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

--echo #
--echo # MDEV-35508: Race condition between purge and secondary index INSERT or UPDATE
--echo #

SET @old_debug_dbug = @@global.debug_dbug;

CREATE TABLE t1(col1 INT PRIMARY KEY, col2 int, KEY k1(col2)) ENGINE=Innodb;
INSERT INTO t1 VALUES(1, 100);

CREATE TABLE t2(col1 INT PRIMARY KEY) Engine=Innodb;
--source include/wait_all_purged.inc

START TRANSACTION;
INSERT INTO t2 VALUES(10);

SET DEBUG_SYNC='RESET';

SET GLOBAL debug_dbug= "+d,btr_force_pessimistic_delete";
SET GLOBAL debug_dbug= "+d,enable_row_purge_sec_tree_sync";

--connect (con1,localhost,root)
UPDATE t1 SET col2 = 200 WHERE col1 = 1;

--connection default
SET DEBUG_SYNC= 'now WAIT_FOR purge_sec_tree_begin';
SET GLOBAL debug_dbug= "-d,enable_row_purge_sec_tree_sync";

UPDATE t1 SET col2 = 100 WHERE col1 = 1;
SET DEBUG_SYNC= 'now SIGNAL purge_sec_tree_execute';

COMMIT;
--source include/wait_all_purged.inc

--disconnect con1

SELECT * FROM t1;
CHECK TABLE t1;
DROP TABLE t1;

SELECT * FROM t2;
DROP TABLE t2;

SET @@GLOBAL.debug_dbug = @old_debug_dbug;
SET DEBUG_SYNC='RESET';