=== modified file 'mysql-test/r/myisam.result'
--- a/mysql-test/r/myisam.result	2008-06-17 20:04:19 +0000
+++ b/mysql-test/r/myisam.result	2008-08-25 18:23:27 +0000
@@ -1848,6 +1848,28 @@ checksum table t3;
 Table	Checksum
 test.t3	326284887
 drop table t1,t2,t3;
+CREATE TABLE t1 (a INT) ENGINE=MyISAM CHECKSUM=1 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES (0);
+UPDATE t1 SET a=1;
+SELECT a FROM t1;
+a
+1
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+INSERT INTO t1 VALUES (0), (5), (4), (2);
+UPDATE t1 SET a=2;
+SELECT a FROM t1;
+a
+2
+2
+2
+2
+2
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+DROP TABLE t1;
 End of 5.0 tests
 create table t1 (a int not null, key `a` (a) key_block_size=1024);
 show create table t1;

=== modified file 'mysql-test/t/myisam.test'
--- a/mysql-test/t/myisam.test	2008-06-17 20:04:19 +0000
+++ b/mysql-test/t/myisam.test	2008-08-25 18:23:27 +0000
@@ -1171,6 +1171,7 @@ SELECT * FROM t1;
 
 DROP TABLE t1, t2;
 
+
 #
 # Test of BUG#35570 CHECKSUM TABLE unreliable if LINESTRING field
 # (same content / differen checksum)
@@ -1186,6 +1187,20 @@ CREATE TABLE t3 select * from t1;
 checksum table t3;
 drop table t1,t2,t3;
 
+#
+# Bug#37310: 'on update CURRENT_TIMESTAMP' option crashes the table
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM CHECKSUM=1 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES (0);
+UPDATE t1 SET a=1;
+SELECT a FROM t1;
+CHECK TABLE t1;
+INSERT INTO t1 VALUES (0), (5), (4), (2);
+UPDATE t1 SET a=2;
+SELECT a FROM t1;
+CHECK TABLE t1;
+DROP TABLE t1; 
+
 --echo End of 5.0 tests
 
 

=== modified file 'sql/opt_range.cc'
--- a/sql/opt_range.cc	2008-07-25 15:10:14 +0000
+++ b/sql/opt_range.cc	2008-08-25 18:23:27 +0000
@@ -8712,7 +8712,10 @@ QUICK_SELECT_DESC::QUICK_SELECT_DESC(QUI
   used_key_parts (used_key_parts_arg)
 {
   QUICK_RANGE *r;
-  /* Reverse MRR scans are currently not supported */
+  /* 
+    Use default MRR implementation for reverse scans. No table engine
+    currently can do an MRR scan with output in reverse index order.
+  */
   mrr_buf_desc= NULL;
   mrr_flags |= HA_MRR_USE_DEFAULT_IMPL;
   mrr_buf_size= 0;

=== modified file 'storage/myisam/mi_create.c'
--- a/storage/myisam/mi_create.c	2008-07-09 07:12:43 +0000
+++ b/storage/myisam/mi_create.c	2008-08-25 18:23:27 +0000
@@ -200,7 +200,7 @@ int mi_create(const char *name,uint keys
   pack_bytes= (packed+7)/8;
   if (pack_reclength != INT_MAX32)
     pack_reclength+= reclength+packed +
-      test(test_all_bits(options, HA_OPTION_CHECKSUM | HA_PACK_RECORD));
+      test(test_all_bits(options, HA_OPTION_CHECKSUM | HA_OPTION_PACK_RECORD));
   min_pack_length+= pack_bytes;
 
   if (!ci->data_file_length && ci->max_rows)
@@ -863,7 +863,7 @@ err_no_lock:
     (void) my_close(dfile,MYF(0));
     /* fall through */
   case 2:
-    /* QQ: T�nu should add a call to my_raid_delete() here */
+    /* QQ: T���nu should add a call to my_raid_delete() here */
   if (! (flags & HA_DONT_TOUCH_DATA))
     my_delete_with_symlink(fn_format(filename,name,"",MI_NAME_DEXT,
                                      MY_UNPACK_FILENAME | MY_APPEND_EXT),