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# Test for Bug#31205266 : CONCURRENT UPDATE CAUSE CRASH IN ROW_SEARCH_MVCC

--source include/have_innodb.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc

--disable_query_log
SET @old_innodb_limit_optimistic_insert_debug = @@innodb_limit_optimistic_insert_debug;
--enable_query_log

# Save the initial number of concurrent sessions
--source include/count_sessions.inc

--connect(con1,localhost,root,'',)

set debug_sync='reset';

connection default;
CREATE TABLE t1 (
  id int(11) NOT NULL auto_increment,
  ggid varchar(32) binary DEFAULT '' NOT NULL,
  email varchar(64) DEFAULT '' NOT NULL,
  passwd varchar(32) binary DEFAULT '' NOT NULL,
  PRIMARY KEY (id),
  UNIQUE ggid (ggid)
) ENGINE=innodb;

SET GLOBAL innodb_limit_optimistic_insert_debug = 2;

insert into t1 (ggid,passwd) values ('test1','xxx');
insert into t1 (ggid,passwd) values ('test2','yyy');

set debug_sync='row_search_before_mtr_restart_for_extra_clust SIGNAL reached WAIT_FOR continue';
--send
select * from t1 where ggid='test2';

connection con1;
set debug_sync='now WAIT_FOR reached';

#moves the record to the another place and causes split at the page
update t1 set ggid='test0' where id=2;
insert into t1 (ggid,passwd) values ('test2','www');

set debug_sync='now SIGNAL continue';

connection default;
reap;

disconnect con1;

set debug_sync='reset';
drop table t1;

--disable_query_log
SET GLOBAL innodb_limit_optimistic_insert_debug = @old_innodb_limit_optimistic_insert_debug;
--enable_query_log

# Wait till all disconnects are completed.
--source include/wait_until_count_sessions.inc