MDEV#5534: mysql_tzinfo_to_sql generates wrong query

mysql_tzinfo_to_sql tries to set wsrep_replicate_myisam
as SESSION variable, while its a GLOBAL-only system variable,
and thus the resulting sql would fail to load.

Fixed by changing the scope to GLOBAL in the SET command.

Also added following include files to facilitate testing :
* include/have_wsrep.inc
* include/not_wsrep.inc
* include/have_wsrep_enabled.inc

mysql-test/include/have_wsrep.inc

--- require r/have_wsrep.require
-disable_query_log;
-show variables like 'wsrep_on';
-enable_query_log;
+# To be used in a test which requires server to be compiled with wsrep support
+# (-DWITH_WSREP=ON) and wsrep plugin is ACTIVE.
+
+if (`SELECT COUNT(*)=0 FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME = 'wsrep' AND PLUGIN_STATUS='ACTIVE'`)
+{
+  --skip Test required wsrep plugin.
+}
+

mysql-test/include/have_wsrep_enabled.inc

+# To be used in a test which requires wsrep plugin to be ACTIVE and enabled
+# (i.e. wsrep_on=ON). It includes have_wsrep.inc.
+
+--source include/have_wsrep.inc
+
+--require r/have_wsrep.require
+disable_query_log;
+SHOW VARIABLES LIKE 'wsrep_on';
+enable_query_log;

mysql-test/include/not_wsrep.inc

+# To be used in a test which should be skipped if server is compiled with wsrep
+# support (-DWITH_WSREP=ON) and wsrep plugin is ACTIVE.
+
+-- require r/not_wsrep.require
+disable_query_log;
+SELECT VERSION() LIKE '%wsrep%' AS 'HAVE_WSREP';
+enable_query_log;

mysql-test/r/mysql_tzinfo_to_sql_symlink.result

@@ -2,7 +2,6 @@
 # MDEV-5226 mysql_tzinfo_to_sql errors with tzdata 2013f and above
 #
 # Verbose run
-SET SESSION wsrep_replicate_myisam=ON;
 TRUNCATE TABLE time_zone;
 TRUNCATE TABLE time_zone_name;
 TRUNCATE TABLE time_zone_transition;
@@ -27,7 +26,6 @@ Warning: Skipping directory 'MYSQLTEST_VARDIR/zoneinfo/posix/posix': to avoid in
 ALTER TABLE time_zone_transition ORDER BY Time_zone_id, Transition_time;
 ALTER TABLE time_zone_transition_type ORDER BY Time_zone_id, Transition_type_id;
 # Silent run
-SET SESSION wsrep_replicate_myisam=ON;
 TRUNCATE TABLE time_zone;
 TRUNCATE TABLE time_zone_name;
 TRUNCATE TABLE time_zone_transition;
@@ -51,7 +49,6 @@ ALTER TABLE time_zone_transition_type ORDER BY Time_zone_id, Transition_type_id;
 #
 # Testing with explicit timezonefile
 #
-SET SESSION wsrep_replicate_myisam=ON;
 INSERT INTO time_zone (Use_leap_seconds) VALUES ('N');
 SET @time_zone_id= LAST_INSERT_ID();
 INSERT INTO time_zone_name (Name, Time_zone_id) VALUES ('XXX', @time_zone_id);
@@ -61,6 +58,5 @@ INSERT INTO time_zone_transition_type (Time_zone_id, Transition_type_id, Offset,
 #
 # Testing --leap
 #
-SET SESSION wsrep_replicate_myisam=ON;
 TRUNCATE TABLE time_zone_leap_second;
 ALTER TABLE time_zone_leap_second ORDER BY Transition_time;

mysql-test/r/not_wsrep.require

+HAVE_WSREP
+0

mysql-test/suite/wsrep/r/binlog_format.result

+call mtr.add_suppression("WSREP: cannot get fake InnoDB transaction ID");
+call mtr.add_suppression("WSREP: Could not open saved state file for reading:.*");
 SHOW VARIABLES LIKE 'binlog_format';
 Variable_name	Value
 binlog_format	ROW

mysql-test/suite/wsrep/r/mysql_tzinfo_to_sql_symlink.result

+#
+# MDEV-5226 mysql_tzinfo_to_sql errors with tzdata 2013f and above
+#
+# Verbose run
+SET GLOBAL wsrep_replicate_myisam= ON;
+TRUNCATE TABLE time_zone;
+TRUNCATE TABLE time_zone_name;
+TRUNCATE TABLE time_zone_transition;
+TRUNCATE TABLE time_zone_transition_type;
+INSERT INTO time_zone (Use_leap_seconds) VALUES ('N');
+SET @time_zone_id= LAST_INSERT_ID();
+INSERT INTO time_zone_name (Name, Time_zone_id) VALUES ('GMT', @time_zone_id);
+INSERT INTO time_zone_transition_type (Time_zone_id, Transition_type_id, Offset, Is_DST, Abbreviation) VALUES
+ (@time_zone_id, 0, 0, 0, 'GMT')
+;
+Warning: Unable to load 'MYSQLTEST_VARDIR/zoneinfo/garbage' as time zone. Skipping it.
+Warning: Unable to load 'MYSQLTEST_VARDIR/zoneinfo/ignored.tab' as time zone. Skipping it.
+INSERT INTO time_zone (Use_leap_seconds) VALUES ('N');
+SET @time_zone_id= LAST_INSERT_ID();
+INSERT INTO time_zone_name (Name, Time_zone_id) VALUES ('posix/GMT', @time_zone_id);
+INSERT INTO time_zone_transition_type (Time_zone_id, Transition_type_id, Offset, Is_DST, Abbreviation) VALUES
+ (@time_zone_id, 0, 0, 0, 'GMT')
+;
+Warning: Unable to load 'MYSQLTEST_VARDIR/zoneinfo/posix/garbage' as time zone. Skipping it.
+Warning: Unable to load 'MYSQLTEST_VARDIR/zoneinfo/posix/ignored.tab' as time zone. Skipping it.
+Warning: Skipping directory 'MYSQLTEST_VARDIR/zoneinfo/posix/posix': to avoid infinite symlink recursion.
+ALTER TABLE time_zone_transition ORDER BY Time_zone_id, Transition_time;
+ALTER TABLE time_zone_transition_type ORDER BY Time_zone_id, Transition_type_id;
+SET GLOBAL wsrep_replicate_myisam= OFF;
+# Silent run
+SET GLOBAL wsrep_replicate_myisam= ON;
+TRUNCATE TABLE time_zone;
+TRUNCATE TABLE time_zone_name;
+TRUNCATE TABLE time_zone_transition;
+TRUNCATE TABLE time_zone_transition_type;
+INSERT INTO time_zone (Use_leap_seconds) VALUES ('N');
+SET @time_zone_id= LAST_INSERT_ID();
+INSERT INTO time_zone_name (Name, Time_zone_id) VALUES ('GMT', @time_zone_id);
+INSERT INTO time_zone_transition_type (Time_zone_id, Transition_type_id, Offset, Is_DST, Abbreviation) VALUES
+ (@time_zone_id, 0, 0, 0, 'GMT')
+;
+Warning: Unable to load 'MYSQLTEST_VARDIR/zoneinfo/garbage' as time zone. Skipping it.
+INSERT INTO time_zone (Use_leap_seconds) VALUES ('N');
+SET @time_zone_id= LAST_INSERT_ID();
+INSERT INTO time_zone_name (Name, Time_zone_id) VALUES ('posix/GMT', @time_zone_id);
+INSERT INTO time_zone_transition_type (Time_zone_id, Transition_type_id, Offset, Is_DST, Abbreviation) VALUES
+ (@time_zone_id, 0, 0, 0, 'GMT')
+;
+Warning: Unable to load 'MYSQLTEST_VARDIR/zoneinfo/posix/garbage' as time zone. Skipping it.
+ALTER TABLE time_zone_transition ORDER BY Time_zone_id, Transition_time;
+ALTER TABLE time_zone_transition_type ORDER BY Time_zone_id, Transition_type_id;
+SET GLOBAL wsrep_replicate_myisam= OFF;
+#
+# Testing with explicit timezonefile
+#
+SET GLOBAL wsrep_replicate_myisam= ON;
+INSERT INTO time_zone (Use_leap_seconds) VALUES ('N');
+SET @time_zone_id= LAST_INSERT_ID();
+INSERT INTO time_zone_name (Name, Time_zone_id) VALUES ('XXX', @time_zone_id);
+INSERT INTO time_zone_transition_type (Time_zone_id, Transition_type_id, Offset, Is_DST, Abbreviation) VALUES
+ (@time_zone_id, 0, 0, 0, 'GMT')
+;
+SET GLOBAL wsrep_replicate_myisam= OFF;
+#
+# Testing --leap
+#
+SET GLOBAL wsrep_replicate_myisam= ON;
+TRUNCATE TABLE time_zone_leap_second;
+ALTER TABLE time_zone_leap_second ORDER BY Transition_time;
+SET GLOBAL wsrep_replicate_myisam= OFF;

mysql-test/suite/wsrep/r/variables.result

+
+# MDEV#5534: mysql_tzinfo_to_sql generates wrong query
+#
+# Testing wsrep_replicate_myisam variable.
+SELECT @@session.wsrep_replicate_myisam;
+ERROR HY000: Variable 'wsrep_replicate_myisam' is a GLOBAL variable
+SELECT @@global.wsrep_replicate_myisam;
+@@global.wsrep_replicate_myisam
+0
+SET SESSION wsrep_replicate_myisam= ON;
+ERROR HY000: Variable 'wsrep_replicate_myisam' is a GLOBAL variable and should be set with SET GLOBAL
+SET GLOBAL wsrep_replicate_myisam= ON;
+SET GLOBAL wsrep_replicate_myisam= OFF;
+# End of test.

mysql-test/suite/wsrep/t/binlog_format.test

---source include/have_wsrep.inc
+--source include/have_wsrep_enabled.inc
 --source include/have_binlog_format_row.inc
 #
 # MDEV-4227: Galera server should stop crashing on setting binlog_format STATEMENT
 #
+call mtr.add_suppression("WSREP: cannot get fake InnoDB transaction ID");
+call mtr.add_suppression("WSREP: Could not open saved state file for reading:.*");
+
 SHOW VARIABLES LIKE 'binlog_format';
 -- error ER_WRONG_VALUE_FOR_VAR
 SET binlog_format=STATEMENT;

mysql-test/suite/wsrep/t/mysql_tzinfo_to_sql_symlink.test

+--source include/have_wsrep.inc
+--source include/have_symlink.inc
+--source include/not_windows.inc
+
+--echo #
+--echo # MDEV-5226 mysql_tzinfo_to_sql errors with tzdata 2013f and above
+--echo #
+
+--exec mkdir $MYSQLTEST_VARDIR/zoneinfo
+--exec ln -s $MYSQLTEST_VARDIR/zoneinfo $MYSQLTEST_VARDIR/zoneinfo/posix
+--copy_file std_data/zoneinfo/GMT $MYSQLTEST_VARDIR/zoneinfo/GMT
+--copy_file std_data/words.dat $MYSQLTEST_VARDIR/zoneinfo/garbage
+--copy_file std_data/words.dat $MYSQLTEST_VARDIR/zoneinfo/ignored.tab
+
+--echo # Verbose run
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+--exec $MYSQL_TZINFO_TO_SQL --verbose $MYSQLTEST_VARDIR/zoneinfo 2>&1
+
+--echo # Silent run
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+--exec $MYSQL_TZINFO_TO_SQL $MYSQLTEST_VARDIR/zoneinfo 2>&1
+
+--echo #
+--echo # Testing with explicit timezonefile
+--echo #
+
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+--exec $MYSQL_TZINFO_TO_SQL $MYSQLTEST_VARDIR/zoneinfo/GMT XXX 2>&1
+
+--echo #
+--echo # Testing --leap
+--echo #
+
+--exec $MYSQL_TZINFO_TO_SQL --leap $MYSQLTEST_VARDIR/zoneinfo/GMT 2>&1
+
+#
+# Cleanup
+#
+
+--exec rm -rf $MYSQLTEST_VARDIR/zoneinfo

mysql-test/suite/wsrep/t/variables.test

+--source include/have_wsrep.inc
+
+--echo
+--echo # MDEV#5534: mysql_tzinfo_to_sql generates wrong query
+--echo #
+--echo # Testing wsrep_replicate_myisam variable.
+
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SELECT @@session.wsrep_replicate_myisam;
+SELECT @@global.wsrep_replicate_myisam;
+
+--error ER_GLOBAL_VARIABLE
+SET SESSION wsrep_replicate_myisam= ON;
+SET GLOBAL wsrep_replicate_myisam= ON;
+
+# Reset it back.
+SET GLOBAL wsrep_replicate_myisam= OFF;
+
+--echo # End of test.

mysql-test/t/mysql_tzinfo_to_sql_symlink.test

 --source include/have_symlink.inc
 --source include/not_windows.inc
 
+# Note: The output of mysql_tzinfo_to_sql is different if server is compiled
+# with wsrep. Hence a copy of this test has been placed under wsrep suite with
+# the updated result. (lp:1161432)
+--source include/not_wsrep.inc
+
 --echo #
 --echo # MDEV-5226 mysql_tzinfo_to_sql errors with tzdata 2013f and above
 --echo #

sql/handler.cc

@@ -5407,7 +5407,7 @@ void ha_wsrep_fake_trx_id(THD *thd)
   } 
   else 
   {
-    WSREP_WARN("cannot get get fake InnoDB transaction ID");
+    WSREP_WARN("cannot get fake InnoDB transaction ID");
   }
 
   DBUG_VOID_RETURN;

sql/tztime.cc

@@ -2707,8 +2707,10 @@ main(int argc, char **argv)
     return 1;
   }
 
+#ifdef WITH_WSREP
   // Replicate MyISAM DDL for this session, cf. lp:1161432
-  printf("SET SESSION wsrep_replicate_myisam=ON;\n");
+  printf("SET GLOBAL wsrep_replicate_myisam= ON;\n");
+#endif /* WITH_WSREP */
 
   if (argc == 1 && !opt_leap)
   {
@@ -2757,6 +2759,11 @@ main(int argc, char **argv)
     free_root(&tz_storage, MYF(0));
   }
 
+#ifdef WITH_WSREP
+  // Reset wsrep_replicate_myisam. lp:1161432
+  printf("SET GLOBAL wsrep_replicate_myisam= OFF;\n");
+#endif /* WITH_WSREP */
+
   free_defaults(default_argv);
   my_end(0);
   return 0;