mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 02:46:29 +01:00
2e404c9850
Item_func_equal erroneously derived is_null() from the parent class. Overriding it to return false because <=> can never return NULL.
61 lines
1.4 KiB
Text
61 lines
1.4 KiB
Text
# Initialise
|
|
--disable_warnings
|
|
drop table if exists t1,t2;
|
|
--enable_warnings
|
|
|
|
#
|
|
# Testing of the <=> operator
|
|
#
|
|
|
|
#
|
|
# First some simple tests
|
|
#
|
|
|
|
select 0<=>0,0.0<=>0.0,0E0=0E0,"A"<=>"A",NULL<=>NULL;
|
|
select 1<=>0,0<=>NULL,NULL<=>0;
|
|
select 1.0<=>0.0,0.0<=>NULL,NULL<=>0.0;
|
|
select "A"<=>"B","A"<=>NULL,NULL<=>"A";
|
|
select 0<=>0.0, 0.0<=>0E0, 0E0<=>"0", 10.0<=>1E1, 10<=>10.0, 10<=>1E1;
|
|
select 1.0<=>0E1,10<=>NULL,NULL<=>0.0, NULL<=>0E0;
|
|
|
|
#
|
|
# Test with tables
|
|
#
|
|
|
|
create table t1 (id int, value int);
|
|
create table t2 (id int, value int);
|
|
|
|
insert into t1 values (1,null);
|
|
insert into t2 values (1,null);
|
|
|
|
select t1.*, t2.*, t1.value<=>t2.value from t1, t2 where t1.id=t2.id and t1.id=1;
|
|
select * from t1 where id <=>id;
|
|
select * from t1 where value <=> value;
|
|
select * from t1 where id <=> value or value<=>id;
|
|
drop table t1,t2;
|
|
|
|
#
|
|
# Bug #12612: quoted bigint unsigned value and the use of "in" in where clause
|
|
#
|
|
create table t1 (a bigint unsigned);
|
|
insert into t1 values (4828532208463511553);
|
|
select * from t1 where a = '4828532208463511553';
|
|
select * from t1 where a in ('4828532208463511553');
|
|
drop table t1;
|
|
|
|
--echo #End of 4.1 tests
|
|
|
|
|
|
--echo # Start of 10.5 tests
|
|
|
|
--echo #
|
|
--echo # MDEV-21029 Incorrect result for expression with the <=> operator and IS NULL
|
|
--echo #
|
|
|
|
CREATE TABLE t0(c0 INT);
|
|
INSERT INTO t0 VALUES (1);
|
|
SELECT (c0 > (NULL <=> 0)) IS NULL AS c1 FROM t0;
|
|
DROP TABLE t0;
|
|
|
|
|
|
--echo # End of 10.5 tests
|