From c755a7a1c48b236c57f996fbc3c07ccbc952424c Mon Sep 17 00:00:00 2001
From: unknown <bar@mysql.com/bar.intranet.mysql.r18.ru>
Date: Wed, 1 Nov 2006 12:30:01 +0400
Subject: Bug#22877 replication character sets get out of sync using
 replicate-wild-ignore-table Problem: changes in character set variables
 before an action on an replication-ignored table makes slave to forget new
 variable values. Fix: initialize one_shot variables only when 4.1 -> 5.x
 replication is running.

mysql-test/r/rpl_ignore_table.result:
  Adding test case
mysql-test/t/rpl_ignore_table-slave.opt:
  Don't replicate tables with names starting with "tmptbl"
mysql-test/t/rpl_ignore_table.test:
  Adding test case
sql/sql_parse.cc:
  Reset one_shot variables only if we do 4.1->5.x replication.
  In other cases we cannot do that: resetting thd->variables out of sync with
  st_relay_log_info::cached_charset, which makes
  st_relay_log_info::cached_charset_compare() not to notice
  character set related variables changes afterwards.
---
 BitKeeper/etc/collapsed                 |  1 +
 mysql-test/r/rpl_ignore_table.result    | 16 ++++++++++++++++
 mysql-test/t/rpl_ignore_table-slave.opt |  2 +-
 mysql-test/t/rpl_ignore_table.test      | 23 +++++++++++++++++++++++
 sql/sql_parse.cc                        | 18 +++++++++++++++++-
 5 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/BitKeeper/etc/collapsed b/BitKeeper/etc/collapsed
index fd33e4fc902..e9b9c6d81e0 100644
--- a/BitKeeper/etc/collapsed
+++ b/BitKeeper/etc/collapsed
@@ -3,3 +3,4 @@
 44edb86b1iE5knJ97MbliK_3lCiAXA
 44f33f3aj5KW5qweQeekY1LU0E9ZCg
 4513d8e4Af4dQWuk13sArwofRgFDQw
+4538a7b0EbDHHkWPbIwxO6ZIDdg6Dg
diff --git a/mysql-test/r/rpl_ignore_table.result b/mysql-test/r/rpl_ignore_table.result
index 356a9dcb2f8..136cf5cc5eb 100644
--- a/mysql-test/r/rpl_ignore_table.result
+++ b/mysql-test/r/rpl_ignore_table.result
@@ -14,3 +14,19 @@ SELECT * FROM t4;
 a
 DROP TABLE t1;
 DROP TABLE t4;
+DROP TABLE IF EXISTS t5;
+CREATE TABLE t5 (
+word varchar(50) collate utf8_unicode_ci NOT NULL default ''
+) DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+SET @@session.character_set_client=33,@@session.collation_connection=192;
+CREATE TEMPORARY TABLE tmptbl504451f4258$1 (id INT NOT NULL) ENGINE=MEMORY;
+INSERT INTO t5 (word)  VALUES ('TEST’');
+SELECT HEX(word) FROM t5;
+HEX(word)
+54455354E28099
+SELECT HEX(word) FROM t5;
+HEX(word)
+54455354E28099
+SELECT * FROM tmptbl504451f4258$1;
+ERROR 42S02: Table 'test.tmptbl504451f4258$1' doesn't exist
+DROP TABLE t5;
diff --git a/mysql-test/t/rpl_ignore_table-slave.opt b/mysql-test/t/rpl_ignore_table-slave.opt
index cb49119bfcb..3aabbb2e0f5 100644
--- a/mysql-test/t/rpl_ignore_table-slave.opt
+++ b/mysql-test/t/rpl_ignore_table-slave.opt
@@ -1 +1 @@
---replicate-ignore-table=test.t1 --replicate-ignore-table=test.t2 --replicate-ignore-table=test.t3
+--replicate-ignore-table=test.t1 --replicate-ignore-table=test.t2 --replicate-ignore-table=test.t3 --replicate-wild-ignore-table=%.tmptbl%
diff --git a/mysql-test/t/rpl_ignore_table.test b/mysql-test/t/rpl_ignore_table.test
index bc651779208..b875075f71c 100644
--- a/mysql-test/t/rpl_ignore_table.test
+++ b/mysql-test/t/rpl_ignore_table.test
@@ -26,3 +26,26 @@ SELECT * FROM t4;
 connection master;
 DROP TABLE t1;
 DROP TABLE t4;
+
+
+#
+# bug#22877 replication character sets get out of sync
+# using replicate-wild-ignore-table
+#
+--disable_warnings
+DROP TABLE IF EXISTS t5;
+--enable_warnings
+CREATE TABLE t5 (
+ word varchar(50) collate utf8_unicode_ci NOT NULL default ''
+) DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+SET @@session.character_set_client=33,@@session.collation_connection=192;
+CREATE TEMPORARY TABLE tmptbl504451f4258$1 (id INT NOT NULL) ENGINE=MEMORY;
+INSERT INTO t5 (word)  VALUES ('TEST’');
+SELECT HEX(word) FROM t5;
+sync_slave_with_master;
+connection slave;
+SELECT HEX(word) FROM t5;
+--error 1146
+SELECT * FROM tmptbl504451f4258$1;
+connection master;
+DROP TABLE t5;
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index 18d048df393..ede21011bcd 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -2480,7 +2480,23 @@ mysql_execute_command(THD *thd)
     {
       /* we warn the slave SQL thread */
       my_message(ER_SLAVE_IGNORED_TABLE, ER(ER_SLAVE_IGNORED_TABLE), MYF(0));
-      reset_one_shot_variables(thd);
+      if (thd->one_shot_set)
+      {
+        /*
+          It's ok to check thd->one_shot_set here:
+
+          The charsets in a MySQL 5.0 slave can change by both a binlogged
+          SET ONE_SHOT statement and the event-internal charset setting, 
+          and these two ways to change charsets do not seems to work
+          together.
+
+          At least there seems to be problems in the rli cache for
+          charsets if we are using ONE_SHOT.  Note that this is normally no
+          problem because either the >= 5.0 slave reads a 4.1 binlog (with
+          ONE_SHOT) *or* or 5.0 binlog (without ONE_SHOT) but never both."
+        */
+        reset_one_shot_variables(thd);
+      }
       DBUG_RETURN(0);
     }
   }
-- 
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