diff options
Diffstat (limited to 'mysql-test/main/opt_trace.test')
-rw-r--r-- | mysql-test/main/opt_trace.test | 77 |
1 files changed, 70 insertions, 7 deletions
diff --git a/mysql-test/main/opt_trace.test b/mysql-test/main/opt_trace.test index 0cacc4a60ea..3f1f1fd1204 100644 --- a/mysql-test/main/opt_trace.test +++ b/mysql-test/main/opt_trace.test @@ -702,6 +702,76 @@ DROP VIEW v; DROP TABLE t; --echo # +--echo # MDEV-26301: Split optimization improvements: Optimizer Trace coverage +--echo # + +# 5 values +create table t1(a int, b int); +insert into t1 select seq,seq from seq_1_to_5; + +# 5 value groups of size 2 each +create table t2(a int, b int, key(a)); +insert into t2 +select A.seq,B.seq from seq_1_to_25 A, seq_1_to_2 B; + +# 5 value groups of size 3 each +create table t3(a int, b int, key(a)); +insert into t3 +select A.seq,B.seq from seq_1_to_5 A, seq_1_to_3 B; + +analyze table t1,t2,t3 persistent for all; + +create table t10 ( + grp_id int, + col1 int, + key(grp_id) +); + +# 100 groups of 100 values each +insert into t10 +select + A.seq, + B.seq +from + seq_1_to_100 A, + seq_1_to_100 B; + +# and X10 multiplier +create table t11 ( + col1 int, + col2 int +); +insert into t11 +select A.seq, A.seq from seq_1_to_10 A; + +analyze table t10,t11 persistent for all; + +set optimizer_trace=1; +explain +select * from + ( + (t1 left join t2 on t2.a=t1.b) + left join t3 on t3.a=t1.b + ) left join (select grp_id, count(*) + from t10 left join t11 on t11.col1=t10.col1 + group by grp_id) T on T.grp_id=t1.b; + +select json_detailed(json_extract(trace, '$**.check_split_materialized')) as JS +from information_schema.optimizer_trace; + +select + json_detailed( + json_remove( + json_extract(trace, '$**.choose_best_splitting') + , '$[0].split_plan_search[0]' + ) + ) as JS +from information_schema.optimizer_trace; + +drop table t1,t2,t3,t10,t11; +set optimizer_trace=DEFAULT; + +--echo # --echo # End of 10.4 tests --echo # @@ -909,13 +979,6 @@ from information_schema.optimizer_trace; --enable_view_protocol -# Same as above. just to show that splitting plan has some coverage in the -# trace. -select - json_detailed(json_extract(trace, '$**.lateral_derived')) -from - information_schema.optimizer_trace; - drop table t1,t2; --echo # |