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create table t1 (a integer, b integer,c1 CHAR(10));
insert into t1 (a) values (1),(2);
truncate table t1;
select count(*) from t1;
count(*)
0
insert into t1 values(1,2,"test");
select count(*) from t1;
count(*)
1
delete from t1;
select * from t1;
a b c1
drop table t1;
select count(*) from t1;
ERROR 42S02: Table 'test.t1' doesn't exist
create temporary table t1 (n int);
insert into t1 values (1),(2),(3);
truncate table t1;
select * from t1;
n
drop table t1;
truncate non_existing_table;
ERROR 42S02: Table 'test.non_existing_table' doesn't exist
create table t1 (a integer auto_increment primary key);
insert into t1 (a) values (NULL),(NULL);
truncate table t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
a
1
2
delete from t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
a
3
4
drop table t1;
create temporary table t1 (a integer auto_increment primary key);
insert into t1 (a) values (NULL),(NULL);
truncate table t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
a
1
2
delete from t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
a
3
4
drop table t1;
create table t1 (s1 int);
insert into t1 (s1) values (1), (2), (3), (4), (5);
create view v1 as select * from t1;
truncate table v1;
ERROR 42S02: Table 'test.v1' doesn't exist
drop view v1;
drop table t1;
#
# Bug#20667 - Truncate table fails for a write locked table
#
CREATE TABLE t1 (c1 INT);
LOCK TABLE t1 WRITE;
INSERT INTO t1 VALUES (1);
SELECT * FROM t1;
c1
1
TRUNCATE TABLE t1;
SELECT * FROM t1;
c1
UNLOCK TABLES;
LOCK TABLE t1 READ;
TRUNCATE TABLE t1;
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
UNLOCK TABLES;
CREATE TABLE t2 (c1 INT);
LOCK TABLE t2 WRITE;
TRUNCATE TABLE t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
UNLOCK TABLES;
CREATE VIEW v1 AS SELECT t1.c1 FROM t1,t2 WHERE t1.c1 = t2.c1;
INSERT INTO t1 VALUES (1), (2), (3);
INSERT INTO t2 VALUES (1), (3), (4);
SELECT * FROM v1;
c1
1
3
TRUNCATE v1;
ERROR 42S02: Table 'test.v1' doesn't exist
SELECT * FROM v1;
c1
1
3
LOCK TABLE t1 WRITE;
SELECT * FROM v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
TRUNCATE v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
SELECT * FROM v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
UNLOCK TABLES;
LOCK TABLE t1 WRITE, t2 WRITE;
SELECT * FROM v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
TRUNCATE v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
SELECT * FROM v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
UNLOCK TABLES;
LOCK TABLE v1 WRITE;
SELECT * FROM v1;
c1
1
3
TRUNCATE v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
SELECT * FROM v1;
c1
1
3
UNLOCK TABLES;
LOCK TABLE t1 WRITE, t2 WRITE, v1 WRITE;
SELECT * FROM v1;
c1
1
3
TRUNCATE v1;
ERROR HY000: Table 'v1' was not locked with LOCK TABLES
SELECT * FROM v1;
c1
1
3
UNLOCK TABLES;
DROP VIEW v1;
DROP TABLE t1, t2;
CREATE PROCEDURE p1() SET @a = 5;
TRUNCATE p1;
ERROR 42S02: Table 'test.p1' doesn't exist
SHOW CREATE PROCEDURE p1;
Procedure sql_mode Create Procedure character_set_client collation_connection Database Collation
p1 STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`()
SET @a = 5 latin1 latin1_swedish_ci latin1_swedish_ci
DROP PROCEDURE p1;
#
# Bug#46452 Crash in MDL, HANDLER OPEN + TRUNCATE TABLE
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 AS SELECT 1 AS f1;
HANDLER t1 OPEN;
# Here comes the crash.
TRUNCATE t1;
# Currently TRUNCATE, just like other DDL, implicitly closes
# open HANDLER table.
HANDLER t1 READ FIRST;
ERROR 42S02: Unknown table 't1' in HANDLER
DROP TABLE t1;
#
# End of 5.5 tests
#
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