mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 04:22:27 +01:00
287661e66c
mysql_server_init() now returns error code if something went wrong (Bug #2062) Don't use my_fopen() when reading symlink information as this may cause problems when a lot of files are opened. Free thread keys with pthread_key_delete() instead of relying on automatic free. (Bug #2062) Fixed bug in UNION statement with alias '*'. (Bug #1249) Fixed a bug in DELETE ... ORDER BY ... LIMIT where the rows where not deleted in the proper order. (Bug #1024). FOUND_ROWS() could return incorrect number of rows after a query with an impossible WHERE condition. HOW DATABASES doesn't anymore show .sym files (on windows) that doesn't point to a valid directory. (Bug #1385) include/config-win.h: Ensure that USE_SYMDIR is set for all windows versions (This is set in makefiles, so this is just an extra safety measure) include/my_pthread.h: Fixed a possible memory leak on MacOSX when using the shared libmysql.so library (Bug #2061) include/my_sys.h: my_init() now returns error code if something went wrong include/mysql.h: mysql_once_init() now returns error code if something went wrong include/mysql_com.h: my_init() now returns error code if something went wrong libmysql/libmysql.c: mysql_server_init() and mysql_once_init() now returns error code if something went wrong (Bug #2062) mysql-test/r/limit.result: Update results mysql-test/r/select_found.result: Update results mysql-test/r/union.result: Update results mysql-test/t/limit.test: Added test for DELETE ... ORDER BY ... LIMIT (bug #1024) mysql-test/t/select_found.test: Added test for problem with impossible WHERE (Bug #1468) mysql-test/t/union.test: Added test for problem with alias '*' (Bug #1249) mysys/mf_pack.c: Don't use my_fopen() when reading symlink information as this may cause problems when a lot of files are opened. mysys/my_init.c: my_init() now returns error code if something went wrong mysys/my_lib.c: More debug information mysys/my_thr_init.c: Free thread keys with pthread_key_delete() instead of relying on automatic free. (Bug #2062) sql/sql_base.cc: Fixed bug in UNION statement with alias '*'. (Bug #1249) sql/sql_delete.cc: Fixed a bug in DELETE ... ORDER BY ... LIMIT where the rows where not deleted in the proper order. (Bug #1024). sql/sql_select.cc: FOUND_ROWS() could return incorrect number of rows after a query with an impossible WHERE condition. sql/sql_show.cc: SHOW DATABASES doesn't anymore show .sym files (on windows) that doesn't point to a valid directory. (Bug #1385) sql/sql_yacc.yy: Allow syntax UNION DISTINCT
69 lines
1.1 KiB
Text
69 lines
1.1 KiB
Text
drop table if exists t1;
|
|
create table t1 (a int primary key, b int not null);
|
|
insert into t1 () values ();
|
|
insert into t1 values (1,1),(2,1),(3,1);
|
|
update t1 set a=4 where b=1 limit 1;
|
|
select * from t1;
|
|
a b
|
|
0 0
|
|
4 1
|
|
2 1
|
|
3 1
|
|
update t1 set b=2 where b=1 limit 2;
|
|
select * from t1;
|
|
a b
|
|
0 0
|
|
4 2
|
|
2 2
|
|
3 1
|
|
update t1 set b=4 where b=1;
|
|
select * from t1;
|
|
a b
|
|
0 0
|
|
4 2
|
|
2 2
|
|
3 4
|
|
delete from t1 where b=2 limit 1;
|
|
select * from t1;
|
|
a b
|
|
0 0
|
|
2 2
|
|
3 4
|
|
delete from t1 limit 1;
|
|
select * from t1;
|
|
a b
|
|
2 2
|
|
3 4
|
|
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;
|
|
i
|
|
2
|
|
1
|
|
drop table t1;
|
|
select 0 limit 0;
|
|
0
|
|
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;
|
|
id id2
|
|
4 0
|
|
2 0
|
|
3 0
|
|
DELETE FROM t1 WHERE id2 = 0 ORDER BY id LIMIT 1;
|
|
SELECT * FROM t1;
|
|
id id2
|
|
4 0
|
|
3 0
|
|
DELETE FROM t1 WHERE id2 = 0 ORDER BY id desc LIMIT 1;
|
|
SELECT * FROM t1;
|
|
id id2
|
|
3 0
|
|
DROP TABLE t1;
|