MDEV-6219: Server crashes in Bitmap<64u>::merge (this=0x180, map2=...) on 2nd execution of PS with INSERT .. SELECT, derived_merge

Problem: Not all permanent Item_direct_view_ref was in permanent list of used items of the view.

Solution: Detect creating permenent view/derived table reference and put them in the permanent list at once.

1 files changed, 34 insertions, 1 deletions

diff --git a/mysql-test/t/derived.test b/mysql-test/t/derived.test
index ddce7f55292..d98e7b56905 100644
--- a/mysql-test/t/derived.test
+++ b/mysql-test/t/derived.test
@@ -492,7 +492,38 @@ update t1 set balance=(select sum(balance) from (SELECT balance FROM t1 where ac
 set optimizer_switch=@save_derived_optimizer_switch_bug;
 drop table t1;
 
-set optimizer_switch=@save_derived_optimizer_switch;
+--echo #
+--echo # MDEV-6219:Server crashes in Bitmap<64u>::merge
+--echo # (this=0x180, map2=...) on 2nd execution of PS with INSERT .. SELECT,
+--echo # derived_merge
+--echo #
+
+CREATE TABLE t1 (a VARCHAR(8)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('foo'),('bar');
+
+create procedure p1()
+  INSERT INTO t1 SELECT * FROM ( 
+    SELECT * FROM t1
+  ) AS sq
+  WHERE sq.a IN ( SELECT 'baz' FROM DUAL );
+
+call p1();
+call p1();
+drop procedure p1;
+
+PREPARE stmt FROM "
+  INSERT INTO t1 SELECT * FROM ( 
+    SELECT * FROM t1
+  ) AS sq
+  WHERE sq.a IN ( SELECT 'baz' FROM DUAL ) 
+";
+
+EXECUTE stmt;
+EXECUTE stmt;
+
+deallocate prepare stmt;
+
+drop table t1;
 
 --echo #
 --echo # MDEV-6892: WHERE does not apply
@@ -506,3 +537,5 @@ select x.id, message from (select id from t1) x left join
 (select id, 1 as message from t2) y on x.id=y.id
 where coalesce(message,0) <> 0;
 drop table t1,t2;
+
+set optimizer_switch=@save_derived_optimizer_switch;