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of stored routines definitions even if we already have some tables open and locked. To avoid deadlocks in this case we have to put certain restrictions on locking of mysql.proc table. This allows to use stored routines safely under LOCK TABLES without explicitly mentioning mysql.proc in the list of locked tables. It also fixes bug #11554 "Server crashes on statement indirectly using non-cached function".
67 lines
1.5 KiB
Plaintext
67 lines
1.5 KiB
Plaintext
use test;
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drop table if exists t1;
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create table t1 (s1 int, s2 int, s3 int);
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create procedure bug4934()
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begin
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insert into t1 values (1,0,1);
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end//
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use test;
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call bug4934();
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select * from t1;
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s1 s2 s3
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1 0 1
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drop table t1;
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create table t1 (s1 int, s2 int, s3 int);
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drop procedure bug4934;
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create procedure bug4934()
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begin
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end//
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select * from t1;
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s1 s2 s3
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call bug4934();
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select * from t1;
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s1 s2 s3
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drop table t1;
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drop procedure bug4934;
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drop procedure if exists bug9486;
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drop table if exists t1, t2;
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create table t1 (id1 int, val int);
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create table t2 (id2 int);
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create procedure bug9486()
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update t1, t2 set val= 1 where id1=id2;
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call bug9486();
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lock tables t2 write;
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call bug9486();
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show processlist;
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Id User Host db Command Time State Info
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# root localhost test Sleep # NULL
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# root localhost test Query # Locked call bug9486()
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# root localhost test Query # NULL show processlist
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unlock tables;
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drop procedure bug9486;
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drop table t1, t2;
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drop procedure if exists bug11158;
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create procedure bug11158() delete t1 from t1, t2 where t1.id = t2.id;
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create table t1 (id int, j int);
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insert into t1 values (1, 1), (2, 2);
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create table t2 (id int);
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insert into t2 values (1);
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call bug11158();
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select * from t1;
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id j
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2 2
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lock tables t2 read;
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call bug11158();
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unlock tables;
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drop procedure bug11158;
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drop table t1, t2;
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drop function if exists bug11554;
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drop view if exists v1;
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create table t1 (i int);
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create function bug11554 () returns int return 1;
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create view v1 as select bug11554() as f;
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insert into t1 (select f from v1);
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drop function bug11554;
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drop table t1;
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drop view v1;
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