drop table if exists t1,t2; create table t1 ( n int auto_increment primary key); lock tables t1 write; insert into t1 values(NULL); unlock tables; check table t1; Table Op Msg_type Msg_text test.t1 check status OK lock tables t1 write, t1 as t0 read; insert into t1 values(NULL); unlock tables; check table t1; Table Op Msg_type Msg_text test.t1 check status OK lock tables t1 write, t1 as t0 read, t1 as t2 read; insert into t1 values(NULL); unlock tables; check table t1; Table Op Msg_type Msg_text test.t1 check status OK lock tables t1 write, t1 as t0 write, t1 as t2 read; insert into t1 values(NULL); unlock tables; check table t1; Table Op Msg_type Msg_text test.t1 check status OK lock tables t1 write, t1 as t0 write, t1 as t2 read, t1 as t3 read; insert into t1 values(NULL); unlock tables; check table t1; Table Op Msg_type Msg_text test.t1 check status OK lock tables t1 write, t1 as t0 write, t1 as t2 write; insert into t1 values(NULL); unlock tables; check table t1; Table Op Msg_type Msg_text test.t1 check status OK drop table t1; CREATE TABLE t1 (a int); CREATE TABLE t2 (a int); lock tables t1 write,t1 as b write, t2 write, t2 as c read; drop table t1,t2; CREATE TABLE t1 (a int); CREATE TABLE t2 (a int); lock tables t1 write,t1 as b write, t2 write, t2 as c read; drop table t2,t1; unlock tables; create temporary table t1(f1 int); lock tables t1 write; insert into t1 values (1); show columns from t1; Field Type Null Key Default Extra f1 int(11) YES NULL NULL insert into t1 values(2); drop table t1; unlock tables; # # Bug#19988193 ASSERTION `(*TABLES)->REGINFO.LOCK_TYPE >= TL_READ' # FAILED IN LOCK_EXTERNAL # CREATE TABLE t1(a INT); CREATE PROCEDURE p1() CREATE VIEW v1 AS SELECT * FROM t1; # Create trigger calling proc creating view, when view DOES NOT # exist already CREATE TRIGGER trg_p1_t1 AFTER INSERT ON t1 FOR EACH ROW CALL p1(); # Verify that it is possible to lock table LOCK TABLES t1 WRITE; UNLOCK TABLES; # Fails, as expected INSERT INTO t1 VALUES (1); ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger. # Make sure v1 already exists CREATE VIEW v1 AS SELECT a+1 FROM t1; # Verify that it is possible to lock table LOCK TABLES t1 WRITE; UNLOCK TABLES; # Verify that we get the expected error when inserting into the table INSERT INTO t1 VALUES (1); ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger. # Cleanup DROP TRIGGER trg_p1_t1; DROP PROCEDURE p1; DROP VIEW v1; DROP TABLE t1; # # Bug#21198646 ASSERTION FAILED: (*TABLES)->REGINFO.LOCK_TYPE >= TL_READ # FILE LOCK.CC, LINE 356 # CREATE TABLE t2(a INT); # Create procedure p1 invoking RENAME TABLE CREATE PROCEDURE p1() RENAME TABLE t2 TO t3; # Create function f1 calling p1 CREATE FUNCTION f1() RETURNS INT BEGIN CALL p1(); RETURN 1; END $ # Invoke function f1 and verify that we get the expected error SELECT f1(); ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger. # Cleanup DROP PROCEDURE p1; DROP FUNCTION f1; DROP TABLE t2;