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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
commit3f619478f796eddbba6e39502fe941b285dd97b1 (patch)
treee2c7b5777f728320e5b5542b6213fd3591ba51e2 /mysql-test/main/table_elim_debug.test
parentInitial commit. (diff)
downloadmariadb-3f619478f796eddbba6e39502fe941b285dd97b1.tar.xz
mariadb-3f619478f796eddbba6e39502fe941b285dd97b1.zip
Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'mysql-test/main/table_elim_debug.test')
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diff --git a/mysql-test/main/table_elim_debug.test b/mysql-test/main/table_elim_debug.test
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+#
+# Table elimination (MWL#17) tests that need debug build
+#
+# In MariaDB 5.3, one can switch table_elimination on/off without debug, too:
+## --source include/have_debug.inc
+
+--disable_warnings
+drop table if exists t1, t2;
+--enable_warnings
+
+# Check if optimizer_switch works
+
+create table t1 (a int);
+insert into t1 values (0),(1),(2),(3);
+
+create table t2 (a int primary key, b int)
+ as select a, a as b from t1 where a in (1,2);
+
+explain select t1.a from t1 left join t2 on t2.a=t1.a;
+
+set optimizer_switch='table_elimination=off';
+explain select t1.a from t1 left join t2 on t2.a=t1.a;
+set optimizer_switch='table_elimination=on';
+explain select t1.a from t1 left join t2 on t2.a=t1.a;
+set optimizer_switch='table_elimination=default';
+explain select t1.a from t1 left join t2 on t2.a=t1.a;
+
+drop table t1, t2;