database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-01 03:47:19 +03:00
Code Activity

MDEV-5535: Cannot reopen temporary table

Browse Source 
mysqld maintains a list of TABLE objects for all temporary
tables created within a session in THD. Here each table is
represented by a TABLE object.

A query referencing a particular temporary table for more
than once, however, failed with ER_CANT_REOPEN_TABLE error
because a TABLE_SHARE was allocate together with the TABLE,
so temporary tables always had only one TABLE per TABLE_SHARE.

This patch lift this restriction by separating TABLE and
TABLE_SHARE objects and storing TABLE_SHAREs for temporary
tables in a list in THD, and TABLEs in a list within their
respective TABLE_SHAREs.
This commit is contained in:
Nirbhay Choubey
2016-06-10 16:19:59 -04:00
parent 547511153f
commit 7305be2f7e
50 changed files with 2315 additions and 1260 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
mysql-test/r/create.result
View File

@ -1736,7 +1736,8 @@ drop view t1;
create table t1 (a int) select 1 as a;
create temporary table if not exists t1 (a int) select * from t1;
create temporary table if not exists t1 (a int) select * from t1;
ERROR HY000: Can't reopen table: 't1'
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
a
1