Commit e7cf871d authored by Andrei's avatar Andrei

MDEV-24617 OPTIMIZE on a sequence causes unexpected ER_BINLOG_UNSAFE_STATEMENT

The warning out of OPTIMIZE
  Statement is unsafe because it uses a system function
was indeed counterfactual and was resulted by checking an
insufficiently strict property of lex' sql_command_flags.

Fixed with deploying an additional checking of weather
the current sql command that modifes a share->non_determinstic_insert
table is capable of generating ROW format events.
The extra check rules out the unsafety to OPTIMIZE et al, while the
existing check continues to do so to CREATE TABLE (which is
perculiarly tagged as ROW-event generative sql command).

As a side effect sql_sequence.binlog test gets corrected and
binlog_stm_unsafe_warning.test is reinforced to add up
an unsafe CREATE..SELECT test.
parent 8ea08505
......@@ -104,6 +104,17 @@ Note 1592 Unsafe statement written to the binary log using statement format sinc
SHOW WARNINGS;
Level Code Message
Note 1592 Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. Statement is unsafe because it invokes a trigger or a stored function that inserts into an AUTO_INCREMENT column. Inserted values cannot be logged correctly
CREATE TABLE t3 (a INT(11) DEFAULT NULL);
INSERT INTO t3 VALUES (1);
CREATE TABLE t4 (a INT(11) DEFAULT NULL, b BIGINT(20) DEFAULT uuid_short()) SELECT * FROM t3;
Warnings:
Note 1592 Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. Statement is unsafe because it uses a system function that may return a different value on the slave
SHOW WARNINGS;
Level Code Message
Note 1592 Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. Statement is unsafe because it uses a system function that may return a different value on the slave
CREATE OR REPLACE TABLE t4 (a INT(11) DEFAULT NULL) SELECT * FROM t3;
SHOW WARNINGS;
Level Code Message
DROP FUNCTION sf_bug50192;
DROP TRIGGER tr_bug50192;
DROP TABLE t1, t2;
DROP TABLE t1, t2, t3, t4;
......@@ -189,8 +189,20 @@ SHOW WARNINGS;
SELECT sf_bug50192();
SHOW WARNINGS;
# The test proves MDEV-24617 fixes leave in force
# unsafe warnings in non-deterministic CREATE..SELECT cases.
# Below an inserted default value to `b` of the target table is replication
# unsafe. A warning must be out.
CREATE TABLE t3 (a INT(11) DEFAULT NULL);
INSERT INTO t3 VALUES (1);
CREATE TABLE t4 (a INT(11) DEFAULT NULL, b BIGINT(20) DEFAULT uuid_short()) SELECT * FROM t3;
SHOW WARNINGS;
# no warning out of a deterministic "rhs" of SELECT
CREATE OR REPLACE TABLE t4 (a INT(11) DEFAULT NULL) SELECT * FROM t3;
SHOW WARNINGS;
# cleanup
DROP FUNCTION sf_bug50192;
DROP TRIGGER tr_bug50192;
DROP TABLE t1, t2;
DROP TABLE t1, t2, t3, t4;
......@@ -12,6 +12,20 @@ select next value for s1, minimum_value from s1 where maximum_value> 4;
next value for s1 minimum_value
4 1
alter sequence s1 maxvalue 1000;
optimize table s1;
Table Op Msg_type Msg_text
test.s1 optimize note The storage engine for the table doesn't support optimize
analyze table s1;
Table Op Msg_type Msg_text
test.s1 analyze note The storage engine for the table doesn't support analyze
repair table s1;
Table Op Msg_type Msg_text
test.s1 repair status OK
check table s1;
Table Op Msg_type Msg_text
test.s1 check note The storage engine for the table doesn't support check
rename table s1 to tmp_s;
rename table tmp_s to s1;
drop sequence s1;
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
......@@ -30,4 +44,14 @@ master-bin.000001 # Query # # COMMIT
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; alter sequence s1 maxvalue 1000
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; optimize table s1
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; analyze table s1
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; repair table s1
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; rename table s1 to tmp_s
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; rename table tmp_s to s1
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; DROP SEQUENCE `s1` /* generated by server */
--source include/have_udf.inc
--source include/have_log_bin.inc
--source include/have_sequence.inc
--source include/have_binlog_format_mixed_or_row.inc
--source include/binlog_start_pos.inc
#
......@@ -21,6 +21,17 @@ select next value for s1, minimum_value from s1 where maximum_value> 4;
#
alter sequence s1 maxvalue 1000;
# MDEV-24617 OPTIMIZE on a sequence causes unexpected
# ER_BINLOG_UNSAFE_STATEMENT The test below verifies no unsafe
# warnings anymore for any relavant commands that like OPTIMIZE can
# not produce ROW format events therefore the unsafe warning either.
optimize table s1;
analyze table s1;
repair table s1;
check table s1;
rename table s1 to tmp_s;
rename table tmp_s to s1;
drop sequence s1;
--let $binlog_file = LAST
......
......@@ -6210,7 +6210,8 @@ int THD::decide_logging_format(TABLE_LIST *tables)
table->file->ht)
multi_write_engine= TRUE;
if (share->non_determinstic_insert &&
!(sql_command_flags[lex->sql_command] & CF_SCHEMA_CHANGE))
(sql_command_flags[lex->sql_command] & CF_CAN_GENERATE_ROW_EVENTS
&& !(sql_command_flags[lex->sql_command] & CF_SCHEMA_CHANGE)))
has_write_tables_with_unsafe_statements= true;
trans= table->file->has_transactions();
......
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