--source suite/xengine/include/have_xengine.inc

#
# Generate concurrent requests to alter a table using mysqlslap
#

--disable_warnings
DROP DATABASE IF EXISTS mysqlslap;
--enable_warnings

CREATE DATABASE mysqlslap;

use mysqlslap;

CREATE TABLE a1 (a int, b int) ENGINE=XENGINE;
INSERT INTO a1 VALUES (1, 1);

--write_file $MYSQL_TMP_DIR/concurrent_alter.sh
$MYSQL_SLAP --silent --delimiter=";" --query="alter table a1 add index bx(b); alter table a1 drop index bx" --concurrency=1 --iterations=25 &
$MYSQL_SLAP --silent --delimiter=";" --query="alter table a1 add index ax(a); alter table a1 drop index ax" --concurrency=1 --iterations=25 &
sleep 2
$MYSQL_SLAP --silent --delimiter=";" --query="select * from a1 where a=1" --concurrency=16 --iterations=1000 &
$MYSQL_SLAP --silent --delimiter=";" --query="select * from a1 where b=1" --concurrency=16 --iterations=1000
sleep 2
$MYSQL_SLAP --silent --delimiter=";" --query="select * from a1 where a=1" --concurrency=16 --iterations=1000 &
$MYSQL_SLAP --silent --delimiter=";" --query="select * from a1 where b=1" --concurrency=16 --iterations=1000
wait
EOF

--exec bash $MYSQL_TMP_DIR/concurrent_alter.sh

SHOW CREATE TABLE a1;

DROP DATABASE mysqlslap;

#clean
--remove_file $MYSQL_TMP_DIR/concurrent_alter.sh
--source suite/xengine/include/check_xengine_log_error.inc