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8d240586b5
The auto-inc unsafe warning makes sense even though it's just
one auto-inc table could be involved via a trigger or a stored
function.
However its content was not updated by bug@45677 fixes continuing to mention
two tables whereas the fixes refined semantics of replication of auto_increment
in stored routine.
Fixed with updating the error message, renaming the error and an internal unsafe-condition
constants.
A documentation notice
======================
Inserting into an autoincrement column in a stored function or a trigger
is unsafe for replication.
Even with just one autoincrement column, if the routine is invoked more than
once slave is not guaranteed to execute the statement graph same way as
the master.
And since it's impossible to estimate how many times a routine can be invoked at
the query pre-execution phase (see lock_tables), the statement is marked
pessimistically unsafe.
mysql-test/suite/binlog/r/binlog_stm_unsafe_warning.result:
results updated to include the expected unsafe warning.
mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test:
regression test for bug#50192 to diplaying the unsafe warning comes out to the user warning stack.
sql/share/errmsg-utf8.txt:
Updating the auto-inc unsafe message to correspond to bug@45677 fixes' new sematics.
sql/share/errmsg.txt:
Updating the auto-inc unsafe message to correspond to bug@45677 fixes' new sematics.
sql/sql_base.cc:
changing a symbolic name to correspond to updated by bug@45677 fixes new sematics.
sql/sql_lex.cc:
changing a symbolic name to correspond to updated by bug@45677 fixes new sematics.
sql/sql_lex.h:
changing a symbolic name to correspond to updated by bug@45677 fixes new sematics
and description comments.
152 lines
4.3 KiB
Plaintext
152 lines
4.3 KiB
Plaintext
# BUG#42851: Spurious "Statement is not safe to log in statement
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# format." warnings
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#
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# WHY
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# ===
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#
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# This test aims at checking that the fix that removes spurious
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# entries in the error log when the statement is filtered out from
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# binlog, is working.
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#
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# HOW
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# ===
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#
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# The test case is split into three assertions when issuing statements
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# containing LIMIT and ORDER BY:
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#
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# i) issue statements in database that is not filtered => check
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# that warnings ARE shown;
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#
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# ii) issue statements in database that is not filtered, but with
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# binlog disabled => check that warnings ARE NOT shown;
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#
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# iii) issue statements in database that is filtered => check that
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# warnings ARE NOT shown.
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-- source include/have_log_bin.inc
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-- source include/have_binlog_format_statement.inc
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call mtr.add_suppression("Unsafe statement binlogged in statement format since BINLOG_FORMAT = STATEMENT. Reason for unsafeness: Statement uses a LIMIT clause. This is unsafe because the set of rows included cannot be predicted. .*");
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call mtr.add_suppression("Unsafe statement binlogged in statement format since BINLOG_FORMAT = STATEMENT. Reason for unsafeness: Statement uses a system function whose value may differ on slave. .*");
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call mtr.add_suppression("Unsafe statement binlogged in statement format since BINLOG_FORMAT = STATEMENT. Reason for unsafeness: Statement invokes a trigger or a stored function that inserts into AUTO_INCREMENT column");
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-- echo ### NOT filtered database => assertion: warnings ARE shown
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-- disable_warnings
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DROP TABLE IF EXISTS t1;
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-- enable_warnings
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CREATE TABLE t1 (a int, b int, primary key (a));
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INSERT INTO t1 VALUES (1,2), (2,3);
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UPDATE t1 SET b='4' WHERE a=1 LIMIT 1;
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UPDATE t1 SET b='5' WHERE a=2 ORDER BY a LIMIT 1;
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DROP TABLE t1;
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-- echo ### NOT filtered database => assertion: binlog disabled and warnings ARE NOT shown
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SET SQL_LOG_BIN= 0;
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-- disable_warnings
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DROP TABLE IF EXISTS t1;
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-- enable_warnings
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CREATE TABLE t1 (a int, b int, primary key (a));
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INSERT INTO t1 VALUES (1,2), (2,3);
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UPDATE t1 SET b='4' WHERE a=1 LIMIT 1;
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UPDATE t1 SET b='5' WHERE a=2 ORDER BY a LIMIT 1;
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DROP TABLE t1;
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SET SQL_LOG_BIN= 1;
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-- echo ### FILTERED database => assertion: warnings ARE NOT shown
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let $old_db= `SELECT DATABASE()`;
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CREATE DATABASE b42851;
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USE b42851;
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-- disable_warnings
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DROP TABLE IF EXISTS t1;
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-- enable_warnings
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CREATE TABLE t1 (a int, b int, primary key (a));
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INSERT INTO t1 VALUES (1,2), (2,3);
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UPDATE t1 SET b='4' WHERE a=1 LIMIT 1;
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UPDATE t1 SET b='5' WHERE a=2 ORDER BY a LIMIT 1;
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DROP TABLE t1;
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# clean up
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DROP DATABASE b42851;
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eval USE $old_db;
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--echo #
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--echo # Bug#46265: Can not disable warning about unsafe statements for binary logging
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--echo #
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SET @old_log_warnings = @@log_warnings;
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--disable_warnings
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DROP TABLE IF EXISTS t1;
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--enable_warnings
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CREATE TABLE t1 (a VARCHAR(36), b VARCHAR(10));
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SET GLOBAL LOG_WARNINGS = 0;
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INSERT INTO t1 VALUES(UUID(), 'Bug#46265');
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SET GLOBAL LOG_WARNINGS = 1;
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INSERT INTO t1 VALUES(UUID(), 'Bug#46265');
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DROP TABLE t1;
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SET GLOBAL log_warnings = @old_log_warnings;
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let $log_error_= `SELECT @@GLOBAL.log_error`;
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if(!`select LENGTH('$log_error_')`)
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{
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# MySQL Server on windows is started with --console and thus
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# does not know the location of its .err log, use default location
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let $log_error_ = $MYSQLTEST_VARDIR/log/mysqld.1.err;
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}
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# Assign env variable LOG_ERROR
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let LOG_ERROR=$log_error_;
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--echo # Count the number of times the "Unsafe" message was printed
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--echo # to the error log.
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perl;
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use strict;
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my $log_error= $ENV{'LOG_ERROR'} or die "LOG_ERROR not set";
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open(FILE, "$log_error") or die("Unable to open $log_error: $!\n");
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my $count = () = grep(/Bug#46265/g,<FILE>);
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print "Occurrences: $count\n";
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close(FILE);
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EOF
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# bug#50192: diplaying the unsafe warning comes out to the user warning stack
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-- disable_warnings
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DROP TABLE IF EXISTS t1, t2;
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-- enable_warnings
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CREATE TABLE t1 (a int);
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CREATE TABLE t2 (a int auto_increment primary key, b int);
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CREATE TRIGGER tr_bug50192 AFTER INSERT ON t1 FOR EACH ROW INSERT INTO t2 (b) VALUES (1);
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DELIMITER |;
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CREATE FUNCTION sf_bug50192() RETURNS INTEGER
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BEGIN
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INSERT INTO t2(b) VALUES(2);
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RETURN 1;
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END |
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DELIMITER ;|
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INSERT INTO t1 VALUES (0);
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SHOW WARNINGS;
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SELECT sf_bug50192();
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SHOW WARNINGS;
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# cleanup
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DROP FUNCTION sf_bug50192;
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DROP TRIGGER tr_bug50192;
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DROP TABLE t1, t2;
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