--echo #
--echo # Bug#69122 - INNODB DOESN'T REDO-LOG INSERT BUFFER MERGE
--echo #             OPERATION IF IT IS DONE IN-PLACE
--echo #
--source include/have_innodb.inc
# innodb_change_buffering_debug option is debug only
--source include/have_debug.inc
# Embedded server does not support crashing
--source include/not_embedded.inc
# DBUG_SUICIDE() hangs under valgrind
--source include/not_valgrind.inc
# This test is slow on buildbot.
--source include/big_test.inc
--source include/have_sequence.inc

call mtr.add_suppression("InnoDB: innodb_read_only prevents crash recovery");
call mtr.add_suppression("Plugin initialization aborted at srv0start\\.cc");
call mtr.add_suppression("Plugin 'InnoDB'");
FLUSH TABLES;

CREATE TABLE t1(
	a INT AUTO_INCREMENT PRIMARY KEY,
	b CHAR(1),
	c INT,
	INDEX(b))
ENGINE=InnoDB STATS_PERSISTENT=0;

--let $_server_id= `SELECT @@server_id`
--let $_expect_file_name= $MYSQLTEST_VARDIR/tmp/mysqld.$_server_id.expect

# The flag innodb_change_buffering_debug is only available in debug builds.
# It instructs InnoDB to try to evict pages from the buffer pool when
# change buffering is possible, so that the change buffer will be used
# whenever possible.
SET GLOBAL innodb_change_buffering_debug = 1;
SET GLOBAL innodb_change_buffering = all;
let SEARCH_FILE = $MYSQLTEST_VARDIR/log/mysqld.1.err;

# Create enough rows for the table, so that the change buffer will be
# used for modifying the secondary index page. There must be multiple
# index pages, because changes to the root page are never buffered.
INSERT INTO t1 SELECT 0,'x',1 FROM seq_1_to_8192;

BEGIN;
SELECT b FROM t1 LIMIT 3;

connect (con1,localhost,root,,);
BEGIN;
DELETE FROM t1 WHERE a=1;
# This should be buffered, if innodb_change_buffering_debug = 1 is in effect.
INSERT INTO t1 VALUES(1,'X',1);

SET DEBUG_DBUG='+d,crash_after_log_ibuf_upd_inplace';
--exec echo "wait" > $_expect_file_name
--error 2013
# This should force a change buffer merge
SELECT b FROM t1 LIMIT 3;
disconnect con1;
connection default;
let SEARCH_PATTERN=Wrote log record for ibuf update in place operation;
--source include/search_pattern_in_file.inc

--let $restart_parameters= --innodb-read-only
--source include/start_mysqld.inc
CHECK TABLE t1;
--source include/shutdown_mysqld.inc
let SEARCH_PATTERN=innodb_read_only prevents crash recovery;
--source include/search_pattern_in_file.inc

--let $restart_parameters= --innodb-force-recovery=5
--source include/start_mysqld.inc
SELECT * FROM t1 LIMIT 1;
replace_regex /.*operations:.* (insert.*), delete \d.*discarded .*/\1/;
SHOW ENGINE INNODB STATUS;
# Slow shutdown will not merge the changes due to innodb_force_recovery=5.
SET GLOBAL innodb_fast_shutdown=0;
--let $restart_parameters=
--source include/restart_mysqld.inc
CHECK TABLE t1;
replace_regex /.*operations:.* insert [1-9][0-9]*, delete mark [1-9][0-9]*, delete \d.*discarded .*//;
SHOW ENGINE INNODB STATUS;
DROP TABLE t1;