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Fixes bug #14569. When no db is selected as current and we do create procedure db.sp()...

we changing current db temporarily and restore it when sp is created. however thd->db
in this case becomes empty string rather than NULL and so all checks of thd->db == NULL 
will be false. So if after this we'll issue create procedure sp2()... without specifying
db it will succeed and create sp with db=NULL, which causes mysqldto crash on 
show procedure status statement.

This patch fixes the problem.


mysql-test/r/sp-error.result:
  Result for bug #14569.
mysql-test/t/sp-error.test:
  Test for bug #14569.
sql/sql_db.cc:
  Fixes bug #14569. When no db is selected as current and we do create procedure db.sp()...
  we changing current db temporarily and restore it when sp is created. however thd->db
  in this case becomes empty string rather than NULL and so all checks of thd->db == NULL 
  will be false. This patch fixes this issue.
sql/sql_parse.cc:
  Fixes bug #14569. Reverted from initial patch to check thd->db for null values only.
This commit is contained in:
unknown
2005-11-11 21:01:48 +03:00
parent cb38411696
commit 1c677f8c55
4 changed files with 41 additions and 3 deletions

View File

@ -916,3 +916,16 @@ ERROR 42S22: Unknown column 'bug13037_foo' in 'field list'
DROP PROCEDURE bug13037_p1;
DROP PROCEDURE bug13037_p2;
DROP PROCEDURE bug13037_p3;
create database mysqltest1;
create database mysqltest2;
use mysqltest1;
drop database mysqltest1;
create procedure mysqltest2.p1() select version();
create procedure p2() select version();
ERROR 3D000: No database selected
use mysqltest2;
show procedure status;
Db Name Type Definer Modified Created Security_type Comment
mysqltest2 p1 PROCEDURE root@localhost 0000-00-00 00:00:00 0000-00-00 00:00:00 DEFINER
drop database mysqltest2;
use test;