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b9f6f9bc64
- detect the need for row-based binlogging not at execution stage but earlier at parsing stage; needed for example for CREATE TABLE SELECT UUID().
- more tests of this mixed mode.
mysql-test/r/rpl_switch_stm_row_mixed.result:
result update
mysql-test/t/rpl_switch_stm_row_mixed.test:
testing more scenarios for the mixed replication mode.
Added support for manual testing of UDFs vs the mixed mode (behind a variable in the test).
Changing old file names to better ones.
sql/item_create.cc:
at parse time, when we see a UUID(), put up a flag in LEX to say this binlogs properly only with row-based binlogging.
sql/item_func.cc:
it's not perfect to put up the flag at this execution stage, better do it at parse stage.
sql/item_strfunc.cc:
it's not perfect to put up the flag at this execution stage, better do it at parse stage
sql/set_var.cc:
this assertion is wrong, this piece of code can happen in RBR mode too.
sql/sql_lex.cc:
when we reinitialize the LEX members before every query, we have to reinitialize the new flag
sql/sql_lex.h:
A new flag, set at parsing stage, which tells if some items seen during parsing stage require row-based replication to binlog/replicate correctly
when this statement is later executed.
It has to be in LEX and not directly in THD, for this to work in prepared statements.
sql/sql_parse.cc:
Parsing stage happened at some time in the past and set up the flag in LEX, now that we execute the statement we actually turn on row-based binlogging
if the thread's binlog format is "mixed". We then turn it off when leaving mysql_execute_command().
Some cleanup code was not executed if leaving mysql_execute_command() at the "error" label, fixing this. A better fix than the "goto end" would be
to modify each "goto error" to "res=1; goto end" but it required changing many lines which I don't want to do now ("make smallest possible patch").
sql/sql_yacc.yy:
When at parsing stage we see a UDF we put up a flag to say that row-based binlogging is preferred.
217 lines
6.9 KiB
Plaintext
217 lines
6.9 KiB
Plaintext
-- source include/have_binlog_format_row.inc
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-- source include/master-slave.inc
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connection master;
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--disable_warnings
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drop database if exists mysqltest1;
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create database mysqltest1;
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--enable_warnings
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use mysqltest1;
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show global variables like "binlog_format%";
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show session variables like "binlog_format%";
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select @@global.binlog_format, @@session.binlog_format;
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CREATE TABLE t1 (a varchar(100));
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prepare stmt1 from 'insert into t1 select concat(UUID(),?)';
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set @string="emergency";
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insert into t1 values("work");
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execute stmt1 using @string;
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deallocate prepare stmt1;
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prepare stmt1 from 'insert into t1 select ?';
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insert into t1 values(concat(UUID(),"work"));
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execute stmt1 using @string;
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deallocate prepare stmt1;
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insert into t1 values(concat("for",UUID()));
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insert into t1 select "yesterday";
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# verify that temp tables prevent a switch to SBR
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create temporary table tmp(a char(3));
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insert into tmp values("see");
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--error ER_TEMP_TABLE_PREVENTS_SWITCH_OUT_OF_RBR
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set binlog_format=statement;
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insert into t1 select * from tmp;
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drop temporary table tmp;
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# Now we go to SBR
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set binlog_format=statement;
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show global variables like "binlog_format%";
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show session variables like "binlog_format%";
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select @@global.binlog_format, @@session.binlog_format;
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set global binlog_format=statement;
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show global variables like "binlog_format%";
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show session variables like "binlog_format%";
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select @@global.binlog_format, @@session.binlog_format;
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prepare stmt1 from 'insert into t1 select ?';
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set @string="emergency";
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insert into t1 values("work");
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execute stmt1 using @string;
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deallocate prepare stmt1;
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prepare stmt1 from 'insert into t1 select ?';
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insert into t1 values("work");
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execute stmt1 using @string;
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deallocate prepare stmt1;
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insert into t1 values("for");
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insert into t1 select "yesterday";
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# test SET DEFAULT (=statement at this point of test)
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set binlog_format=default;
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select @@global.binlog_format, @@session.binlog_format;
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# due to cluster it's hard to set back to default
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--error ER_NO_DEFAULT
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set global binlog_format=default;
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select @@global.binlog_format, @@session.binlog_format;
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prepare stmt1 from 'insert into t1 select ?';
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set @string="emergency";
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insert into t1 values("work");
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execute stmt1 using @string;
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deallocate prepare stmt1;
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prepare stmt1 from 'insert into t1 select ?';
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insert into t1 values("work");
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execute stmt1 using @string;
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deallocate prepare stmt1;
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insert into t1 values("for");
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insert into t1 select "yesterday";
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# and now the mixed mode
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set binlog_format=mixed;
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select @@global.binlog_format, @@session.binlog_format;
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set global binlog_format=mixed;
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select @@global.binlog_format, @@session.binlog_format;
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prepare stmt1 from 'insert into t1 select concat(UUID(),?)';
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set @string="emergency";
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insert into t1 values("work");
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execute stmt1 using @string;
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deallocate prepare stmt1;
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prepare stmt1 from 'insert into t1 select ?';
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insert into t1 values(concat(UUID(),"work"));
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execute stmt1 using @string;
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deallocate prepare stmt1;
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insert into t1 values(concat("for",UUID()));
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insert into t1 select "yesterday";
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prepare stmt1 from 'insert into t1 select ?';
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insert into t1 values(concat(UUID(),"work"));
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execute stmt1 using @string;
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deallocate prepare stmt1;
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insert into t1 values(concat("for",UUID()));
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insert into t1 select "yesterday";
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# Test of CREATE TABLE SELECT
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create table t2 select UUID();
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create table t3 select 1 union select UUID();
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create table t4 select * from t1 where 3 in (select 1 union select 2 union select UUID() union select 3);
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create table t5 select * from t1 where 3 in (select 1 union select 2 union select curdate() union select 3);
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# what if UUID() is first:
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insert into t5 select UUID() from t1 where 3 in (select 1 union select 2 union select 3 union select * from t4);
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# inside a stored procedure (inside a function or trigger won't
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# work)
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delimiter |;
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create procedure foo()
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begin
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insert into t1 values("work");
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insert into t1 values(concat("for",UUID()));
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insert into t1 select "yesterday";
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end|
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create procedure foo2()
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begin
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insert into t1 values(concat("emergency",UUID()));
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insert into t1 values("work");
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insert into t1 values(concat("for",UUID()));
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set session binlog_format=row; # accepted for stored procs
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insert into t1 values("more work");
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set session binlog_format=mixed;
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end|
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create function foo3() returns bigint unsigned
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begin
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set session binlog_format=row; # rejected for stored funcs
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insert into t1 values("alarm");
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return 100;
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end|
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delimiter ;|
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call foo();
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call foo2();
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# test that can't SET in a stored function
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--error ER_STORED_FUNCTION_PREVENTS_SWITCH_BINLOG_FORMAT
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select foo3();
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select * from t1 where a="alarm";
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# If you want to do manual testing of the mixed mode regarding UDFs (not
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# testable automatically as quite platform- and compiler-dependent),
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# you just need to set the variable below to 1, and to
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# "make udf_example.so" in sql/, and to copy sql/udf_example.so to
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# MYSQL_TEST_DIR/lib/mysql.
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let $you_want_to_test_UDF=0;
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if ($you_want_to_test_UDF)
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{
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CREATE FUNCTION metaphon RETURNS STRING SONAME 'udf_example.so';
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prepare stmt1 from 'insert into t1 select metaphon(?)';
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set @string="emergency";
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insert into t1 values("work");
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execute stmt1 using @string;
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deallocate prepare stmt1;
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prepare stmt1 from 'insert into t1 select ?';
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insert into t1 values(metaphon("work"));
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execute stmt1 using @string;
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deallocate prepare stmt1;
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insert into t1 values(metaphon("for"));
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insert into t1 select "yesterday";
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create table t6 select metaphon("for");
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create table t7 select 1 union select metaphon("for");
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create table t8 select * from t1 where 3 in (select 1 union select 2 union select metaphon("for") union select 3);
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create table t9 select * from t1 where 3 in (select 1 union select 2 union select curdate() union select 3);
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}
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# and now compare:
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# first check that data on master is sensible
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select count(*) from t1;
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select count(*) from t2;
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select count(*) from t3;
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select count(*) from t4;
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select count(*) from t5;
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if ($you_want_to_test_UDF)
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{
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select count(*) from t6;
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select count(*) from t7;
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select count(*) from t8;
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select count(*) from t9;
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}
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--replace_column 2 # 5 #
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--replace_regex /table_id: [0-9]+/table_id: #/
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show binlog events from 102;
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sync_slave_with_master;
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# as we're using UUID we don't SELECT but use "diff" like in rpl_row_UUID
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--exec $MYSQL_DUMP --compact --order-by-primary --skip-extended-insert --no-create-info mysqltest1 > $MYSQLTEST_VARDIR/tmp/rpl_switch_stm_row_mixed_master.sql
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--exec $MYSQL_DUMP_SLAVE --compact --order-by-primary --skip-extended-insert --no-create-info mysqltest1 > $MYSQLTEST_VARDIR/tmp/rpl_switch_stm_row_mixed_slave.sql
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connection master;
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drop database mysqltest1;
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sync_slave_with_master;
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# Let's compare. Note: If they match test will pass, if they do not match
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# the test will show that the diff statement failed and not reject file
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# will be created. You will need to go to the mysql-test dir and diff
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# the files your self to see what is not matching
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--exec diff $MYSQLTEST_VARDIR/tmp/rpl_switch_stm_row_mixed_master.sql $MYSQLTEST_VARDIR/tmp/rpl_switch_stm_row_mixed_slave.sql;
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