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-rw-r--r--mysql-test/main/distinct.result24
1 files changed, 22 insertions, 2 deletions
diff --git a/mysql-test/main/distinct.result b/mysql-test/main/distinct.result
index 70bce519ad2..8fcc45e740a 100644
--- a/mysql-test/main/distinct.result
+++ b/mysql-test/main/distinct.result
@@ -173,9 +173,9 @@ INSERT INTO t2 values (1),(2),(3);
INSERT INTO t3 VALUES (1,'1'),(2,'2'),(1,'1'),(2,'2');
explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
-1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 4 Using where; Using temporary
+1 SIMPLE t2 index a a 4 NULL 5 Using index; Using temporary
+1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 Using where
1 SIMPLE t3 ref a a 5 test.t1.b 2 Using index
-1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Using join buffer (flat, BNL join)
SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
a
1
@@ -1049,4 +1049,24 @@ b1+'0' b2+'0' b3+'0' b4+'0' b5+'0' b6 +'0'
1 0 0 1 0 1
0 1 0 0 1 0
DROP TABLE t1;
+#
+# MDEV-12575: Server crash in AGGR_OP::put_record or in JOIN_CACHE::free
+# or Invalid write in JOIN::make_aggr_tables_info
+#
+CREATE TABLE t1 (pk INT PRIMARY KEY);
+INSERT INTO t1 VALUES (1),(2);
+explain
+( SELECT DISTINCT 1 FROM t1 ORDER BY BENCHMARK(1, MIN(pk)) )
+UNION
+( SELECT DISTINCT 1 FROM t1 ORDER BY BENCHMARK(1, MIN(pk)) );
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 index NULL PRIMARY 4 NULL 2 Using index; Using temporary
+2 UNCACHEABLE UNION t1 index NULL PRIMARY 4 NULL 2 Using index; Using temporary
+NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
+( SELECT DISTINCT 1 FROM t1 ORDER BY BENCHMARK(1, MIN(pk)) )
+UNION
+( SELECT DISTINCT 1 FROM t1 ORDER BY BENCHMARK(1, MIN(pk)) );
+1
+1
+drop table t1;
End of 5.5 tests