mysql5/mysql-5.7.27/mysql-test/t/opt_hints_pfs.test

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--source include/not_embedded.inc
--source include/have_perfschema.inc
--source include/no_protocol.inc
--echo #
--echo # Bug #21286261: QUERY DIGEST DOES NOT REFLECT NEW OPTIMIZER HINTS
--echo #
CREATE TABLE t1(i INT);
CREATE TABLE t2(i INT);
let $check=SELECT digest, digest_text FROM performance_schema.events_statements_history ORDER BY timer_start DESC LIMIT 2;
--echo # Digests should be same (empty hint comment):
--disable_result_log
SELECT * FROM t1;
SELECT /*+ */ * FROM t1;
--enable_result_log
eval $check;
--echo # Digests should be different:
--disable_result_log
SELECT * FROM t1, t2;
SELECT /*+
BKA(t1@qb1)
BNL(@qb1 t1)
DUPSWEEDOUT
FIRSTMATCH
INTOEXISTS
LOOSESCAN
MATERIALIZATION
MRR(t1)
NO_BKA(t2)
NO_BNL(t2)
NO_ICP(t2)
NO_MRR(t2)
NO_RANGE_OPTIMIZATION(t2)
NO_SEMIJOIN(t2)
QB_NAME(qb1)
SEMIJOIN(t1)
SUBQUERY(t1)
*/ * FROM t1, t2;
--enable_result_log
eval $check;
--disable_result_log
SELECT * FROM t2, t1;
SELECT /*+ MAX_EXECUTION_TIME(10) */ * FROM t2, t1;
--enable_result_log
eval $check;
--disable_result_log
SELECT 1;
SELECT /*+ bad_hint_also_goes_to_digest */ 1;
--enable_result_log
eval $check;
DROP TABLE t1, t2;
--echo #