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Merge mysql1000.(none):/home/andrei/MySQL/MERGE/5.0-main2rpl

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into  mysql1000.(none):/home/andrei/MySQL/MERGE/5.1-main2rpl


BitKeeper/deleted/.del-binlog_killed_simulate.result:
  Auto merged
BitKeeper/deleted/.del-show_binlog_events.inc:
  Auto merged
mysql-test/suite/rpl/r/rpl_user.result:
  Auto merged
storage/blackhole/ha_blackhole.cc:
  Auto merged
BitKeeper/deleted/.del-show_binary_logs.inc:
  Delete: mysql-test/include/show_binary_logs.inc
mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result:
  manual merge ul.
mysql-test/extra/binlog_tests/blackhole.test:
  manual merge
mysql-test/suite/binlog/r/binlog_stm_blackhole.result:
  manual merge
sql/log.cc:
  manual merge
sql/share/errmsg.txt:
  manual merge
sql/sql_class.cc:
  manual merge
This commit is contained in:
unknown 2008-03-29 15:00:12 +02:00
commit 6630d2e18c
10 changed files with 566 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
mysql-test/extra/binlog_tests/blackhole.test
View File

@ -151,7 +151,6 @@ CREATE TABLE t1(a INT) ENGINE=BLACKHOLE;
INSERT DELAYED INTO t1 VALUES(1); INSERT DELAYED INTO t1 VALUES(1);
DROP TABLE t1; DROP TABLE t1;
# End of 4.1 tests
# #
#Bug#19717: DELETE Query Error on BLACKHOLE when using WHERE on column with UNIQUE INDEX #Bug#19717: DELETE Query Error on BLACKHOLE when using WHERE on column with UNIQUE INDEX
@ -168,7 +167,6 @@ ALTER TABLE t1 ADD PRIMARY KEY(a);
DELETE FROM t1 WHERE a=10; DELETE FROM t1 WHERE a=10;
DROP TABLE t1; DROP TABLE t1;
# End of 5.0 tests
# Test that a transaction which is rolled back does not go into binlog # Test that a transaction which is rolled back does not go into binlog
# and that a transaction which is committed does # and that a transaction which is committed does
@ -193,4 +191,27 @@ show binlog events;
drop table if exists t1; drop table if exists t1;
# End of 5.1 tests #
# Bug#35178 INSERT_ID not written to binary log for inserts against BLACKHOLE backed tables
#
#
# the test checks that explicitly prescribed with set insert_id= value
# preceeds the following autoincrement insert in a blachhole
#
reset master;
create table t1 (a int auto_increment, primary key (a)) engine=blackhole;
# not insert_id prescribed insert binlogs with the default set insert_id 1
insert into t1 values (11), (NULL), (NULL), (NULL);
set insert_id= 3;
insert into t1 values (NULL), (33), (NULL);
set insert_id= 5;
insert into t1 values (55), (NULL);
source include/show_binlog_events2.inc;
# cleanup
drop table t1;
# End of tests

39
mysql-test/r/binlog_index.result Normal file
View File

@ -0,0 +1,39 @@
flush logs;
flush logs;
flush logs;
show binary logs;
Log_name File_size
master-bin.000001 #
master-bin.000002 #
master-bin.000003 #
master-bin.000004 #
purge binary logs TO 'master-bin.000004';
Warnings:
Warning 1476 Being purged log MYSQLTEST_VARDIR/log/master-bin.000001 was not found
*** must show a list starting from the 'TO' argument of PURGE ***
show binary logs;
Log_name File_size
master-bin.000004 #
reset master;
flush logs;
flush logs;
flush logs;
*** must be a warning master-bin.000001 was not found ***
Warnings:
Warning 1476 Being purged log MYSQLTEST_VARDIR/log/master-bin.000001 was not found
*** must show one record, of the active binlog, left in the index file after PURGE ***
show binary logs;
Log_name File_size
master-bin.000004 #
reset master;
flush logs;
flush logs;
flush logs;
purge binary logs TO 'master-bin.000002';
ERROR HY000: Fatal error during log purge
show warnings;
Level Code Message
Error 1377 a problem with deleting MYSQLTEST_VARDIR/log/master-bin.000001; consider examining correspondence of your binlog index file to the actual binlog files
Error 1377 Fatal error during log purge
reset master;
End of tests

165
mysql-test/r/rpl_auto_increment_bug33029.result Normal file
View File

@ -0,0 +1,165 @@
stop slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
reset master;
reset slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
start slave;
DROP TABLE IF EXISTS t1, t2;
DROP PROCEDURE IF EXISTS p1;
DROP PROCEDURE IF EXISTS p2;
DROP TRIGGER IF EXISTS tr1;
DROP FUNCTION IF EXISTS f1;
CREATE TABLE t1 (id INT AUTO_INCREMENT PRIMARY KEY);
CREATE TABLE t2 (id INT AUTO_INCREMENT PRIMARY KEY);
CREATE PROCEDURE p1()
BEGIN
DECLARE ins_count INT DEFAULT 10;
WHILE ins_count > 0 DO
INSERT INTO t1 VALUES (NULL);
SET ins_count = ins_count - 1;
END WHILE;
DELETE FROM t1 WHERE id = 1;
DELETE FROM t1 WHERE id = 2;
DELETE FROM t2 WHERE id = 1;
DELETE FROM t2 WHERE id = 2;
END//
CREATE PROCEDURE p2()
BEGIN
INSERT INTO t1 VALUES (NULL);
DELETE FROM t1 WHERE id = f1(3);
DELETE FROM t1 WHERE id = f1(4);
DELETE FROM t2 WHERE id = 3;
DELETE FROM t2 WHERE id = 4;
END//
CREATE TRIGGER tr1 BEFORE DELETE
ON t1 FOR EACH ROW
BEGIN
INSERT INTO t2 VALUES (NULL);
END//
CREATE FUNCTION f1 (i int) RETURNS int
BEGIN
INSERT INTO t2 VALUES (NULL);
RETURN i;
END//
CALL p1();
show binlog events from <binlog_start>;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Intvar # # INSERT_ID=1
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=2
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=3
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=4
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=5
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=6
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=7
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=8
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=9
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Intvar # # INSERT_ID=10
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Query # # use `test`; DELETE FROM t1 WHERE id = 1
master-bin.000001 # Query # # use `test`; DELETE FROM t1 WHERE id = 2
master-bin.000001 # Query # # use `test`; DELETE FROM t2 WHERE id = 1
master-bin.000001 # Query # # use `test`; DELETE FROM t2 WHERE id = 2
# Result on master
SELECT * FROM t1;
id
3
4
5
6
7
8
9
10
SELECT * FROM t2;
id
# Result on slave
SELECT * FROM t1;
id
3
4
5
6
7
8
9
10
SELECT * FROM t2;
id
DROP TRIGGER tr1;
CALL p2();
show binlog events from <binlog_start>;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Intvar # # INSERT_ID=11
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (NULL)
master-bin.000001 # Query # # use `test`; DELETE FROM t1 WHERE id = f1(3)
master-bin.000001 # Query # # use `test`; DELETE FROM t1 WHERE id = f1(4)
master-bin.000001 # Query # # use `test`; DELETE FROM t2 WHERE id = 3
master-bin.000001 # Query # # use `test`; DELETE FROM t2 WHERE id = 4
# Result on master
SELECT * FROM t1;
id
5
6
7
8
9
10
11
SELECT * FROM t2;
id
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
# Result on slave
SELECT * FROM t1;
id
5
6
7
8
9
10
11
SELECT * FROM t2;
id
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
DROP TABLE IF EXISTS t1, t2;
DROP PROCEDURE IF EXISTS p1;
DROP PROCEDURE IF EXISTS p2;
DROP FUNCTION IF EXISTS f1;
DROP TRIGGER IF EXISTS tr1;

16
mysql-test/suite/binlog/r/binlog_stm_blackhole.result
View File

@ -172,3 +172,19 @@ master-bin.000001 # Query # # use `test`; BEGIN
master-bin.000001 # Query # # use `test`; insert into t1 values(1) master-bin.000001 # Query # # use `test`; insert into t1 values(1)
master-bin.000001 # Query # # use `test`; COMMIT master-bin.000001 # Query # # use `test`; COMMIT
drop table if exists t1; drop table if exists t1;
create table t1 (a int auto_increment, primary key (a)) engine=blackhole;
insert into t1 values (11), (NULL), (NULL), (NULL);
set insert_id= 3;
insert into t1 values (NULL), (33), (NULL);
set insert_id= 5;
insert into t1 values (55), (NULL);
show binlog events from <binlog_start>;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Query 1 # use `test`; create table t1 (a int auto_increment, primary key (a)) engine=blackhole
master-bin.000001 # Intvar 1 # INSERT_ID=1
master-bin.000001 # Query 1 # use `test`; insert into t1 values (11), (NULL), (NULL), (NULL)
master-bin.000001 # Intvar 1 # INSERT_ID=3
master-bin.000001 # Query 1 # use `test`; insert into t1 values (NULL), (33), (NULL)
master-bin.000001 # Intvar 1 # INSERT_ID=5
master-bin.000001 # Query 1 # use `test`; insert into t1 values (55), (NULL)
drop table t1;

69
mysql-test/t/binlog_index.test Normal file
View File

@ -0,0 +1,69 @@
#
# testing of purging of binary log files bug#18199/Bug#18453
#
source include/have_log_bin.inc;
source include/not_embedded.inc;
#
# testing purge binary logs TO
#
flush logs;
flush logs;
flush logs;
source include/show_binary_logs.inc;
remove_file $MYSQLTEST_VARDIR/log/master-bin.000001;
# there must be a warning with file names
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
purge binary logs TO 'master-bin.000004';
--echo *** must show a list starting from the 'TO' argument of PURGE ***
source include/show_binary_logs.inc;
#
# testing purge binary logs BEFORE
#
reset master;
flush logs;
flush logs;
flush logs;
remove_file $MYSQLTEST_VARDIR/log/master-bin.000001;
--echo *** must be a warning master-bin.000001 was not found ***
let $date=`select NOW() + INTERVAL 1 MINUTE`;
--disable_query_log
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
eval purge binary logs BEFORE '$date';
--enable_query_log
--echo *** must show one record, of the active binlog, left in the index file after PURGE ***
source include/show_binary_logs.inc;
#
# testing a fatal error
# Turning a binlog file into a directory must be a portable setup
#
reset master;
flush logs;
flush logs;
flush logs;
remove_file $MYSQLTEST_VARDIR/log/master-bin.000001;
mkdir $MYSQLTEST_VARDIR/log/master-bin.000001;
--error ER_BINLOG_PURGE_FATAL_ERR
purge binary logs TO 'master-bin.000002';
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
show warnings;
rmdir $MYSQLTEST_VARDIR/log/master-bin.000001;
--disable_warnings
reset master;
--enable_warnings
--echo End of tests

109
mysql-test/t/rpl_auto_increment_bug33029.test Normal file
View File

@ -0,0 +1,109 @@
# BUG#33029 5.0 to 5.1 replication fails on dup key when inserting
# using a trig in SP
# For all 5.0 up to 5.0.58 exclusive, and 5.1 up to 5.1.12 exclusive,
# if one statement in a SP generated AUTO_INCREMENT value by the top
# statement, all statements after it would be considered generated
# AUTO_INCREMENT value by the top statement, and a erroneous INSERT_ID
# value might be associated with these statement, which could cause
# duplicate entry error and stop the slave.
source include/master-slave.inc;
--disable_warnings
DROP TABLE IF EXISTS t1, t2;
DROP PROCEDURE IF EXISTS p1;
DROP PROCEDURE IF EXISTS p2;
DROP TRIGGER IF EXISTS tr1;
DROP FUNCTION IF EXISTS f1;
--enable_warnings
CREATE TABLE t1 (id INT AUTO_INCREMENT PRIMARY KEY);
CREATE TABLE t2 (id INT AUTO_INCREMENT PRIMARY KEY);
delimiter //;
CREATE PROCEDURE p1()
BEGIN
DECLARE ins_count INT DEFAULT 10;
WHILE ins_count > 0 DO
INSERT INTO t1 VALUES (NULL);
SET ins_count = ins_count - 1;
END WHILE;
DELETE FROM t1 WHERE id = 1;
DELETE FROM t1 WHERE id = 2;
DELETE FROM t2 WHERE id = 1;
DELETE FROM t2 WHERE id = 2;
END//
CREATE PROCEDURE p2()
BEGIN
INSERT INTO t1 VALUES (NULL);
DELETE FROM t1 WHERE id = f1(3);
DELETE FROM t1 WHERE id = f1(4);
DELETE FROM t2 WHERE id = 3;
DELETE FROM t2 WHERE id = 4;
END//
CREATE TRIGGER tr1 BEFORE DELETE
ON t1 FOR EACH ROW
BEGIN
INSERT INTO t2 VALUES (NULL);
END//
CREATE FUNCTION f1 (i int) RETURNS int
BEGIN
INSERT INTO t2 VALUES (NULL);
RETURN i;
END//
delimiter ;//
# the $binlog_start will be used by the show_binlog_events.inc, so
# that we can skip binlog events we don't care
let $binlog_start= query_get_value(SHOW MASTER STATUS, Position, 1);
CALL p1();
source include/show_binlog_events.inc;
echo # Result on master;
SELECT * FROM t1;
SELECT * FROM t2;
sync_slave_with_master;
echo # Result on slave;
SELECT * FROM t1;
SELECT * FROM t2;
connection master;
DROP TRIGGER tr1;
# the $binlog_start will be used by the show_binlog_events.inc, so
# that we can skip binlog events we don't care
let $binlog_start= query_get_value(SHOW MASTER STATUS, Position, 1);
CALL p2();
source include/show_binlog_events.inc;
echo # Result on master;
SELECT * FROM t1;
SELECT * FROM t2;
sync_slave_with_master;
echo # Result on slave;
SELECT * FROM t1;
SELECT * FROM t2;
# clean up
connection master;
disable_warnings;
DROP TABLE IF EXISTS t1, t2;
DROP PROCEDURE IF EXISTS p1;
DROP PROCEDURE IF EXISTS p2;
DROP FUNCTION IF EXISTS f1;
DROP TRIGGER IF EXISTS tr1;
enable_warnings;
sync_slave_with_master;

138
sql/log.cc
View File

@ -2913,6 +2913,8 @@ int MYSQL_BIN_LOG::update_log_index(LOG_INFO* log_info, bool need_update_threads
0 ok 0 ok
@retval @retval
LOG_INFO_EOF to_log not found LOG_INFO_EOF to_log not found
LOG_INFO_FATAL if any other than ENOENT error from
my_stat() or my_delete()
*/ */
int MYSQL_BIN_LOG::purge_logs(const char *to_log, int MYSQL_BIN_LOG::purge_logs(const char *to_log,
@ -2941,22 +2943,71 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
goto err; goto err;
while ((strcmp(to_log,log_info.log_file_name) || (exit_loop=included)) && while ((strcmp(to_log,log_info.log_file_name) || (exit_loop=included)) &&
!log_in_use(log_info.log_file_name)) !log_in_use(log_info.log_file_name))
{
ulong file_size= 0;
if (decrease_log_space) //stat the file we want to delete
{ {
MY_STAT s; MY_STAT s;
if (!my_stat(log_info.log_file_name, &s, MYF(0)))
{
if (my_errno == ENOENT)
{
/* /*
If we could not stat, we can't know the amount It's not fatal if we can't stat a log file that does not exist;
of space that deletion will free. In most cases, If we could not stat, we won't delete.
deletion won't work either, so it's not a problem.
*/ */
if (my_stat(log_info.log_file_name,&s,MYF(0))) push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
file_size= s.st_size; ER_LOG_PURGE_NO_FILE, ER(ER_LOG_PURGE_NO_FILE),
else log_info.log_file_name);
sql_print_information("Failed to execute my_stat on file '%s'", sql_print_information("Failed to execute my_stat on file '%s'",
log_info.log_file_name); log_info.log_file_name);
my_errno= 0;
}
else
{
/*
Other than ENOENT are fatal
*/
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
ER_BINLOG_PURGE_FATAL_ERR,
"a problem with getting info on being purged %s; "
"consider examining correspondence "
"of your binlog index file "
"to the actual binlog files",
log_info.log_file_name);
error= LOG_INFO_FATAL;
goto err;
}
}
else
{
DBUG_PRINT("info",("purging %s",log_info.log_file_name));
if (!my_delete(log_info.log_file_name, MYF(0)))
{
if (decrease_log_space)
*decrease_log_space-= s.st_size;
}
else
{
if (my_errno == ENOENT)
{
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_LOG_PURGE_NO_FILE, ER(ER_LOG_PURGE_NO_FILE),
log_info.log_file_name);
sql_print_information("Failed to delete file '%s'",
log_info.log_file_name);
my_errno= 0;
}
else
{
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
ER_BINLOG_PURGE_FATAL_ERR,
"a problem with deleting %s; "
"consider examining correspondence "
"of your binlog index file "
"to the actual binlog files",
log_info.log_file_name);
error= LOG_INFO_FATAL;
goto err;
}
}
} }
/* /*
It's not fatal if we can't delete a log file ; It's not fatal if we can't delete a log file ;
@ -3010,6 +3061,8 @@ err:
0 ok 0 ok
@retval @retval
LOG_INFO_PURGE_NO_ROTATE Binary file that can't be rotated LOG_INFO_PURGE_NO_ROTATE Binary file that can't be rotated
LOG_INFO_FATAL if any other than ENOENT error from
my_stat() or my_delete()
*/ */
int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time) int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
@ -3033,14 +3086,67 @@ int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
while (strcmp(log_file_name, log_info.log_file_name) && while (strcmp(log_file_name, log_info.log_file_name) &&
!log_in_use(log_info.log_file_name)) !log_in_use(log_info.log_file_name))
{ {
/* It's not fatal even if we can't delete a log file */ if (!my_stat(log_info.log_file_name, &stat_area, MYF(0)))
if (!my_stat(log_info.log_file_name, &stat_area, MYF(0)) || {
stat_area.st_mtime >= purge_time) if (my_errno == ENOENT)
{
/*
It's not fatal if we can't stat a log file that does not exist.
*/
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_LOG_PURGE_NO_FILE, ER(ER_LOG_PURGE_NO_FILE),
log_info.log_file_name);
sql_print_information("Failed to execute my_stat on file '%s'",
log_info.log_file_name);
my_errno= 0;
}
else
{
/*
Other than ENOENT are fatal
*/
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
ER_BINLOG_PURGE_FATAL_ERR,
"a problem with getting info on being purged %s; "
"consider examining correspondence "
"of your binlog index file "
"to the actual binlog files",
log_info.log_file_name);
error= LOG_INFO_FATAL;
goto err;
}
}
else
{
if (stat_area.st_mtime >= purge_time)
break; break;
my_delete(log_info.log_file_name, MYF(0)); if (my_delete(log_info.log_file_name, MYF(0)))
{
if (my_errno == ENOENT)
{
/* It's not fatal even if we can't delete a log file */
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_LOG_PURGE_NO_FILE, ER(ER_LOG_PURGE_NO_FILE),
log_info.log_file_name);
sql_print_information("Failed to delete file '%s'",
log_info.log_file_name);
my_errno= 0;
}
else
{
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
ER_BINLOG_PURGE_FATAL_ERR,
"a problem with deleting %s; "
"consider examining correspondence "
"of your binlog index file "
"to the actual binlog files",
log_info.log_file_name);
error= LOG_INFO_FATAL;
goto err;
}
}
ha_binlog_index_purge_file(current_thd, log_info.log_file_name); ha_binlog_index_purge_file(current_thd, log_info.log_file_name);
}
if (find_next_log(&log_info, 0)) if (find_next_log(&log_info, 0))
break; break;
} }

2
sql/share/errmsg.txt
View File

@ -6120,3 +6120,5 @@ ER_NO_FORMAT_DESCRIPTION_EVENT_BEFORE_BINLOG_STATEMENT
eng "The BINLOG statement of type `%s` was not preceded by a format description BINLOG statement." eng "The BINLOG statement of type `%s` was not preceded by a format description BINLOG statement."
ER_SLAVE_CORRUPT_EVENT ER_SLAVE_CORRUPT_EVENT
eng "Corrupted replication event was detected" eng "Corrupted replication event was detected"
ER_LOG_PURGE_NO_FILE
eng "Being purged log %s was not found"

13
sql/sql_class.cc
View File

@ -1069,6 +1069,19 @@ bool THD::store_globals()
void THD::cleanup_after_query() void THD::cleanup_after_query()
{ {
last_insert_id_used= FALSE;
if (clear_next_insert_id)
{
clear_next_insert_id= 0;
next_insert_id= 0;
/*
BUG#33029, if one statement in a SP set this member to 1, all
statment after this statement in the SP would be considered used
INSERT_ID value, reset this member after each query to fix this.
*/
insert_id_used= 0;
}
/* /*
Reset rand_used so that detection of calls to rand() will save random Reset rand_used so that detection of calls to rand() will save random
seeds if needed by the slave. seeds if needed by the slave.

2
storage/blackhole/ha_blackhole.cc
View File

@ -97,7 +97,7 @@ const char *ha_blackhole::index_type(uint key_number)
int ha_blackhole::write_row(uchar * buf) int ha_blackhole::write_row(uchar * buf)
{ {
DBUG_ENTER("ha_blackhole::write_row"); DBUG_ENTER("ha_blackhole::write_row");
DBUG_RETURN(0); DBUG_RETURN(table->next_number_field ? update_auto_increment() : 0);
} }
int ha_blackhole::rnd_init(bool scan) int ha_blackhole::rnd_init(bool scan)