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#
# Bug #21286261: QUERY DIGEST DOES NOT REFLECT NEW OPTIMIZER HINTS
#
CREATE TABLE t1(i INT);
CREATE TABLE t2(i INT);
# Digests should be same (empty hint comment):
SELECT * FROM t1;
SELECT /*+ */ * FROM t1;
SELECT digest, digest_text FROM performance_schema.events_statements_history ORDER BY timer_start DESC LIMIT 2;
digest digest_text
533c0a9cf0cf92d2c26e7fe8821735eb4a72c409aaca24f9f281d137427bfa9a SELECT * FROM `t1`
533c0a9cf0cf92d2c26e7fe8821735eb4a72c409aaca24f9f281d137427bfa9a SELECT * FROM `t1`
# Digests should be different:
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;
SELECT digest, digest_text FROM performance_schema.events_statements_history ORDER BY timer_start DESC LIMIT 2;
digest digest_text
03c23b7b6d0b10547ae67b64b3dd4230b929d6e482cf78644b441fc642285c70 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`
7c833a03681c8d9ce4afd30de8498e2a4df55e33e991770e5377e18d3c87da7f SELECT * FROM `t1` , `t2`
SELECT * FROM t2, t1;
SELECT /*+ MAX_EXECUTION_TIME(4294967295) */ * FROM t2, t1;
SELECT digest, digest_text FROM performance_schema.events_statements_history ORDER BY timer_start DESC LIMIT 2;
digest digest_text
49499e28818da99558537467bea1d841b2810139fbf30ff708d3c1e252a17ed1 SELECT /*+ MAX_EXECUTION_TIME (?) */ * FROM `t2` , `t1`
568bc14e215806a52933675c3be556c33b88d67162e61aab6ea1bc329e0995ab SELECT * FROM `t2` , `t1`
SELECT 1;
SELECT /*+ bad_hint_also_goes_to_digest */ 1;
SELECT digest, digest_text FROM performance_schema.events_statements_history ORDER BY timer_start DESC LIMIT 2;
digest digest_text
660eaaac8babcd7c6964f8930126fb336f78fae088ed4b15047e66e849b10722 SELECT /*+ `bad_hint_also_goes_to_digest` */ ?
d1b44b0c19af710b5a679907e284acd2ddc285201794bc69a2389d77baedddae SELECT ?
DROP TABLE t1, t2;
#
# WL#681: Hint to temporarily set session variable for current statement
#
SELECT 1;
SELECT /*+ SET_VAR(foo = 1K) */ 1;
SELECT digest, digest_text FROM performance_schema.events_statements_history ORDER BY timer_start DESC LIMIT 2;
digest digest_text
b1cae1a4252dec3b5cb92a58603115d5633c5f96e04d4aefe77e2154e3bcb1c3 SELECT /*+ SET_VAR ( `foo` = ? ) */ ?
d1b44b0c19af710b5a679907e284acd2ddc285201794bc69a2389d77baedddae SELECT ?
SELECT 1;
SELECT /*+ SET_VAR(bar = 'baz') */ 1;
SELECT digest, digest_text FROM performance_schema.events_statements_history ORDER BY timer_start DESC LIMIT 2;
digest digest_text
4faceab08ccc6439902860dc80451b6039dd37d43b297efb2680563a8dc629af SELECT /*+ SET_VAR ( `bar` = ? ) */ ?
d1b44b0c19af710b5a679907e284acd2ddc285201794bc69a2389d77baedddae SELECT ?
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