# Bug#22284224 - "REWRITE REPOPULATION OF CHARACTER SETS AND
# COLLATIONS DURING STARTUP" causes purge activity on every
# startup. So we need a debug way to stop purge
# The test can be made non-debug after fixing this bug
source include/have_debug.inc;

--echo #
--echo # BUG#20080942 - ADAPTIVE_HASH_SEARCHES_BTREE NOT UPDATED
--echo #

CREATE TABLE t1(a INT PRIMARY KEY, b BLOB) STATS_PERSISTENT=0;

# To make sure that the change buffer is empty
SET GLOBAL innodb_fast_shutdown=0;
--source include/restart_mysqld.inc

# temporary workaround for Bug#22284224
SET GLOBAL innodb_purge_stop_now = ON;

# To load mysql.* tables into cache
SELECT COUNT(*) FROM t1;

--disable_query_log
SET GLOBAL DEBUG='+d, non_ahi_search';
--enable_query_log

let $start=`SELECT COUNT FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE NAME LIKE
'adaptive_hash_searches_btree' ORDER BY NAME`;

INSERT INTO t1 VALUES(1, 'abc');
INSERT INTO t1 VALUES(2, 'def');
INSERT INTO t1 VALUES(3, 'ghi');
SELECT * FROM t1;

--disable_query_log
SET GLOBAL DEBUG='-d, non_ahi_search';
--enable_query_log

let $end=`SELECT COUNT FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE NAME LIKE
'adaptive_hash_searches_btree' ORDER BY NAME`;

let $diff=`SELECT $end-$start`;

if ($diff != 3) {
	echo "Unexpected count: $diff";
}

DROP TABLE t1;
# temporary workaround for Bug#22284224
SET GLOBAL innodb_purge_run_now = ON;