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MDEV-10657: incorrect result returned with binary protocol (prepared statements)

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If translation table present when we materialize the derived table then
change it to point to the materialized table.

Added debug info to see really what happens with what derived.
This commit is contained in:
Oleksandr Byelkin
2017-12-20 13:52:27 +01:00
committed by Oleksandr Byelkin
parent 924db8b4ed
commit 462808f3b6
6 changed files with 96 additions and 3 deletions
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18
mysql-test/r/ps.result
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@@ -4316,4 +4316,22 @@ set join_cache_level=@join_cache_level_save;
deallocate prepare stmt;
drop view v1,v2,v3;
drop table t1,t2,t3;
#
# MDEV-10657: incorrect result returned with binary protocol
# (prepared statements)
#
create table t1 (code varchar(10) primary key);
INSERT INTO t1(code) VALUES ('LINE1'), ('LINE2'), ('LINE3');
SELECT X.*
FROM
(SELECT CODE, RN
FROM
(SELECT A.CODE, @cnt := @cnt + 1 AS RN
FROM t1 A, (SELECT @cnt := 0) C) T
) X;
CODE RN
LINE1 1
LINE2 2
LINE3 3
drop table t1;
# End of 5.5 tests