初版

build/lib/mysql/mysql-test/r/truncate.result

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+drop table if exists t1;
+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;