Merge ppcg5.local:/Users/antony/Work/p2-bug25800.6

into  ppcg5.local:/Users/antony/Work/p2-bug25800.6.merge

include/keycache.h

@@ -47,7 +47,6 @@ typedef struct st_key_cache
   my_bool in_resize;             /* true during resize operation             */
   my_bool resize_in_flush;       /* true during flush of resize operation    */
   my_bool can_be_used;           /* usage of cache for read/write is allowed */
-  uint key_cache_shift;
   ulong key_cache_mem_size;      /* specified size of the cache memory       */
   uint key_cache_block_size;     /* size of the page buffer of a cache block */
   ulong min_warm_blocks;         /* min number of warm blocks;               */

mysql-test/r/backup.result

@@ -4,28 +4,24 @@ create table t4(n int);
 backup table t4 to '../bogus';
 Table	Op	Msg_type	Msg_text
 test.t4	backup	error	Failed copying .frm file (errno: X)
+test.t4	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
+test.t4	backup	Error	Can't create/write to file 'MYSQLTEST_VARDIR/bogus/t4.frm' (Errcode: X)
 test.t4	backup	status	Operation failed
-Warnings:
-Warning	1543	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
-Error	1	Can't create/write to file 'MYSQLTEST_VARDIR/bogus/t4.frm' (Errcode: X)
 backup table t4 to '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t4	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t4	backup	status	OK
-Warnings:
-Warning	1543	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 backup table t4 to '../tmp';
 Table	Op	Msg_type	Msg_text
 test.t4	backup	error	Failed copying .frm file (errno: X)
+test.t4	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
+test.t4	backup	Error	Can't create/write to file 'MYSQLTEST_VARDIR/tmp/t4.frm' (Errcode: X)
 test.t4	backup	status	Operation failed
-Warnings:
-Warning	1543	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
-Error	1	Can't create/write to file 'MYSQLTEST_VARDIR/tmp/t4.frm' (Errcode: X)
 drop table t4;
 restore table t4 from '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t4	restore	Warning	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t4	restore	status	OK
-Warnings:
-Warning	1543	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 select count(*) from t4;
 count(*)
 0
@@ -33,9 +29,8 @@ create table t1(n int);
 insert into t1 values (23),(45),(67);
 backup table t1 to '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t1	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t1	backup	status	OK
-Warnings:
-Warning	1543	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 drop table t1;
 restore table t1 from '../bogus';
 Table	Op	Msg_type	Msg_text
@@ -45,9 +40,8 @@ Warning	1543	The syntax 'RESTORE TABLE' is deprecated and will be removed in MyS
 Error	29	File 'MYSQLTEST_VARDIR/bogus/t1.frm' not found (Errcode: X)
 restore table t1 from '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t1	restore	Warning	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t1	restore	status	OK
-Warnings:
-Warning	1543	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 select n from t1;
 n
 23
@@ -59,18 +53,16 @@ insert into t2 values (123),(145),(167);
 insert into t3 values (223),(245),(267);
 backup table t2,t3 to '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t2	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t2	backup	status	OK
 test.t3	backup	status	OK
-Warnings:
-Warning	1543	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 drop table t1,t2,t3;
 restore table t1,t2,t3 from '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t1	restore	Warning	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t1	restore	status	OK
 test.t2	restore	status	OK
 test.t3	restore	status	OK
-Warnings:
-Warning	1543	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 select n from t1;
 n
 23
@@ -89,32 +81,28 @@ k
 drop table t1,t2,t3,t4;
 restore table t1 from '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t1	restore	Warning	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t1	restore	status	OK
-Warnings:
-Warning	1543	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 rename table t1 to t5;
 lock tables t5 write;
 backup table t5 to '../tmp';
 unlock tables;
 Table	Op	Msg_type	Msg_text
+test.t5	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t5	backup	status	OK
-Warnings:
-Warning	1543	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 drop table t5;
 DROP TABLE IF EXISTS `t+1`;
 CREATE  TABLE `t+1` (c1 INT);
 INSERT  INTO  `t+1` VALUES (1), (2), (3);
 BACKUP  TABLE `t+1` TO '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t+1	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t+1	backup	status	OK
-Warnings:
-Warning	1543	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 DROP    TABLE `t+1`;
 RESTORE TABLE `t+1` FROM '../tmp';
 Table	Op	Msg_type	Msg_text
+test.t+1	restore	Warning	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t+1	restore	status	OK
-Warnings:
-Warning	1543	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 SELECT * FROM `t+1`;
 c1
 1

mysql-test/r/key_cache.result

@@ -191,10 +191,8 @@ cache index t1 in unknown_key_cache;
 ERROR HY000: Unknown key cache 'unknown_key_cache'
 cache index t1 key (unknown_key) in keycache1;
 Table	Op	Msg_type	Msg_text
-test.t1	assign_to_keycache	error	Key 'unknown_key' doesn't exist in table 't1'
+test.t1	assign_to_keycache	Error	Key 'unknown_key' doesn't exist in table 't1'
 test.t1	assign_to_keycache	status	Operation failed
-Warnings:
-Error	1176	Key 'unknown_key' doesn't exist in table 't1'
 select @@keycache2.key_buffer_size;
 @@keycache2.key_buffer_size
 4194304
@@ -341,3 +339,30 @@ Warning	1438	Cannot drop default keycache
 select @@global.key_buffer_size;
 @@global.key_buffer_size
 2097152
+SET @bug28478_key_cache_block_size= @@global.key_cache_block_size;
+SET GLOBAL key_cache_block_size= 1536;
+CREATE TABLE t1 (
+id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
+c1 CHAR(150),
+c2 CHAR(150),
+c3 CHAR(150),
+KEY(c1, c2, c3)
+) ENGINE= MyISAM;
+INSERT INTO t1 (c1, c2, c3) VALUES
+('a', 'b', 'c'), ('b', 'c', 'd'), ('c', 'd', 'e'), ('d', 'e', 'f'),
+('e', 'f', 'g'), ('f', 'g', 'h'), ('g', 'h', 'i'), ('h', 'i', 'j'),
+('i', 'j', 'k'), ('j', 'k', 'l'), ('k', 'l', 'm'), ('l', 'm', 'n'),
+('m', 'n', 'o'), ('n', 'o', 'p'), ('o', 'p', 'q'), ('p', 'q', 'r'),
+('q', 'r', 's'), ('r', 's', 't'), ('s', 't', 'u'), ('t', 'u', 'v'),
+('u', 'v', 'w'), ('v', 'w', 'x'), ('w', 'x', 'y'), ('x', 'y', 'z');
+INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
+INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
+INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+SHOW VARIABLES LIKE 'key_cache_block_size';
+Variable_name	Value
+key_cache_block_size	1536
+SET GLOBAL key_cache_block_size= @bug28478_key_cache_block_size;
+DROP TABLE t1;

mysql-test/r/lock.result

@@ -40,7 +40,8 @@ test.t1	check	status	OK
 lock tables t1 write;
 check table t2;
 Table	Op	Msg_type	Msg_text
-test.t2	check	error	Table 't2' was not locked with LOCK TABLES
+test.t2	check	Error	Table 't2' was not locked with LOCK TABLES
+test.t2	check	error	Corrupt
 insert into t1 select index1,nr from t1;
 ERROR HY000: Table 't1' was not locked with LOCK TABLES
 unlock tables;

mysql-test/r/merge.result

@@ -847,4 +847,36 @@ insert into t1 values (1);
 ERROR HY000: Table 't1' is read only
 drop table t2;
 drop table t1;
+CREATE TABLE tm1(a INT) ENGINE=MERGE UNION=(t1, t2);
+SELECT * FROM tm1;
+ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
+CHECK TABLE tm1;
+Table	Op	Msg_type	Msg_text
+test.tm1	check	Error	Table 'test.t1' is differently defined or of non-MyISAM type or doesn't exist
+test.tm1	check	Error	Table 'test.t2' is differently defined or of non-MyISAM type or doesn't exist
+test.tm1	check	Error	Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
+test.tm1	check	error	Corrupt
+CREATE TABLE t1(a INT);
+SELECT * FROM tm1;
+ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
+CHECK TABLE tm1;
+Table	Op	Msg_type	Msg_text
+test.tm1	check	Error	Table 'test.t2' is differently defined or of non-MyISAM type or doesn't exist
+test.tm1	check	Error	Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
+test.tm1	check	error	Corrupt
+CREATE TABLE t2(a BLOB);
+SELECT * FROM tm1;
+ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
+CHECK TABLE tm1;
+Table	Op	Msg_type	Msg_text
+test.tm1	check	Error	Table 'test.t2' is differently defined or of non-MyISAM type or doesn't exist
+test.tm1	check	Error	Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
+test.tm1	check	error	Corrupt
+ALTER TABLE t2 MODIFY a INT;
+SELECT * FROM tm1;
+a
+CHECK TABLE tm1;
+Table	Op	Msg_type	Msg_text
+test.tm1	check	status	OK
+DROP TABLE tm1, t1, t2;
 End of 5.0 tests

mysql-test/r/preload.result

@@ -143,10 +143,9 @@ Key_read_requests	0
 Key_reads	0
 load index into cache t3, t2 key (primary,b) ;
 Table	Op	Msg_type	Msg_text
-test.t3	preload_keys	error	Table 'test.t3' doesn't exist
+test.t3	preload_keys	Error	Table 'test.t3' doesn't exist
+test.t3	preload_keys	error	Corrupt
 test.t2	preload_keys	status	OK
-Warnings:
-Error	1146	Table 'test.t3' doesn't exist
 show status like "key_read%";
 Variable_name	Value
 Key_read_requests	478
@@ -159,12 +158,10 @@ Key_read_requests	0
 Key_reads	0
 load index into cache t3 key (b), t2 key (c) ;
 Table	Op	Msg_type	Msg_text
-test.t3	preload_keys	error	Table 'test.t3' doesn't exist
-test.t2	preload_keys	error	Key 'c' doesn't exist in table 't2'
+test.t3	preload_keys	Error	Table 'test.t3' doesn't exist
+test.t3	preload_keys	error	Corrupt
+test.t2	preload_keys	Error	Key 'c' doesn't exist in table 't2'
 test.t2	preload_keys	status	Operation failed
-Warnings:
-Error	1146	Table 'test.t3' doesn't exist
-Error	1176	Key 'c' doesn't exist in table 't2'
 show status like "key_read%";
 Variable_name	Value
 Key_read_requests	0

mysql-test/r/ps.result

@@ -1386,45 +1386,39 @@ prepare stmt from "repair table t1, t4, t3";
 execute stmt;
 Table	Op	Msg_type	Msg_text
 test.t1	repair	status	OK
-test.t4	repair	error	Table 'test.t4' doesn't exist
+test.t4	repair	Error	Table 'test.t4' doesn't exist
+test.t4	repair	error	Corrupt
 test.t3	repair	status	OK
-Warnings:
-Error	1146	Table 'test.t4' doesn't exist
 execute stmt;
 Table	Op	Msg_type	Msg_text
 test.t1	repair	status	OK
-test.t4	repair	error	Table 'test.t4' doesn't exist
+test.t4	repair	Error	Table 'test.t4' doesn't exist
+test.t4	repair	error	Corrupt
 test.t3	repair	status	OK
-Warnings:
-Error	1146	Table 'test.t4' doesn't exist
 prepare stmt from "optimize table t1, t3, t4";
 execute stmt;
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	OK
 test.t3	optimize	status	OK
-test.t4	optimize	error	Table 'test.t4' doesn't exist
-Warnings:
-Error	1146	Table 'test.t4' doesn't exist
+test.t4	optimize	Error	Table 'test.t4' doesn't exist
+test.t4	optimize	error	Corrupt
 execute stmt;
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	Table is already up to date
 test.t3	optimize	status	Table is already up to date
-test.t4	optimize	error	Table 'test.t4' doesn't exist
-Warnings:
-Error	1146	Table 'test.t4' doesn't exist
+test.t4	optimize	Error	Table 'test.t4' doesn't exist
+test.t4	optimize	error	Corrupt
 prepare stmt from "analyze table t4, t1";
 execute stmt;
 Table	Op	Msg_type	Msg_text
-test.t4	analyze	error	Table 'test.t4' doesn't exist
+test.t4	analyze	Error	Table 'test.t4' doesn't exist
+test.t4	analyze	error	Corrupt
 test.t1	analyze	status	Table is already up to date
-Warnings:
-Error	1146	Table 'test.t4' doesn't exist
 execute stmt;
 Table	Op	Msg_type	Msg_text
-test.t4	analyze	error	Table 'test.t4' doesn't exist
+test.t4	analyze	Error	Table 'test.t4' doesn't exist
+test.t4	analyze	error	Corrupt
 test.t1	analyze	status	Table is already up to date
-Warnings:
-Error	1146	Table 'test.t4' doesn't exist
 deallocate prepare stmt;
 drop table t1, t2, t3;
 create database mysqltest_long_database_name_to_thrash_heap;

mysql-test/r/repair.result

@@ -26,16 +26,14 @@ t1	1	st_key	1	st	A	NULL	NULL	NULL	YES	BTREE	disabled
 drop table t1;
 repair table t1 use_frm;
 Table	Op	Msg_type	Msg_text
-test.t1	repair	error	Table 'test.t1' doesn't exist
-Warnings:
-Error	1146	Table 'test.t1' doesn't exist
+test.t1	repair	Error	Table 'test.t1' doesn't exist
+test.t1	repair	error	Corrupt
 create table t1 engine=myisam SELECT 1,"table 1";
 flush tables;
 repair table t1;
 Table	Op	Msg_type	Msg_text
-test.t1	repair	error	Incorrect file format 't1'
-Warnings:
-Error	130	Incorrect file format 't1'
+test.t1	repair	Error	Incorrect file format 't1'
+test.t1	repair	error	Corrupt
 repair table t1 use_frm;
 Table	Op	Msg_type	Msg_text
 test.t1	repair	warning	Number of rows changed from 0 to 1

mysql-test/r/rpl_failed_optimize.result

@@ -15,9 +15,8 @@ Warnings:
 Error	1205	Lock wait timeout exceeded; try restarting transaction
 OPTIMIZE TABLE non_existing;
 Table	Op	Msg_type	Msg_text
-test.non_existing	optimize	error	Table 'test.non_existing' doesn't exist
-Warnings:
-Error	1146	Table 'test.non_existing' doesn't exist
+test.non_existing	optimize	Error	Table 'test.non_existing' doesn't exist
+test.non_existing	optimize	error	Corrupt
 select * from t1;
 a
 1

mysql-test/r/show_check.result

@@ -752,4 +752,6 @@ Tables_in_test	Table_type
 été	BASE TABLE
 drop table `été`;
 set names latin1;
+show columns from `#mysql50#????????`;
+ERROR 42S02: Table 'test.#mysql50#????????' doesn't exist
 End of 5.1 tests

mysql-test/r/sp.result

@@ -4404,8 +4404,10 @@ call bug13012()|
 Table	Op	Msg_type	Msg_text
 test.t1	repair	status	OK
 Table	Op	Msg_type	Msg_text
+test.t1	backup	Warning	The syntax 'BACKUP TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t1	backup	status	OK
 Table	Op	Msg_type	Msg_text
+test.t1	restore	Warning	The syntax 'RESTORE TABLE' is deprecated and will be removed in MySQL 5.2. Please use MySQL Administrator (mysqldump, mysql) instead
 test.t1	restore	status	OK
 drop procedure bug13012|
 create view v1 as select * from t1|
@@ -4420,61 +4422,58 @@ Table	Op	Msg_type	Msg_text
 test.t1	repair	status	OK
 test.t2	repair	status	OK
 test.t3	repair	status	OK
-test.v1	repair	error	'test.v1' is not BASE TABLE
+test.v1	repair	Error	'test.v1' is not BASE TABLE
+test.v1	repair	error	Corrupt
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	OK
 test.t2	optimize	status	OK
 test.t3	optimize	status	OK
-test.v1	optimize	error	'test.v1' is not BASE TABLE
+test.v1	optimize	Error	'test.v1' is not BASE TABLE
+test.v1	optimize	error	Corrupt
 Table	Op	Msg_type	Msg_text
 test.t1	analyze	status	Table is already up to date
 test.t2	analyze	status	Table is already up to date
 test.t3	analyze	status	Table is already up to date
-test.v1	analyze	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
-Error	1347	'test.v1' is not BASE TABLE
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	analyze	Error	'test.v1' is not BASE TABLE
+test.v1	analyze	error	Corrupt
 call bug13012()|
 Table	Op	Msg_type	Msg_text
 test.t1	repair	status	OK
 test.t2	repair	status	OK
 test.t3	repair	status	OK
-test.v1	repair	error	'test.v1' is not BASE TABLE
+test.v1	repair	Error	'test.v1' is not BASE TABLE
+test.v1	repair	error	Corrupt
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	OK
 test.t2	optimize	status	OK
 test.t3	optimize	status	OK
-test.v1	optimize	error	'test.v1' is not BASE TABLE
+test.v1	optimize	Error	'test.v1' is not BASE TABLE
+test.v1	optimize	error	Corrupt
 Table	Op	Msg_type	Msg_text
 test.t1	analyze	status	Table is already up to date
 test.t2	analyze	status	Table is already up to date
 test.t3	analyze	status	Table is already up to date
-test.v1	analyze	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
-Error	1347	'test.v1' is not BASE TABLE
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	analyze	Error	'test.v1' is not BASE TABLE
+test.v1	analyze	error	Corrupt
 call bug13012()|
 Table	Op	Msg_type	Msg_text
 test.t1	repair	status	OK
 test.t2	repair	status	OK
 test.t3	repair	status	OK
-test.v1	repair	error	'test.v1' is not BASE TABLE
+test.v1	repair	Error	'test.v1' is not BASE TABLE
+test.v1	repair	error	Corrupt
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	OK
 test.t2	optimize	status	OK
 test.t3	optimize	status	OK
-test.v1	optimize	error	'test.v1' is not BASE TABLE
+test.v1	optimize	Error	'test.v1' is not BASE TABLE
+test.v1	optimize	error	Corrupt
 Table	Op	Msg_type	Msg_text
 test.t1	analyze	status	Table is already up to date
 test.t2	analyze	status	Table is already up to date
 test.t3	analyze	status	Table is already up to date
-test.v1	analyze	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
-Error	1347	'test.v1' is not BASE TABLE
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	analyze	Error	'test.v1' is not BASE TABLE
+test.v1	analyze	error	Corrupt
 drop procedure bug13012|
 drop view v1|
 select * from t1 order by data|

mysql-test/r/view.result

@@ -1378,7 +1378,9 @@ test.t1	check	status	OK
 drop table t1;
 check table v1;
 Table	Op	Msg_type	Msg_text
-test.v1	check	error	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v1	check	Error	Table 'test.t1' doesn't exist
+test.v1	check	Error	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v1	check	error	Corrupt
 drop view v1;
 create table t1 (a int);
 create table t2 (a int);
@@ -1902,11 +1904,17 @@ CREATE VIEW v6 AS SELECT CONVERT_TZ(col1,'GMT','MET') FROM t2;
 DROP TABLE t1;
 CHECK TABLE v1, v2, v3, v4, v5, v6;
 Table	Op	Msg_type	Msg_text
-test.v1	check	error	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v1	check	Error	Table 'test.t1' doesn't exist
+test.v1	check	Error	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v1	check	error	Corrupt
 test.v2	check	status	OK
-test.v3	check	error	View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v3	check	Error	Table 'test.t1' doesn't exist
+test.v3	check	Error	View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v3	check	error	Corrupt
 test.v4	check	status	OK
-test.v5	check	error	View 'test.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v5	check	Error	Table 'test.t1' doesn't exist
+test.v5	check	Error	View 'test.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v5	check	error	Corrupt
 test.v6	check	status	OK
 drop view v1, v2, v3, v4, v5, v6;
 drop table t2;
@@ -1926,11 +1934,17 @@ CREATE VIEW v6 AS SELECT f2() FROM t3;
 drop function f1;
 CHECK TABLE v1, v2, v3, v4, v5, v6;
 Table	Op	Msg_type	Msg_text
-test.v1	check	error	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v1	check	Error	FUNCTION test.f1 does not exist
+test.v1	check	Error	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v1	check	error	Corrupt
 test.v2	check	status	OK
-test.v3	check	error	View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v3	check	Error	FUNCTION test.f1 does not exist
+test.v3	check	Error	View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v3	check	error	Corrupt
 test.v4	check	status	OK
-test.v5	check	error	View 'test.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v5	check	Error	FUNCTION test.f1 does not exist
+test.v5	check	Error	View 'test.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+test.v5	check	error	Corrupt
 test.v6	check	status	OK
 create function f1 () returns int return (select max(col1) from t1);
 DROP TABLE t1;
@@ -2366,35 +2380,29 @@ CREATE TABLE t1(id INT);
 CREATE VIEW v1 AS SELECT id FROM t1;
 OPTIMIZE TABLE v1;
 Table	Op	Msg_type	Msg_text
-test.v1	optimize	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	optimize	Error	'test.v1' is not BASE TABLE
+test.v1	optimize	error	Corrupt
 ANALYZE TABLE v1;
 Table	Op	Msg_type	Msg_text
-test.v1	analyze	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	analyze	Error	'test.v1' is not BASE TABLE
+test.v1	analyze	error	Corrupt
 REPAIR TABLE v1;
 Table	Op	Msg_type	Msg_text
-test.v1	repair	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	repair	Error	'test.v1' is not BASE TABLE
+test.v1	repair	error	Corrupt
 DROP TABLE t1;
 OPTIMIZE TABLE v1;
 Table	Op	Msg_type	Msg_text
-test.v1	optimize	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	optimize	Error	'test.v1' is not BASE TABLE
+test.v1	optimize	error	Corrupt
 ANALYZE TABLE v1;
 Table	Op	Msg_type	Msg_text
-test.v1	analyze	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	analyze	Error	'test.v1' is not BASE TABLE
+test.v1	analyze	error	Corrupt
 REPAIR TABLE v1;
 Table	Op	Msg_type	Msg_text
-test.v1	repair	error	'test.v1' is not BASE TABLE
-Warnings:
-Error	1347	'test.v1' is not BASE TABLE
+test.v1	repair	Error	'test.v1' is not BASE TABLE
+test.v1	repair	error	Corrupt
 DROP VIEW v1;
 create definer = current_user() sql security invoker view v1 as select 1;
 show create view v1;

mysql-test/t/key_cache.test

@@ -219,4 +219,31 @@ set global key_cache_block_size= @my_key_cache_block_size;
 set @@global.key_buffer_size=0;
 select @@global.key_buffer_size;
 
+#
+# Bug#28478 - Improper key_cache_block_size corrupts MyISAM tables
+#
+SET @bug28478_key_cache_block_size= @@global.key_cache_block_size;
+SET GLOBAL key_cache_block_size= 1536;
+CREATE TABLE t1 (
+  id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  c1 CHAR(150),
+  c2 CHAR(150),
+  c3 CHAR(150),
+  KEY(c1, c2, c3)
+  ) ENGINE= MyISAM;
+INSERT INTO t1 (c1, c2, c3) VALUES
+  ('a', 'b', 'c'), ('b', 'c', 'd'), ('c', 'd', 'e'), ('d', 'e', 'f'),
+  ('e', 'f', 'g'), ('f', 'g', 'h'), ('g', 'h', 'i'), ('h', 'i', 'j'),
+  ('i', 'j', 'k'), ('j', 'k', 'l'), ('k', 'l', 'm'), ('l', 'm', 'n'),
+  ('m', 'n', 'o'), ('n', 'o', 'p'), ('o', 'p', 'q'), ('p', 'q', 'r'),
+  ('q', 'r', 's'), ('r', 's', 't'), ('s', 't', 'u'), ('t', 'u', 'v'),
+  ('u', 'v', 'w'), ('v', 'w', 'x'), ('w', 'x', 'y'), ('x', 'y', 'z');
+INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
+INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
+INSERT INTO t1 (c1, c2, c3) SELECT c1, c2, c3 from t1;
+CHECK TABLE t1;
+SHOW VARIABLES LIKE 'key_cache_block_size';
+SET GLOBAL key_cache_block_size= @bug28478_key_cache_block_size;
+DROP TABLE t1;
+
 # End of 4.1 tests

mysql-test/t/merge.test

@@ -490,4 +490,25 @@ insert into t1 values (1);
 drop table t2;
 drop table t1;
 
+#
+# BUG#26976 - Missing table in merge not noted in related error msg + SHOW
+#             CREATE TABLE fails
+#
+CREATE TABLE tm1(a INT) ENGINE=MERGE UNION=(t1, t2);
+--error 1168
+SELECT * FROM tm1;
+CHECK TABLE tm1;
+CREATE TABLE t1(a INT);
+--error 1168
+SELECT * FROM tm1;
+CHECK TABLE tm1;
+CREATE TABLE t2(a BLOB);
+--error 1168
+SELECT * FROM tm1;
+CHECK TABLE tm1;
+ALTER TABLE t2 MODIFY a INT;
+SELECT * FROM tm1;
+CHECK TABLE tm1;
+DROP TABLE tm1, t1, t2;
+
 --echo End of 5.0 tests

mysql-test/t/show_check.test

@@ -593,4 +593,10 @@ show full tables;
 drop table `été`;
 set names latin1;
 
+#
+# Bug#26402 Server crashes with old-style named table
+#
+--error ER_NO_SUCH_TABLE
+show columns from `#mysql50#????????`;
+
 --echo End of 5.1 tests

mysys/mf_keycache.c

@@ -234,7 +234,7 @@ static void test_key_cache(KEY_CACHE *keycache,
 #endif
 
 #define KEYCACHE_HASH(f, pos)                                                 \
-(((ulong) ((pos) >> keycache->key_cache_shift)+                               \
+(((ulong) ((pos) / keycache->key_cache_block_size) +                          \
                                      (ulong) (f)) & (keycache->hash_entries-1))
 #define FILE_HASH(f)                 ((uint) (f) & (CHANGED_BLOCKS_HASH-1))
 
@@ -402,7 +402,6 @@ int init_key_cache(KEY_CACHE *keycache, uint key_cache_block_size,
 
   keycache->key_cache_mem_size= use_mem;
   keycache->key_cache_block_size= key_cache_block_size;
-  keycache->key_cache_shift= my_bit_log2(key_cache_block_size);
   DBUG_PRINT("info", ("key_cache_block_size: %u",
 		      key_cache_block_size));
 
@@ -425,7 +424,7 @@ int init_key_cache(KEY_CACHE *keycache, uint key_cache_block_size,
 		       ALIGN_SIZE(hash_links * sizeof(HASH_LINK)) +
 		       ALIGN_SIZE(sizeof(HASH_LINK*) *
                                   keycache->hash_entries))) +
-	     ((ulong) blocks << keycache->key_cache_shift) > use_mem)
+	     ((ulong) blocks * keycache->key_cache_block_size) > use_mem)
         blocks--;
       /* Allocate memory for cache page buffers */
       if ((keycache->block_mem=
@@ -2561,7 +2560,7 @@ uchar *key_cache_read(KEY_CACHE *keycache,
     inc_counter_for_resize_op(keycache);
     locked_and_incremented= TRUE;
     /* Requested data may not always be aligned to cache blocks. */
-    offset= (uint) (filepos & (keycache->key_cache_block_size-1));
+    offset= (uint) (filepos % keycache->key_cache_block_size);
     /* Read data in key_cache_block_size increments */
     do
     {
@@ -2759,7 +2758,7 @@ int key_cache_insert(KEY_CACHE *keycache,
     inc_counter_for_resize_op(keycache);
     locked_and_incremented= TRUE;
     /* Loaded data may not always be aligned to cache blocks. */
-    offset= (uint) (filepos & (keycache->key_cache_block_size-1));
+    offset= (uint) (filepos % keycache->key_cache_block_size);
     /* Load data in key_cache_block_size increments. */
     do
     {
@@ -3033,7 +3032,7 @@ int key_cache_write(KEY_CACHE *keycache,
     inc_counter_for_resize_op(keycache);
     locked_and_incremented= TRUE;
     /* Requested data may not always be aligned to cache blocks. */
-    offset= (uint) (filepos & (keycache->key_cache_block_size-1));
+    offset= (uint) (filepos % keycache->key_cache_block_size);
     /* Write data in key_cache_block_size increments. */
     do
     {

mysys/my_seek.c

@@ -88,6 +88,7 @@ my_off_t my_tell(File fd, myf MyFlags __attribute__((unused)))
   os_off_t pos;
   DBUG_ENTER("my_tell");
   DBUG_PRINT("my",("Fd: %d  MyFlags: %d",fd, MyFlags));
+  DBUG_ASSERT(fd >= 0);
 #ifdef HAVE_TELL
   pos=tell(fd);
 #else

sql/lock.cc

@@ -197,6 +197,13 @@ MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **tables, uint count,
     }
     else if (rc == 1)                           /* aborted */
     {
+      /*
+        reset_lock_data is required here. If thr_multi_lock fails it
+        resets lock type for tables, which were locked before (and
+        including) one that caused error. Lock type for other tables
+        preserved.
+      */
+      reset_lock_data(sql_lock);
       thd->some_tables_deleted=1;		// Try again
       sql_lock->lock_count= 0;                  // Locks are already freed
     }

sql/mysql_priv.h

@@ -1920,6 +1920,10 @@ uint filename_to_tablename(const char *from, char *to, uint to_length);
 uint tablename_to_filename(const char *from, char *to, uint to_length);
 uint build_table_filename(char *buff, size_t bufflen, const char *db,
                           const char *table, const char *ext, uint flags);
+
+#define MYSQL50_TABLE_NAME_PREFIX         "#mysql50#"
+#define MYSQL50_TABLE_NAME_PREFIX_LENGTH  9
+
 /* Flags for conversion functions. */
 #define FN_FROM_IS_TMP  (1 << 0)
 #define FN_TO_IS_TMP    (1 << 1)

sql/mysqld.cc

@@ -5931,7 +5931,7 @@ log and this option does nothing anymore.",
    (uchar**) &dflt_key_cache_var.param_block_size,
    (uchar**) 0,
    0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG,
-   KEY_CACHE_BLOCK_SIZE , 512, 1024*16, MALLOC_OVERHEAD, 512, 0},
+   KEY_CACHE_BLOCK_SIZE, 512, 1024 * 16, 0, 512, 0},
   {"key_cache_division_limit", OPT_KEY_CACHE_DIVISION_LIMIT,
    "The minimum percentage of warm blocks in key cache",
    (uchar**) &dflt_key_cache_var.param_division_limit,

sql/set_var.cc

@@ -1500,6 +1500,25 @@ Item *sys_var::item(THD *thd, enum_var_type var_type, LEX_STRING *base)
     pthread_mutex_unlock(&LOCK_global_system_variables);
     return new Item_int(value,1);
   }
+  case SHOW_CHAR_PTR:
+  {
+    Item *tmp;
+    pthread_mutex_lock(&LOCK_global_system_variables);
+    char *str= *(char**) value_ptr(thd, var_type, base);
+    if (str)
+    {
+      uint length= strlen(str);
+      tmp= new Item_string(thd->strmake(str, length), length,
+                           system_charset_info, DERIVATION_SYSCONST);
+    }
+    else
+    {
+      tmp= new Item_null();
+      tmp->collation.set(system_charset_info, DERIVATION_SYSCONST);
+    }
+    pthread_mutex_unlock(&LOCK_global_system_variables);
+    return tmp;
+  }
   case SHOW_CHAR:
   {
     Item *tmp;

sql/share/errmsg.txt

@@ -6059,3 +6059,5 @@ ER_SLAVE_INCIDENT
         eng "The incident %s occured on the master. Message: %-.64s"
 ER_NO_PARTITION_FOR_GIVEN_VALUE_SILENT
         eng "Table has no partition for some existing values"
+ER_ADMIN_WRONG_MRG_TABLE
+	eng "Table '%-.64s' is differently defined or of non-MyISAM type or doesn't exist"

sql/sql_plugin.cc

@@ -283,7 +283,7 @@ static struct st_plugin_dl *plugin_dl_find(const LEX_STRING *dl)
   DBUG_ENTER("plugin_dl_find");
   for (i= 0; i < plugin_dl_array.elements; i++)
   {
-    tmp= dynamic_element(&plugin_dl_array, i, struct st_plugin_dl *);
+    tmp= *dynamic_element(&plugin_dl_array, i, struct st_plugin_dl **);
     if (tmp->ref_count &&
         ! my_strnncoll(files_charset_info,
                        (const uchar *)dl->str, dl->length,
@@ -301,17 +301,20 @@ static st_plugin_dl *plugin_dl_insert_or_reuse(struct st_plugin_dl *plugin_dl)
   DBUG_ENTER("plugin_dl_insert_or_reuse");
   for (i= 0; i < plugin_dl_array.elements; i++)
   {
-    tmp= dynamic_element(&plugin_dl_array, i, struct st_plugin_dl *);
+    tmp= *dynamic_element(&plugin_dl_array, i, struct st_plugin_dl **);
     if (! tmp->ref_count)
     {
       memcpy(tmp, plugin_dl, sizeof(struct st_plugin_dl));
       DBUG_RETURN(tmp);
     }
   }
-  if (insert_dynamic(&plugin_dl_array, (uchar*)plugin_dl))
+  if (insert_dynamic(&plugin_dl_array, (uchar*)&plugin_dl))
     DBUG_RETURN(0);
-  DBUG_RETURN(dynamic_element(&plugin_dl_array, plugin_dl_array.elements - 1,
-                              struct st_plugin_dl *));
+  tmp= *dynamic_element(&plugin_dl_array, plugin_dl_array.elements - 1,
+                        struct st_plugin_dl **)=
+      (struct st_plugin_dl *) memdup_root(&plugin_mem_root, (uchar*)plugin_dl,
+                                           sizeof(struct st_plugin_dl));
+  DBUG_RETURN(tmp);
 }
 #endif /* HAVE_DLOPEN */
 
@@ -521,8 +524,8 @@ static void plugin_dl_del(const LEX_STRING *dl)
 
   for (i= 0; i < plugin_dl_array.elements; i++)
   {
-    struct st_plugin_dl *tmp= dynamic_element(&plugin_dl_array, i,
-                                              struct st_plugin_dl *);
+    struct st_plugin_dl *tmp= *dynamic_element(&plugin_dl_array, i,
+                                               struct st_plugin_dl **);
     if (tmp->ref_count &&
         ! my_strnncoll(files_charset_info,
                        (const uchar *)dl->str, dl->length,
@@ -670,21 +673,24 @@ plugin_ref plugin_lock_by_name(THD *thd, const LEX_STRING *name, int type
 static st_plugin_int *plugin_insert_or_reuse(struct st_plugin_int *plugin)
 {
   uint i;
+  struct st_plugin_int *tmp;
   DBUG_ENTER("plugin_insert_or_reuse");
   for (i= 0; i < plugin_array.elements; i++)
   {
-    struct st_plugin_int *tmp= dynamic_element(&plugin_array, i,
-                                               struct st_plugin_int *);
+    tmp= *dynamic_element(&plugin_array, i, struct st_plugin_int **);
     if (tmp->state == PLUGIN_IS_FREED)
     {
       memcpy(tmp, plugin, sizeof(struct st_plugin_int));
       DBUG_RETURN(tmp);
     }
   }
-  if (insert_dynamic(&plugin_array, (uchar*)plugin))
+  if (insert_dynamic(&plugin_array, (uchar*)&plugin))
     DBUG_RETURN(0);
-  DBUG_RETURN(dynamic_element(&plugin_array, plugin_array.elements - 1,
-                              struct st_plugin_int *));
+  tmp= *dynamic_element(&plugin_array, plugin_array.elements - 1,
+                        struct st_plugin_int **)=
+       (struct st_plugin_int *) memdup_root(&plugin_mem_root, (uchar*)plugin,
+                                            sizeof(struct st_plugin_int));
+  DBUG_RETURN(tmp);
 }
 
 
@@ -878,7 +884,7 @@ static void reap_plugins(void)
 
   for (idx= 0; idx < count; idx++)
   {
-    plugin= dynamic_element(&plugin_array, idx, struct st_plugin_int *);
+    plugin= *dynamic_element(&plugin_array, idx, struct st_plugin_int **);
     if (plugin->state == PLUGIN_IS_DELETED && !plugin->ref_count)
     {
       /* change the status flag to prevent reaping by another thread */
@@ -1101,9 +1107,9 @@ int plugin_init(int *argc, char **argv, int flags)
   pthread_mutex_init(&LOCK_plugin, MY_MUTEX_INIT_FAST);
 
   if (my_init_dynamic_array(&plugin_dl_array,
-                            sizeof(struct st_plugin_dl),16,16) ||
+                            sizeof(struct st_plugin_dl *),16,16) ||
       my_init_dynamic_array(&plugin_array,
-                            sizeof(struct st_plugin_int),16,16))
+                            sizeof(struct st_plugin_int *),16,16))
     goto err;
 
   for (i= 0; i < MYSQL_MAX_PLUGIN_TYPE_NUM; i++)
@@ -1190,7 +1196,7 @@ int plugin_init(int *argc, char **argv, int flags)
 
   for (i= 0; i < plugin_array.elements; i++)
   {
-    plugin_ptr= dynamic_element(&plugin_array, i, struct st_plugin_int *);
+    plugin_ptr= *dynamic_element(&plugin_array, i, struct st_plugin_int **);
     if (plugin_ptr->state == PLUGIN_IS_UNINITIALIZED)
     {
       if (plugin_initialize(plugin_ptr))
@@ -1238,11 +1244,13 @@ static bool register_builtin(struct st_mysql_plugin *plugin,
   tmp->ref_count= 0;
   tmp->plugin_dl= 0;
 
-  if (insert_dynamic(&plugin_array, (uchar*)tmp))
+  if (insert_dynamic(&plugin_array, (uchar*)&tmp))
     DBUG_RETURN(1);
 
-  *ptr= dynamic_element(&plugin_array, plugin_array.elements - 1,
-                        struct st_plugin_int *);
+  *ptr= *dynamic_element(&plugin_array, plugin_array.elements - 1,
+                         struct st_plugin_int **)=
+        (struct st_plugin_int *) memdup_root(&plugin_mem_root, (uchar*)tmp,
+                                             sizeof(struct st_plugin_int));
 
   if (my_hash_insert(&plugin_hash[plugin->type],(uchar*) *ptr))
     DBUG_RETURN(1);
@@ -1481,7 +1489,7 @@ void plugin_shutdown(void)
       reap_plugins();
       for (i= free_slots= 0; i < count; i++)
       {
-        plugin= dynamic_element(&plugin_array, i, struct st_plugin_int *);
+        plugin= *dynamic_element(&plugin_array, i, struct st_plugin_int **);
         switch (plugin->state) {
         case PLUGIN_IS_READY:
           plugin->state= PLUGIN_IS_DELETED;
@@ -1513,7 +1521,7 @@ void plugin_shutdown(void)
     */
     for (i= 0; i < count; i++)
     {
-      plugins[i]= dynamic_element(&plugin_array, i, struct st_plugin_int *);
+      plugins[i]= *dynamic_element(&plugin_array, i, struct st_plugin_int **);
       /* change the state to ensure no reaping races */
       if (plugins[i]->state == PLUGIN_IS_DELETED)
         plugins[i]->state= PLUGIN_IS_DYING;
@@ -1578,7 +1586,7 @@ void plugin_shutdown(void)
   count= plugin_dl_array.elements;
   dl= (struct st_plugin_dl **)my_alloca(sizeof(void*) * count);
   for (i= 0; i < count; i++)
-    dl[i]= dynamic_element(&plugin_dl_array, i, struct st_plugin_dl *);
+    dl[i]= *dynamic_element(&plugin_dl_array, i, struct st_plugin_dl **);
   for (i= 0; i < plugin_dl_array.elements; i++)
     free_plugin_mem(dl[i]);
   my_afree(dl);
@@ -1737,7 +1745,7 @@ bool plugin_foreach_with_mask(THD *thd, plugin_foreach_func *func,
   {
     for (idx= 0; idx < total; idx++)
     {
-      plugin= dynamic_element(&plugin_array, idx, struct st_plugin_int *);
+      plugin= *dynamic_element(&plugin_array, idx, struct st_plugin_int **);
       plugins[idx]= !(plugin->state & state_mask) ? plugin : NULL;
     }
   }
@@ -3162,7 +3170,7 @@ void my_print_help_inc_plugins(my_option *main_options, uint size)
   if (initialized)
     for (uint idx= 0; idx < plugin_array.elements; idx++)
     {
-      p= dynamic_element(&plugin_array, idx, struct st_plugin_int *);
+      p= *dynamic_element(&plugin_array, idx, struct st_plugin_int **);
 
       if (!p->plugin->system_vars ||
           !(opt= construct_help_options(&mem_root, p)))

sql/sql_table.cc

@@ -54,10 +54,6 @@ mysql_prepare_alter_table(THD *thd, TABLE *table,
                           HA_CREATE_INFO *create_info,
                           Alter_info *alter_info);
 
-#define MYSQL50_TABLE_NAME_PREFIX         "#mysql50#"
-#define MYSQL50_TABLE_NAME_PREFIX_LENGTH  9
-
-
 /*
   Translate a file name to a table name (WL #1324).
 
@@ -4072,34 +4068,16 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
     */
     if (!table->table)
     {
-      char buf[ERRMSGSIZE+ERRMSGSIZE+2];
-      const char *err_msg;
-      protocol->prepare_for_resend();
-      protocol->store(table_name, system_charset_info);
-      protocol->store(operator_name, system_charset_info);
-      protocol->store(STRING_WITH_LEN("error"), system_charset_info);
-      if (!(err_msg=thd->net.last_error))
-	err_msg=ER(ER_CHECK_NO_SUCH_TABLE);
+      if (!thd->warn_list.elements)
+        push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
+                     ER_CHECK_NO_SUCH_TABLE, ER(ER_CHECK_NO_SUCH_TABLE));
       /* if it was a view will check md5 sum */
       if (table->view &&
           view_checksum(thd, table) == HA_ADMIN_WRONG_CHECKSUM)
-      {
-        strxmov(buf, err_msg, "; ", ER(ER_VIEW_CHECKSUM), NullS);
-        err_msg= (const char *)buf;
-      }
-      protocol->store(err_msg, system_charset_info);
-      lex->cleanup_after_one_table_open();
-      thd->clear_error();
-      /*
-        View opening can be interrupted in the middle of process so some
-        tables can be left opening
-      */
-      ha_autocommit_or_rollback(thd, 1);
-      close_thread_tables(thd);
-      lex->reset_query_tables_list(FALSE);
-      if (protocol->write())
-	goto err;
-      continue;
+        push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
+                     ER_VIEW_CHECKSUM, ER(ER_VIEW_CHECKSUM));
+      result_code= HA_ADMIN_CORRUPT;
+      goto send_result;
     }
 
     if (table->view)
@@ -4185,6 +4163,23 @@ send_result:
 
     lex->cleanup_after_one_table_open();
     thd->clear_error();  // these errors shouldn't get client
+    {
+      List_iterator_fast<MYSQL_ERROR> it(thd->warn_list);
+      MYSQL_ERROR *err;
+      while ((err= it++))
+      {
+        protocol->prepare_for_resend();
+        protocol->store(table_name, system_charset_info);
+        protocol->store((char*) operator_name, system_charset_info);
+        protocol->store(warning_level_names[err->level].str,
+                        warning_level_names[err->level].length,
+                        system_charset_info);
+        protocol->store(err->msg, system_charset_info);
+        if (protocol->write())
+          goto err;
+      }
+      mysql_reset_errors(thd, true);
+    }
     protocol->prepare_for_resend();
     protocol->store(table_name, system_charset_info);
     protocol->store(operator_name, system_charset_info);
@@ -4390,6 +4385,8 @@ send_result_message:
 bool mysql_backup_table(THD* thd, TABLE_LIST* table_list)
 {
   DBUG_ENTER("mysql_backup_table");
+  WARN_DEPRECATED(thd, "5.2", "BACKUP TABLE",
+                  "MySQL Administrator (mysqldump, mysql)");
   DBUG_RETURN(mysql_admin_table(thd, table_list, 0,
 				"backup", TL_READ, 0, 0, 0, 0,
 				&handler::backup, 0));
@@ -4399,6 +4396,8 @@ bool mysql_backup_table(THD* thd, TABLE_LIST* table_list)
 bool mysql_restore_table(THD* thd, TABLE_LIST* table_list)
 {
   DBUG_ENTER("mysql_restore_table");
+  WARN_DEPRECATED(thd, "5.2", "RESTORE TABLE",
+                  "MySQL Administrator (mysqldump, mysql)");
   DBUG_RETURN(mysql_admin_table(thd, table_list, 0,
 				"restore", TL_WRITE, 1, 1, 0,
 				&prepare_for_restore,
@@ -4788,7 +4787,7 @@ bool mysql_check_table(THD* thd, TABLE_LIST* tables,HA_CHECK_OPT* check_opt)
   DBUG_ENTER("mysql_check_table");
   DBUG_RETURN(mysql_admin_table(thd, tables, check_opt,
 				"check", lock_type,
-				0, HA_OPEN_FOR_REPAIR, 0, 0,
+				0, 0, HA_OPEN_FOR_REPAIR, 0,
 				&handler::ha_check, &view_checksum));
 }
 

sql/sql_yacc.yy

@@ -5751,8 +5751,6 @@ restore:
 	RESTORE_SYM table_or_tables
 	{
 	   Lex->sql_command = SQLCOM_RESTORE_TABLE;
-           WARN_DEPRECATED(yythd, "5.2", "RESTORE TABLE",
-                           "MySQL Administrator (mysqldump, mysql)");
 	}
 	table_list FROM TEXT_STRING_sys
         {
@@ -5763,8 +5761,6 @@ backup:
 	BACKUP_SYM table_or_tables
 	{
 	   Lex->sql_command = SQLCOM_BACKUP_TABLE;
-           WARN_DEPRECATED(yythd, "5.2", "BACKUP TABLE",
-                           "MySQL Administrator (mysqldump, mysql)");
 	}
 	table_list TO_SYM TEXT_STRING_sys
         {

sql/table.cc

@@ -343,10 +343,25 @@ int open_table_def(THD *thd, TABLE_SHARE *share, uint db_flags)
   strxmov(path, share->normalized_path.str, reg_ext, NullS);
   if ((file= my_open(path, O_RDONLY | O_SHARE, MYF(0))) < 0)
   {
-    if (strchr(share->table_name.str, '@'))
+    /*
+      We don't try to open 5.0 unencoded name, if
+      - non-encoded name contains '@' signs, 
+        because '@' can be misinterpreted.
+        It is not clear if '@' is escape character in 5.1,
+        or a normal character in 5.0.
+        
+      - non-encoded db or table name contain "#mysql50#" prefix.
+        This kind of tables must have been opened only by the
+        my_open() above.
+    */
+    if (strchr(share->table_name.str, '@') ||
+        !strncmp(share->db.str, MYSQL50_TABLE_NAME_PREFIX,
+                 MYSQL50_TABLE_NAME_PREFIX_LENGTH) ||
+        !strncmp(share->table_name.str, MYSQL50_TABLE_NAME_PREFIX,
+                 MYSQL50_TABLE_NAME_PREFIX_LENGTH))
       goto err_not_open;
 
-    /* Try unecoded 5.0 name */
+    /* Try unencoded 5.0 name */
     uint length;
     strxnmov(path, sizeof(path)-1,
              mysql_data_home, "/", share->db.str, "/",

storage/myisam/ft_boolean_search.c

@@ -286,8 +286,8 @@ static int ftb_parse_query_internal(MYSQL_FTPARSER_PARAM *param,
 }
 
 
-static void _ftb_parse_query(FTB *ftb, uchar *query, uint len,
-                             struct st_mysql_ftparser *parser)
+static int _ftb_parse_query(FTB *ftb, uchar *query, uint len,
+                            struct st_mysql_ftparser *parser)
 {
   MYSQL_FTPARSER_PARAM *param;
   MY_FTB_PARAM ftb_param;
@@ -295,9 +295,9 @@ static void _ftb_parse_query(FTB *ftb, uchar *query, uint len,
   DBUG_ASSERT(parser);
 
   if (ftb->state != UNINITIALIZED)
-    DBUG_VOID_RETURN;
+    DBUG_RETURN(0);
   if (! (param= ftparser_call_initializer(ftb->info, ftb->keynr, 0)))
-    DBUG_VOID_RETURN;
+    DBUG_RETURN(1);
 
   ftb_param.ftb= ftb;
   ftb_param.depth= 0;
@@ -312,8 +312,7 @@ static void _ftb_parse_query(FTB *ftb, uchar *query, uint len,
   param->length= len;
   param->flags= 0;
   param->mode= MYSQL_FTPARSER_FULL_BOOLEAN_INFO;
-  parser->parse(param);
-  DBUG_VOID_RETURN;
+  DBUG_RETURN(parser->parse(param));
 }
 
 
@@ -538,9 +537,10 @@ FT_INFO * ft_init_boolean_search(MI_INFO *info, uint keynr, uchar *query,
   ftbe->phrase= NULL;
   ftbe->document= 0;
   ftb->root=ftbe;
-  _ftb_parse_query(ftb, query, query_len, keynr == NO_SUCH_KEY ?
-                                          &ft_default_parser :
-                                          info->s->keyinfo[keynr].parser);
+  if (unlikely(_ftb_parse_query(ftb, query, query_len,
+                                keynr == NO_SUCH_KEY ? &ft_default_parser :
+                                info->s->keyinfo[keynr].parser)))
+    goto err;
   /*
     Hack: instead of init_queue, we'll use reinit queue to be able
     to alloc queue with alloc_root()
@@ -622,7 +622,7 @@ static int ftb_check_phrase_internal(MYSQL_FTPARSER_PARAM *param,
   {
     param->mysql_add_word(param, word.pos, word.len, 0);
     if (phrase_param->match)
-      return 1;
+      break;
   }
   return 0;
 }
@@ -640,6 +640,7 @@ static int ftb_check_phrase_internal(MYSQL_FTPARSER_PARAM *param,
 
   RETURN VALUE
     1 is returned if phrase found, 0 else.
+    -1 is returned if error occurs.
 */
 
 static int _ftb_check_phrase(FTB *ftb, const uchar *document, uint len,
@@ -668,12 +669,13 @@ static int _ftb_check_phrase(FTB *ftb, const uchar *document, uint len,
   param->length= len;
   param->flags= 0;
   param->mode= MYSQL_FTPARSER_WITH_STOPWORDS;
-  parser->parse(param);
+  if (unlikely(parser->parse(param)))
+    return -1;
   DBUG_RETURN(ftb_param.match ? 1 : 0);
 }
 
 
-static void _ftb_climb_the_tree(FTB *ftb, FTB_WORD *ftbw, FT_SEG_ITERATOR *ftsi_orig)
+static int _ftb_climb_the_tree(FTB *ftb, FTB_WORD *ftbw, FT_SEG_ITERATOR *ftsi_orig)
 {
   FT_SEG_ITERATOR ftsi;
   FTB_EXPR *ftbe;
@@ -705,17 +707,19 @@ static void _ftb_climb_the_tree(FTB *ftb, FTB_WORD *ftbw, FT_SEG_ITERATOR *ftsi_
         weight=ftbe->cur_weight*ftbe->weight;
         if (mode && ftbe->phrase)
         {
-          int not_found=1;
+          int found= 0;
 
           memcpy(&ftsi, ftsi_orig, sizeof(ftsi));
-          while (_mi_ft_segiterator(&ftsi) && not_found)
+          while (_mi_ft_segiterator(&ftsi) && !found)
           {
             if (!ftsi.pos)
               continue;
-            not_found = ! _ftb_check_phrase(ftb, ftsi.pos, ftsi.len,
-                                            ftbe, parser);
+            found= _ftb_check_phrase(ftb, ftsi.pos, ftsi.len, ftbe, parser);
+            if (unlikely(found < 0))
+              return 1;
           }
-          if (not_found) break;
+          if (!found)
+            break;
         } /* ftbe->quot */
       }
       else
@@ -747,6 +751,7 @@ static void _ftb_climb_the_tree(FTB *ftb, FTB_WORD *ftbw, FT_SEG_ITERATOR *ftsi_
       weight*= ftbe->weight;
     }
   }
+  return 0;
 }
 
 
@@ -779,7 +784,11 @@ int ft_boolean_read_next(FT_INFO *ftb, char *record)
   {
     while (curdoc == (ftbw=(FTB_WORD *)queue_top(& ftb->queue))->docid[0])
     {
-      _ftb_climb_the_tree(ftb, ftbw, 0);
+      if (unlikely(_ftb_climb_the_tree(ftb, ftbw, 0)))
+      {
+        my_errno= HA_ERR_OUT_OF_MEM;
+        goto err;
+      }
 
       /* update queue */
       _ft2_search(ftb, ftbw, 0);
@@ -855,7 +864,8 @@ static int ftb_find_relevance_add_word(MYSQL_FTPARSER_PARAM *param,
     if (ftbw->docid[1] == ftb->info->lastpos)
       continue;
     ftbw->docid[1]= ftb->info->lastpos;
-     _ftb_climb_the_tree(ftb, ftbw, ftb_param->ftsi);
+    if (unlikely(_ftb_climb_the_tree(ftb, ftbw, ftb_param->ftsi)))
+      return 1;
   }
   return(0);
 }
@@ -927,7 +937,8 @@ float ft_boolean_find_relevance(FT_INFO *ftb, uchar *record, uint length)
       continue;
     param->doc= (uchar *)ftsi.pos;
     param->length= ftsi.len;
-    parser->parse(param);
+    if (unlikely(parser->parse(param)))
+      return 0;
   }
   ftbe=ftb->root;
   if (ftbe->docid[1]==docid && ftbe->cur_weight>0 &&

storage/myisam/ft_nlq_search.c

@@ -257,8 +257,12 @@ FT_INFO *ft_init_nlq_search(MI_INFO *info, uint keynr, uchar *query,
       {
         info->update|= HA_STATE_AKTIV;
         ftparser_param->flags= MYSQL_FTFLAGS_NEED_COPY;
-        _mi_ft_parse(&wtree, info, keynr, record, ftparser_param,
-                     &wtree.mem_root);
+        if (unlikely(_mi_ft_parse(&wtree, info, keynr, record, ftparser_param,
+                                  &wtree.mem_root)))
+        {
+          delete_queue(&best);
+          goto err;
+        }
       }
     }
     delete_queue(&best);

storage/myisam/ha_myisam.cc

@@ -84,6 +84,14 @@ static void mi_check_print_msg(MI_CHECK *param,	const char* msg_type,
   }
   length=(uint) (strxmov(name, param->db_name,".",param->table_name,NullS) -
 		 name);
+  /*
+    TODO: switch from protocol to push_warning here. The main reason we didn't
+    it yet is parallel repair. Due to following trace:
+    mi_check_print_msg/push_warning/sql_alloc/my_pthread_getspecific_ptr.
+
+    Also we likely need to lock mutex here (in both cases with protocol and
+    push_warning).
+  */
   protocol->prepare_for_resend();
   protocol->store(name, length, system_charset_info);
   protocol->store(param->op_name, system_charset_info);
@@ -1216,11 +1224,7 @@ int ha_myisam::assign_to_keycache(THD* thd, HA_CHECK_OPT *check_opt)
   table->keys_in_use_for_query.clear_all();
 
   if (table_list->process_index_hints(table))
-  {
-    errmsg= thd->net.last_error;
-    error= HA_ADMIN_FAILED;
-    goto err;
-  }
+    DBUG_RETURN(HA_ADMIN_FAILED);
   map= ~(ulonglong) 0;
   if (!table->keys_in_use_for_query.is_clear_all())
     /* use all keys if there's no list specified by the user through hints */
@@ -1235,7 +1239,6 @@ int ha_myisam::assign_to_keycache(THD* thd, HA_CHECK_OPT *check_opt)
     error= HA_ADMIN_CORRUPT;
   }
 
- err:
   if (error != HA_ADMIN_OK)
   {
     /* Send error to user */
@@ -1270,11 +1273,7 @@ int ha_myisam::preload_keys(THD* thd, HA_CHECK_OPT *check_opt)
   table->keys_in_use_for_query.clear_all();
 
   if (table_list->process_index_hints(table))
-  {
-    errmsg= thd->net.last_error;
-    error= HA_ADMIN_FAILED;
-    goto err;
-  }
+    DBUG_RETURN(HA_ADMIN_FAILED);
 
   map= ~(ulonglong) 0;
   /* Check validity of the index references */

storage/myisammrg/ha_myisammrg.cc

@@ -52,6 +52,24 @@ extern int check_definition(MI_KEYDEF *t1_keyinfo, MI_COLUMNDEF *t1_recinfo,
                             uint t1_keys, uint t1_recs,
                             MI_KEYDEF *t2_keyinfo, MI_COLUMNDEF *t2_recinfo,
                             uint t2_keys, uint t2_recs, bool strict);
+static void split_file_name(const char *file_name,
+			    LEX_STRING *db, LEX_STRING *name);
+
+
+extern "C" void myrg_print_wrong_table(const char *table_name)
+{
+  LEX_STRING db, name;
+  char buf[FN_REFLEN];
+  split_file_name(table_name, &db, &name);
+  memcpy(buf, db.str, db.length);
+  buf[db.length]= '.';
+  memcpy(buf + db.length + 1, name.str, name.length);
+  buf[db.length + name.length + 1]= 0;
+  push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
+                      ER_ADMIN_WRONG_MRG_TABLE, ER(ER_ADMIN_WRONG_MRG_TABLE),
+                      buf);
+}
+
 
 const char **ha_myisammrg::bas_ext() const
 {
@@ -102,6 +120,8 @@ int ha_myisammrg::open(const char *name, int mode, uint test_if_locked)
   {
     DBUG_PRINT("error",("reclength: %lu  mean_rec_length: %lu",
 			table->s->reclength, stats.mean_rec_length));
+    if (test_if_locked & HA_OPEN_FOR_REPAIR)
+      myrg_print_wrong_table(file->open_tables->table->filename);
     error= HA_ERR_WRONG_MRG_TABLE_DEF;
     goto err;
   }
@@ -120,12 +140,19 @@ int ha_myisammrg::open(const char *name, int mode, uint test_if_locked)
                          u_table->table->s->base.keys,
                          u_table->table->s->base.fields, false))
     {
-      my_free((uchar*) recinfo, MYF(0));
       error= HA_ERR_WRONG_MRG_TABLE_DEF;
-      goto err;
+      if (test_if_locked & HA_OPEN_FOR_REPAIR)
+        myrg_print_wrong_table(u_table->table->filename);
+      else
+      {
+        my_free((uchar*) recinfo, MYF(0));
+        goto err;
+      }
     }
   }
   my_free((uchar*) recinfo, MYF(0));
+  if (error == HA_ERR_WRONG_MRG_TABLE_DEF)
+    goto err;
 #if !defined(BIG_TABLES) || SIZEOF_OFF_T == 4
   /* Merge table has more than 2G rows */
   if (table->s->crashed)
@@ -593,6 +620,13 @@ bool ha_myisammrg::check_if_incompatible_data(HA_CREATE_INFO *info,
   return COMPATIBLE_DATA_NO;
 }
 
+
+int ha_myisammrg::check(THD* thd, HA_CHECK_OPT* check_opt)
+{
+  return HA_ADMIN_OK;
+}
+
+
 extern int myrg_panic(enum ha_panic_function flag);
 int myisammrg_panic(handlerton *hton, ha_panic_function flag)
 {

storage/myisammrg/ha_myisammrg.h

@@ -84,4 +84,5 @@ class ha_myisammrg: public handler
   void append_create_info(String *packet);
   MYRG_INFO *myrg_info() { return file; }
   bool check_if_incompatible_data(HA_CREATE_INFO *info, uint table_changes);
+  int check(THD* thd, HA_CHECK_OPT* check_opt);
 };

storage/myisammrg/myrg_def.h

@@ -29,4 +29,7 @@ extern pthread_mutex_t THR_LOCK_open;
 
 int _myrg_init_queue(MYRG_INFO *info,int inx,enum ha_rkey_function search_flag);
 int _myrg_mi_read_record(MI_INFO *info, uchar *buf);
-
+#ifdef __cplusplus
+extern "C" 
+#endif
+void myrg_print_wrong_table(const char *table_name);

storage/myisammrg/myrg_open.c

@@ -92,6 +92,11 @@ MYRG_INFO *myrg_open(const char *name, int mode, int handle_locking)
     if (!(isam=mi_open(buff,mode,(handle_locking?HA_OPEN_WAIT_IF_LOCKED:0))))
     {
       my_errno= HA_ERR_WRONG_MRG_TABLE_DEF;
+      if (handle_locking & HA_OPEN_FOR_REPAIR)
+      {
+        myrg_print_wrong_table(buff);
+        continue;
+      }
       goto err;
     }
     if (!m_info)                                /* First file */
@@ -120,6 +125,11 @@ MYRG_INFO *myrg_open(const char *name, int mode, int handle_locking)
     if (m_info->reclength != isam->s->base.reclength)
     {
       my_errno=HA_ERR_WRONG_MRG_TABLE_DEF;
+      if (handle_locking & HA_OPEN_FOR_REPAIR)
+      {
+        myrg_print_wrong_table(buff);
+        continue;
+      }
       goto err;
     }
     m_info->options|= isam->s->options;
@@ -133,6 +143,8 @@ MYRG_INFO *myrg_open(const char *name, int mode, int handle_locking)
                                      m_info->tables);
   }
 
+  if (my_errno == HA_ERR_WRONG_MRG_TABLE_DEF)
+    goto err;
   if (!m_info && !(m_info= (MYRG_INFO*) my_malloc(sizeof(MYRG_INFO),
                                                   MYF(MY_WME | MY_ZEROFILL))))
     goto err;