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The following statements support the CURRENT_USER() where a user is needed.

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DROP USER 
RENAME USER CURRENT_USER() ...
GRANT ... TO CURRENT_USER()
REVOKE ... FROM CURRENT_USER()
ALTER DEFINER = CURRENT_USER() EVENTbut, When these statements are binlogged, CURRENT_USER() just is binlogged
as 'CURRENT_USER()', it is not expanded to the real user name. When slave 
executes the log event, 'CURRENT_USER()' is expand to the user of slave 
SQL thread, but SQL thread's user name always NULL. This breaks the replication.

After this patch, session's user will be written into query log events 
if these statements call CURREN_USER() or 'ALTER EVENT' does not assign a definer.
This commit is contained in:
2010-06-27 12:42:06 +08:00
parent 9fa66b6440
commit 899a1d694f
12 changed files with 602 additions and 21 deletions
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18
mysql-test/include/diff_tables.inc
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@ -64,17 +64,13 @@ let $_diff_table=$diff_table_2;
let $_diff_i=2;
while ($_diff_i) {
# Parse out any leading "master:" or "slave:" from the table
# specification and connect the appropriate server.
let $_diff_conn_master=`SELECT SUBSTR('$_diff_table', 1, 7) = 'master:'`;
if ($_diff_conn_master) {
let $_diff_table=`SELECT SUBSTR('$_diff_table', 8)`;
connection master;
}
let $_diff_conn_slave=`SELECT SUBSTR('$_diff_table', 1, 6) = 'slave:'`;
if ($_diff_conn_slave) {
let $_diff_table=`SELECT SUBSTR('$_diff_table', 7)`;
connection slave;
# Parse out any leading "master:" or "slave:" from the table specification
# and connect the appropriate server.
let $_pos= `SELECT LOCATE(':', '$_diff_table')`;
let $_diff_conn=`SELECT SUBSTR('$_diff_table', 1, $_pos-1)`;
if (`SELECT "XX$_diff_conn" <> "XX"`) {
let $_diff_table=`SELECT SUBSTR('$_diff_table', $_pos+1)`;
connection $_diff_conn;
}
# Sanity-check the input.