Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 131 insertions, 0 deletions

diff --git a/mysql-test/main/limit.test b/mysql-test/main/limit.test
new file mode 100644
index 00000000..668d3b74
--- /dev/null
+++ b/mysql-test/main/limit.test
@@ -0,0 +1,131 @@
+#
+# Test of update and delete with limit
+#
+
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+create table t1 (a int not null default 0 primary key, b int not null default 0);
+insert into t1 () values ();		# Testing default values
+insert into t1 values (1,1),(2,1),(3,1);
+update t1 set a=4 where b=1 limit 1;
+select * from t1;
+update t1 set b=2 where b=1 limit 2;
+select * from t1;
+update t1 set b=4 where b=1;
+select * from t1;
+delete from t1 where b=2 limit 1;
+select * from t1;
+delete from t1 limit 1;
+select * from t1;
+drop table t1;
+
+create table t1 (i int);
+insert into t1 (i) values(1),(1),(1);
+delete from t1 limit 1;
+update t1 set i=2 limit 1;
+delete from t1 limit 0;
+update t1 set i=3 limit 0;
+select * from t1;
+drop table t1;
+
+# LIMIT 0
+
+select 0 limit 0;
+
+#
+# Test with DELETE, ORDER BY and limit (bug #1024)
+#
+
+CREATE TABLE t1(id int auto_increment primary key, id2 int, index(id2)); 
+INSERT INTO t1 (id2) values (0),(0),(0);
+DELETE FROM t1 WHERE id=1;
+INSERT INTO t1 SET id2=0;
+SELECT * FROM t1; 
+DELETE FROM t1 WHERE id2 = 0 ORDER BY id LIMIT 1; 
+# should have deleted WHERE id=2 
+SELECT * FROM t1; 
+DELETE FROM t1 WHERE id2 = 0 ORDER BY id desc LIMIT 1; 
+SELECT * FROM t1;
+DROP TABLE t1;
+
+#
+# Bug#8023 - limit on UNION with from DUAL, causes syntax error
+#
+create table t1 (a integer);
+insert into t1 values (1);
+# both queries must return one row
+select 1 as a from t1 union all select 1 from dual limit 1;
+(select 1 as a from t1) union all (select 1 from dual) limit 1;
+drop table t1;
+
+#
+# Bug #21787: COUNT(*) + ORDER BY + LIMIT returns wrong result
+#
+create table t1 (a int);
+insert into t1 values (1),(2),(3),(4),(5),(6),(7);
+explain select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
+select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
+explain select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
+select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
+drop table t1;
+# End of 4.1 tests
+
+#
+# Bug #28464: a string argument to 'limit ?' PS
+#
+
+prepare s from "select 1 limit ?";
+set @a='qwe';
+execute s using @a;
+set @a=-1;
+--error ER_WRONG_ARGUMENTS
+execute s using @a;
+prepare s from "select 1 limit 1, ?";
+--error ER_WRONG_ARGUMENTS
+execute s using @a;
+prepare s from "select 1 limit ?, ?";
+--error ER_WRONG_ARGUMENTS
+execute s using @a, @a;
+set @a=14632475938453979136;
+execute s using @a, @a;
+set @a=-14632475938453979136;
+--error ER_WRONG_ARGUMENTS
+execute s using @a, @a;
+
+--echo End of 5.0 tests
+
+#
+# Bug#37075: offset of limit clause might be truncated to 0 on 32-bits server w/o big tables
+#
+
+select 1 as a limit 4294967296,10;
+
+#
+# Test for LIMIT X OFFSET Y
+#
+
+CREATE TABLE t1 (a int PRIMARY KEY auto_increment);
+INSERT INTO t1 VALUES (),(),(),(),(),(),(),(),(),();
+INSERT INTO t1 VALUES (),(),(),(),(),(),(),(),(),();
+SELECT a FROM t1 ORDER BY a LIMIT 10 OFFSET 1;
+SELECT a FROM t1 ORDER BY a LIMIT 10 OFFSET 10;
+SELECT a FROM t1 ORDER BY a LIMIT 2 OFFSET 14;
+DROP TABLE t1;
+
+--echo End of 5.1 tests
+
+--echo #
+--echo # mdev-16235: SELECT over a table with LIMIT 0
+--echo #
+
+EXPLAIN
+SELECT * FROM mysql.slow_log WHERE sql_text != 'foo' LIMIT 0;
+SELECT * FROM mysql.slow_log WHERE sql_text != 'foo' LIMIT 0;
+
+EXPLAIN
+SELECT * FROM mysql.help_topic WHERE help_category_id != example LIMIT 0;
+SELECT * FROM mysql.help_topic WHERE help_category_id != example LIMIT 0;
+
+--echo End of 5.5 tests