Assertion `!derived->first_select()->exclude_from_table_unique_test || derived->outer_select()-> exclude_from_table_unique_test' failed on 2nd execution of PS with derived_merge

SET optimizer_switch = 'derived_merge=on';

CREATE TABLE t1 (a INT);

INSERT INTO t1 VALUES (1),(2);

CREATE TABLE t2 (b INT);

INSERT INTO t2 VALUES (1),(2);

PREPARE stmt FROM '

  INSERT INTO t1 SELECT * FROM t2 UNION SELECT * FROM (SELECT * FROM t1) AS sq  

';

EXECUTE stmt;

EXECUTE stmt;

mysqld: table.cc:4438: void TABLE_LIST::set_check_merged(): Assertion `!derived->first_select()->exclude_from_table_unique_test || derived->outer_select()-> exclude_from_table_unique_test' failed.

#6  0x00007fb0847f0621 in *__GI___assert_fail (assertion=0xd36e28 "!derived->first_select()->exclude_from_table_unique_test || derived->outer_select()-> exclude_from_table_unique_test", file=<optimized out>, line=4438, function=0xd386a0 "void TABLE_LIST::set_check_merged()") at assert.c:81

#7  0x00000000007207c3 in TABLE_LIST::set_check_merged (this=0x1f5b3d0) at table.cc:4436

#8  0x00000000007249b1 in TABLE_LIST::set_merged_derived (this=0x1f5b3d0) at table.h:1796

#9  0x00000000007241c9 in TABLE_LIST::init_derived (this=0x1f5b3d0, thd=0x1ea0b88, init_view=true) at table.cc:6034

#10 0x00000000008b28d6 in mysql_derived_init (thd=0x1ea0b88, lex=0x1f57958, derived=0x1f5b3d0) at sql_derived.cc:542

#11 0x00000000008b1f24 in mysql_handle_derived (lex=0x1f57958, phases=1) at sql_derived.cc:112

#12 0x00000000007086b4 in open_and_lock_tables_derived (thd=0x1ea0b88, tables=0x1f58b80, derived=true) at sql_base.cc:5262

#13 0x00000000006bbd14 in open_and_lock_tables (thd=0x1ea0b88, tables=0x1f58b80) at mysql_priv.h:1826

#14 0x00000000006ae385 in mysql_execute_command (thd=0x1ea0b88) at sql_parse.cc:3305

#15 0x0000000000786882 in Prepared_statement::execute (this=0x1f57588, expanded_query=0x7fb07bd0ccb0, open_cursor=false) at sql_prepare.cc:3764

#16 0x0000000000785acf in Prepared_statement::execute_loop (this=0x1f57588, expanded_query=0x7fb07bd0ccb0, open_cursor=false, packet=0x0, packet_end=0x0) at sql_prepare.cc:3445

#17 0x0000000000783f26 in mysql_sql_stmt_execute (thd=0x1ea0b88) at sql_prepare.cc:2670

#18 0x00000000006ab6f6 in mysql_execute_command (thd=0x1ea0b88) at sql_parse.cc:2314

#19 0x00000000006b6e93 in mysql_parse (thd=0x1ea0b88, rawbuf=0x1f248c0 "EXECUTE stmt", length=12, found_semicolon=0x7fb07bd0dcb8) at sql_parse.cc:6173

#20 0x00000000006a8ea8 in dispatch_command (command=COM_QUERY, thd=0x1ea0b88, packet=0x1f1b459 "EXECUTE stmt", packet_length=12) at sql_parse.cc:1243

#21 0x00000000006a8194 in do_command (thd=0x1ea0b88) at sql_parse.cc:923

#22 0x00000000006a5025 in handle_one_connection (arg=0x1ea0b88) at sql_connect.cc:1231

#23 0x00007fb0854fcb50 in start_thread (arg=<optimized out>) at pthread_create.c:304

#24 0x00007fb08489fa7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

revision-id: igor@askmonty.org-20140221052733-ypg4dpfcmy5l0b3q

date: 2014-02-20 21:27:33 -0800

build-date: 2014-02-26 03:02:19 +0400

revno: 3765

branch-nick: 5.3

BUILD/compile-pentium-debug-max-no-ndb