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BUG#41980 SBL, INSERT .. SELECT .. LIMIT = ERROR, even when @@SQL_LOG_BIN is 0 !

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When binlog_format is STATEMENT and the statement is unsafe before,
the unsafe warning/error message was issued without checking
whether the SQL_LOG_BIN was turned on or not.
      
Fixed with adding a sql_log_bin_toplevel flag in THD to check
whether SQL_LOG_BIN is ON in current session whatever the current is in sp or not.


mysql-test/suite/binlog/r/binlog_unsafe.result:
  Test case result for unsafe warning/error message
mysql-test/suite/binlog/t/binlog_unsafe.test:
  Test case for unsafe message warning/error
sql/set_var.cc:
  Adding a function set_option_log_bin_bit() which specailly handles to
  the change of SQL_LOG_BIN bit in order to set sql_log_bin_toplevel
  according to SQL_LOG_BIN current value at the same time.
sql/sql_class.cc:
  Initialize the flag sql_log_bin_toplevel in THD::init(),
  and add the condition to check whether unsafe ror message was issued.
sql/sql_class.h:
  Add a sql_log_bin_toplevel flag in THD to indicate whether the toplevel SQL_LOG_BIN is
This commit is contained in:
Guangbao Ni
2009-03-05 18:39:02 +00:00
parent 16c0631f0b
commit 4f0f021c33
5 changed files with 201 additions and 4 deletions
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83
mysql-test/suite/binlog/r/binlog_unsafe.result
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@ -227,3 +227,86 @@ UPDATE t1 SET b = '%s%s%s%s%s%s%s%s%s%s%s%s%s%s' WHERE a = 'a' LIMIT 1;
Warnings:
Warning 1592 Statement is not safe to log in statement format.
DROP TABLE t1;
DROP TABLE IF EXISTS t1, t2;
CREATE TABLE t1(i INT PRIMARY KEY);
CREATE TABLE t2(i INT PRIMARY KEY);
CREATE TABLE t3(i INT, ch CHAR(50));
"Should issue message Statement is not safe to log in statement format."
INSERT INTO t1 SELECT * FROM t2 LIMIT 1;
Warnings:
Warning 1592 Statement is not safe to log in statement format.
CREATE FUNCTION func6()
RETURNS INT
BEGIN
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (11);
INSERT INTO t1 VALUES (12);
RETURN 0;
END|
"Should issue message Statement is not safe to log in statement format only once"
INSERT INTO t3 VALUES(func6(), UUID());
Warnings:
Warning 1592 Statement is not safe to log in statement format.
"Check whether SET @@SQL_LOG_BIN = 0/1 doesn't work in substatements"
CREATE FUNCTION fun_check_log_bin() RETURNS INT
BEGIN
SET @@SQL_LOG_BIN = 0;
INSERT INTO t1 VALUES(@@global.sync_binlog);
RETURN 100;
END|
"One unsafe warning should be issued in the following statement"
SELECT fun_check_log_bin();
fun_check_log_bin()
100
Warnings:
Warning 1592 Statement is not safe to log in statement format.
"SQL_LOG_BIN should be ON still"
SHOW VARIABLES LIKE "SQL_LOG_BIN";
Variable_name Value
sql_log_bin ON
set @save_log_bin = @@SESSION.SQL_LOG_BIN;
set @@SESSION.SQL_LOG_BIN = 0;
"Should NOT have any warning message issued in the following statements"
INSERT INTO t1 SELECT * FROM t2 LIMIT 1;
DROP TABLE t1,t2;
"Should NOT have any warning message issued in the following func7() and trig"
CREATE TABLE t1 (a INT);
CREATE TABLE t2 (a CHAR(40));
CREATE TABLE trigger_table (a CHAR(7));
CREATE FUNCTION func7()
RETURNS INT
BEGIN
INSERT INTO t1 VALUES (@@global.sync_binlog);
INSERT INTO t1 VALUES (@@session.insert_id);
INSERT INTO t2 SELECT UUID();
INSERT INTO t2 VALUES (@@session.sql_mode);
INSERT INTO t2 VALUES (@@global.init_slave);
RETURN 0;
END|
SHOW VARIABLES LIKE "SQL_LOG_BIN";
Variable_name Value
sql_log_bin OFF
SELECT func7();
func7()
0
---- Insert from trigger ----
CREATE TRIGGER trig
BEFORE INSERT ON trigger_table
FOR EACH ROW
BEGIN
INSERT INTO t1 VALUES (@@global.sync_binlog);
INSERT INTO t1 VALUES (@@session.insert_id);
INSERT INTO t1 VALUES (@@global.auto_increment_increment);
INSERT INTO t2 SELECT UUID();
INSERT INTO t2 VALUES (@@session.sql_mode);
INSERT INTO t2 VALUES (@@global.init_slave);
INSERT INTO t2 VALUES (@@hostname);
END|
INSERT INTO trigger_table VALUES ('bye.');
DROP FUNCTION fun_check_log_bin;
DROP FUNCTION func6;
DROP FUNCTION func7;
DROP TRIGGER trig;
DROP TABLE t1, t2, t3, trigger_table;
set @@SESSION.SQL_LOG_BIN = @save_log_bin;
"End of tests"