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Make mysqlbinlog omit redundant use around BEGIN/SAVEPOINT/COMMIT/ROLLBACK in 5.0 binlogs

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This is a merge of percona patch mysqlbinlog_fix.patch.

Apparently, MySQL 5.0 does not flag BEGIN/SAVEPOINT/COMMIT/ROLLBACK statements
in its binlogs with LOG_EVENT_SUPPRESS_USE_F like 5.1+ does. This causes
unnecessary `use` statements around such statements when the binlog is dumped
by mysqlbinlog.

Fix by always suppressing the output of `use` for these statements.
This commit is contained in:
unknown
2011-01-13 14:15:07 +01:00
parent bacb41a6b7
commit a5b05b45f2
2 changed files with 15 additions and 8 deletions
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15
client/mysqlbinlog.cc
View File

@ -842,8 +842,19 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
case QUERY_EVENT:
{
Query_log_event *qe= (Query_log_event*)ev;
if (!qe->is_trans_keyword() && shall_skip_database(qe->db))
goto end;
if (!qe->is_trans_keyword())
{
if (shall_skip_database(qe->db))
goto end;
}
else
{
/*
In case the event for one of these statements is obtained
from binary log 5.0, make it compatible with 5.1
*/
qe->flags|= LOG_EVENT_SUPPRESS_USE_F;
}
print_use_stmt(print_event_info, qe->db, qe->db_len);
if (opt_base64_output_mode == BASE64_OUTPUT_ALWAYS)
{

8
mysql-test/r/mysqlbinlog.result
View File

@ -222,7 +222,6 @@ ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
ROLLBACK/*!*/;
use test/*!*/;
SET TIMESTAMP=1108844556/*!*/;
SET @@session.pseudo_thread_id=999999999/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
@ -230,6 +229,7 @@ SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
use test/*!*/;
SET TIMESTAMP=1108844555/*!*/;
insert t1 values (1)
/*!*/;
@ -241,7 +241,6 @@ Warning: The option '--position' is deprecated and will be removed in a future r
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
use test/*!*/;
SET TIMESTAMP=1108844556/*!*/;
SET @@session.pseudo_thread_id=999999999/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
@ -249,6 +248,7 @@ SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
use test/*!*/;
SET TIMESTAMP=1108844555/*!*/;
insert t1 values (1)
/*!*/;
@ -584,7 +584,6 @@ SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
use test/*!*/;
SET TIMESTAMP=1266652094/*!*/;
SavePoint mixed_cases
/*!*/;
@ -595,11 +594,9 @@ INSERT INTO db1.t2 VALUES("in savepoint mixed_cases")
SET TIMESTAMP=1266652094/*!*/;
INSERT INTO db1.t1 VALUES(40)
/*!*/;
use test/*!*/;
SET TIMESTAMP=1266652094/*!*/;
ROLLBACK TO mixed_cases
/*!*/;
use db1/*!*/;
SET TIMESTAMP=1266652094/*!*/;
INSERT INTO db1.t2 VALUES("after rollback to")
/*!*/;
@ -627,7 +624,6 @@ SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
use test/*!*/;
SET TIMESTAMP=1266652094/*!*/;
SavePoint mixed_cases
/*!*/;