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authorunknown <sanja@montyprogram.com>2012-02-14 16:52:56 +0200
committerunknown <sanja@montyprogram.com>2012-02-14 16:52:56 +0200
commit764eeeee74f999fe2107fc362236563be0025093 (patch)
tree8af3359111969a90c2670d887c5ef79262aab74f /mysql-test/r/derived_opt.result
parent7ab53e80627e54c6dece486bf0b059436b7e5777 (diff)
downloadmariadb-git-764eeeee74f999fe2107fc362236563be0025093.tar.gz
Fix for LP BUG#910123 MariaDB 5.3.3 causes 1093 error on Drupal
Problem was that now we can merge derived table (subquery in the FROM clause). Fix: in case of detected conflict and presence of derived table "over" the table which cased the conflict - try materialization strategy.
Diffstat (limited to 'mysql-test/r/derived_opt.result')
-rw-r--r--mysql-test/r/derived_opt.result9
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/r/derived_opt.result b/mysql-test/r/derived_opt.result
index 721d4277775..c5376bee756 100644
--- a/mysql-test/r/derived_opt.result
+++ b/mysql-test/r/derived_opt.result
@@ -273,4 +273,13 @@ ON alias3.f4 != 0
) ON alias3.f4 != 0;
f4 f4 f2 f4
drop table t1,t2,t3,t4;
+#
+# LP BUG#910123 MariaDB 5.3.3 causes 1093 error on Drupal
+# Fix: force materialization in case of conflict
+#
+SET optimizer_switch='derived_merge=on';
+CREATE TABLE t1 ( i INT );
+INSERT INTO t1 VALUES ( (SELECT 1 FROM ( SELECT * FROM t1 ) as a) );
+drop table t1;
+set optimizer_switch=@save_optimizer_switch;
set optimizer_switch=@exit_optimizer_switch;