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mariadb/mysql-test/t/delete.test
unknown e7026604e9 A nasty fix when all rows are deleted with a write lock
sql/mysqld.cc:
  Some spelling checking error corrections a la Paul Dubois
2002-08-30 22:17:24 +03:00

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#
# Check for problems with delete
#
drop table if exists t1;
CREATE TABLE t1 (a tinyint(3), b tinyint(5));
INSERT INTO t1 VALUES (1,1);
INSERT LOW_PRIORITY INTO t1 VALUES (1,2);
INSERT INTO t1 VALUES (1,3);
DELETE from t1 where a=1 limit 1;
DELETE LOW_PRIORITY from t1 where a=1;
INSERT INTO t1 VALUES (1,1);
DELETE from t1;
LOCK TABLE t1 write;
INSERT INTO t1 VALUES (1,2);
DELETE from t1;
UNLOCK TABLES;
INSERT INTO t1 VALUES (1,2);
SET AUTOCOMMIT=0;
DELETE from t1;
SET AUTOCOMMIT=1;
drop table t1;
#
# Test of delete when the delete will cause a node to disappear and reappear
# (This assumes a block size of 1024)
#
create table t1 (a bigint not null, primary key (a,a,a,a,a,a,a,a,a,a));
insert into t1 values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
delete from t1 where a=26;
drop table t1;
create table t1 (a bigint not null, primary key (a,a,a,a,a,a,a,a,a,a));
insert into t1 values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
delete from t1 where a=27;
drop table t1;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1), (2), (3);
LOCK TABLES t1 WRITE;
DELETE FROM t1;
OPTIMIZE TABLE t1;
SELECT * FROM t1;
CHECK TABLE t1;
drop table if exists t1;