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BUG#14026: When doing the end-of-prepare fix up for TABLE_LISTs used in the PS, do the fixup

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for underlying tables of a merge VIEWs, too.
This commit is contained in:
sergefp@mysql.com
2005-11-02 07:05:19 +03:00
parent 3612707c71
commit 96ff1e808a
3 changed files with 75 additions and 12 deletions
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23
mysql-test/r/view.result
View File

@ -1,4 +1,4 @@
drop table if exists t1,t2,t9,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop table if exists t1,t2,t3,t4,t9,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop view if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop database if exists mysqltest;
use test;
@ -2323,3 +2323,24 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 Using where
DROP VIEW v1,v2;
DROP TABLE t1,t2,t3;
create table t1 (x int, y int);
create table t2 (x int, y int, z int);
create table t3 (x int, y int, z int);
create table t4 (x int, y int, z int);
create view v1 as
select t1.x
from (
(t1 join t2 on ((t1.y = t2.y)))
join
(t3 left join t4 on (t3.y = t4.y) and (t3.z = t4.z))
);
prepare stmt1 from "select count(*) from v1 where x = ?";
set @parm1=1;
execute stmt1 using @parm1;
count(*)
0
execute stmt1 using @parm1;
count(*)
0
drop view v1;
drop table t1,t2,t3,t4;

24
mysql-test/t/view.test
View File

@ -1,5 +1,5 @@
--disable_warnings
drop table if exists t1,t2,t9,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop table if exists t1,t2,t3,t4,t9,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop view if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop database if exists mysqltest;
--enable_warnings
@ -2189,4 +2189,26 @@ EXPLAIN SELECT * FROM v2 WHERE a=1;
DROP VIEW v1,v2;
DROP TABLE t1,t2,t3;
#
# BUG#14026 Crash on second PS execution when using views
#
create table t1 (x int, y int);
create table t2 (x int, y int, z int);
create table t3 (x int, y int, z int);
create table t4 (x int, y int, z int);
create view v1 as
select t1.x
from (
(t1 join t2 on ((t1.y = t2.y)))
join
(t3 left join t4 on (t3.y = t4.y) and (t3.z = t4.z))
);
prepare stmt1 from "select count(*) from v1 where x = ?";
set @parm1=1;
execute stmt1 using @parm1;
execute stmt1 using @parm1;
drop view v1;
drop table t1,t2,t3,t4;

40
sql/sql_lex.cc
View File

@ -2037,6 +2037,35 @@ void st_lex::cleanup_after_one_table_open()
}
/*
Do end-of-prepare fixup for list of tables and their merge-VIEWed tables
SYNOPSIS
fix_prepare_info_in_table_list()
thd Thread handle
tbl List of tables to process
DESCRIPTION
Perform end-end-of prepare fixup for list of tables, if any of the tables
is a merge-algorithm VIEW, recursively fix up its underlying tables as
well.
*/
static void fix_prepare_info_in_table_list(THD *thd, TABLE_LIST *tbl)
{
for (; tbl; tbl= tbl->next_local)
{
if (tbl->on_expr)
{
tbl->prep_on_expr= tbl->on_expr;
tbl->on_expr= tbl->on_expr->copy_andor_structure(thd);
}
fix_prepare_info_in_table_list(thd, tbl->merge_underlying_list);
}
}
/*
fix some structures at the end of preparation
@ -2056,16 +2085,7 @@ void st_select_lex::fix_prepare_information(THD *thd, Item **conds)
prep_where= *conds;
*conds= where= prep_where->copy_andor_structure(thd);
}
for (TABLE_LIST *tbl= (TABLE_LIST *)table_list.first;
tbl;
tbl= tbl->next_local)
{
if (tbl->on_expr)
{
tbl->prep_on_expr= tbl->on_expr;
tbl->on_expr= tbl->on_expr->copy_andor_structure(thd);
}
}
fix_prepare_info_in_table_list(thd, (TABLE_LIST *)table_list.first);
}
}