Bug#22645 LC_TIME_NAMES: Statement not replicated

Implementing event based replication of LC_TIME_NAMES for 5.0
(as a replacement of previously made ONE_SHOT replication)


mysql-test/r/mysqlbinlog.result:
  Fixing results
mysql-test/r/rpl_locale.result:
  Fixing results
mysql-test/t/disabled.def:
  Enabling rpl_locale
mysql-test/t/mysqlbinlog.test:
  Check "mysqlbinlog | mysql" reproduces lc_time_names correctly.
mysql-test/t/rpl_locale.test:
  Adding new test: that setting lc_time_names back to en_US works fine.
sql/log_event.cc:
  Implementing event based replication of LC_TIME_NAMES for 5.0
  (as a replacement of previously made ONE_SHOT replication)
sql/log_event.h:
  Adding new Q_*_CODE
  Adding "lc_time_names_number" members into Query_log_event and PRINT_EVENT_INFO

mysql-test/r/mysqlbinlog.result

@@ -194,4 +194,24 @@ select * from t5  /* must be (1),(1) */;
 a
 1
 1
+flush logs;
+drop table if exists t5;
+create table t5 (c1 int, c2 varchar(128) character set latin1 not null);
+insert into t5 values (1, date_format('2001-01-01','%W'));
+set lc_time_names=de_DE;
+insert into t5 values (2, date_format('2001-01-01','%W'));
+set lc_time_names=en_US;
+insert into t5 values (3, date_format('2001-01-01','%W'));
+select * from t5 order by c1;
+c1	c2
+1	Monday
+2	Montag
+3	Monday
+flush logs;
+drop table t5;
+select * from t5 order by c1;
+c1	c2
+1	Monday
+2	Montag
+3	Monday
 drop table t1, t2, t03, t04, t3, t4, t5;

mysql-test/r/rpl_locale.result

@@ -7,10 +7,14 @@ start slave;
 create table t1 (s1 char(10));
 set lc_time_names= 'de_DE';
 insert into t1 values (date_format('2001-01-01','%W'));
+set lc_time_names= 'en_US';
+insert into t1 values (date_format('2001-01-01','%W'));
 select * from t1;
 s1
 Montag
+Monday
 select * from t1;
 s1
 Montag
+Monday
 drop table t1;

mysql-test/t/disabled.def

@@ -11,6 +11,5 @@
 ##############################################################################
 
 ndb_load        : Bug#17233
-rpl_locale	: Bug#22645
 user_limits     : Bug#23921 random failure of user_limits.test
 

mysql-test/t/mysqlbinlog.test

@@ -134,6 +134,25 @@ flush logs;
 --exec $MYSQL_BINLOG --short-form $MYSQLTEST_VARDIR/log/master-bin.000006 | $MYSQL
 select * from t5  /* must be (1),(1) */;
 
+#
+# Bug#22645 LC_TIME_NAMES: Statement not replicated
+# Check that a dump created by mysqlbinlog reproduces
+# lc_time_names dependent values correctly
+#
+flush logs;
+drop table if exists t5;
+create table t5 (c1 int, c2 varchar(128) character set latin1 not null);
+insert into t5 values (1, date_format('2001-01-01','%W'));
+set lc_time_names=de_DE;
+insert into t5 values (2, date_format('2001-01-01','%W'));
+set lc_time_names=en_US;
+insert into t5 values (3, date_format('2001-01-01','%W'));
+select * from t5 order by c1;
+flush logs;
+drop table t5;
+--exec $MYSQL_BINLOG --short-form $MYSQLTEST_VARDIR/log/master-bin.000007 | $MYSQL
+select * from t5 order by c1;
+
 # clean up
 drop table t1, t2, t03, t04, t3, t4, t5; 
 

mysql-test/t/rpl_locale.test

@@ -9,6 +9,8 @@ connection master;
 create table t1 (s1 char(10));
 set lc_time_names= 'de_DE';
 insert into t1 values (date_format('2001-01-01','%W'));
+set lc_time_names= 'en_US';
+insert into t1 values (date_format('2001-01-01','%W'));
 select * from t1;
 sync_slave_with_master;
 connection slave;

sql/log_event.cc

@@ -1088,7 +1088,8 @@ bool Query_log_event::write(IO_CACHE* file)
             1+1+FN_REFLEN+ // code of catalog and catalog length and catalog
             1+4+           // code of autoinc and the 2 autoinc variables
             1+6+           // code of charset and charset
-            1+1+MAX_TIME_ZONE_NAME_LENGTH // code of tz and tz length and tz name
+            1+1+MAX_TIME_ZONE_NAME_LENGTH+ // code of tz and tz length and tz name
+            1+2            // code of lc_time_names and lc_time_names
             ], *start, *start_of_status;
   ulong event_length;
 
@@ -1200,6 +1201,13 @@ bool Query_log_event::write(IO_CACHE* file)
     memcpy(start, time_zone_str, time_zone_len);
     start+= time_zone_len;
   }
+  if (lc_time_names_number)
+  {
+    DBUG_ASSERT(lc_time_names_number <= 0xFFFF);
+    *start++= Q_LC_TIME_NAMES_CODE;
+    int2store(start, lc_time_names_number);
+    start+= 2;
+  }
   /*
     Here there could be code like
     if (command-line-option-which-says-"log_this_variable" && inited)
@@ -1264,7 +1272,8 @@ Query_log_event::Query_log_event(THD* thd_arg, const char* query_arg,
    flags2_inited(1), sql_mode_inited(1), charset_inited(1),
    sql_mode(thd_arg->variables.sql_mode),
    auto_increment_increment(thd_arg->variables.auto_increment_increment),
-   auto_increment_offset(thd_arg->variables.auto_increment_offset)
+   auto_increment_offset(thd_arg->variables.auto_increment_offset),
+   lc_time_names_number(thd_arg->variables.lc_time_names->number)
 {
   time_t end_time;
   time(&end_time);
@@ -1334,7 +1343,7 @@ Query_log_event::Query_log_event(const char* buf, uint event_len,
    db(NullS), catalog_len(0), status_vars_len(0),
    flags2_inited(0), sql_mode_inited(0), charset_inited(0),
    auto_increment_increment(1), auto_increment_offset(1),
-   time_zone_len(0)
+   time_zone_len(0), lc_time_names_number(0)
 {
   ulong data_len;
   uint32 tmp;
@@ -1435,6 +1444,10 @@ Query_log_event::Query_log_event(const char* buf, uint event_len,
       pos+= catalog_len+2; // leap over end 0
       catalog_nz= 0; // catalog has end 0 in event
       break;
+    case Q_LC_TIME_NAMES_CODE:
+      lc_time_names_number= uint2korr(pos);
+      pos+= 2;
+      break;
     default:
       /* That's why you must write status vars in growing order of code */
       DBUG_PRINT("info",("Query_log_event has unknown status vars (first has\
@@ -1619,6 +1632,11 @@ void Query_log_event::print_query_header(FILE* file,
       memcpy(print_event_info->time_zone_str, time_zone_str, time_zone_len+1);
     }
   }
+  if (lc_time_names_number != print_event_info->lc_time_names_number)
+  {
+    fprintf(file, "SET @@session.lc_time_names=%d;\n", lc_time_names_number);
+    print_event_info->lc_time_names_number= lc_time_names_number;
+  }
 }
 
 
@@ -1771,6 +1789,19 @@ int Query_log_event::exec_event(struct st_relay_log_info* rli,
           goto compare_errors;
         }
       }
+      if (lc_time_names_number)
+      {
+        if (!(thd->variables.lc_time_names=
+              my_locale_by_number(lc_time_names_number)))
+        {
+          my_printf_error(ER_UNKNOWN_ERROR,
+                      "Unknown locale: '%d'", MYF(0), lc_time_names_number);
+          thd->variables.lc_time_names= &my_locale_en_US;
+          goto compare_errors;
+        }
+      }
+      else
+        thd->variables.lc_time_names= &my_locale_en_US;
 
       /* Execute the query (note that we bypass dispatch_command()) */
       mysql_parse(thd, thd->query, thd->query_length);

sql/log_event.h

@@ -271,6 +271,8 @@ struct sql_ex_info
 */
 #define Q_CATALOG_NZ_CODE       6
 
+#define Q_LC_TIME_NAMES_CODE    7
+
 /* Intvar event post-header */
 
 #define I_TYPE_OFFSET        0
@@ -507,9 +509,11 @@ typedef struct st_print_event_info
   bool charset_inited;
   char charset[6]; // 3 variables, each of them storable in 2 bytes
   char time_zone_str[MAX_TIME_ZONE_NAME_LENGTH];
+  uint lc_time_names_number;
   st_print_event_info()
     :flags2_inited(0), sql_mode_inited(0),
-     auto_increment_increment(1),auto_increment_offset(1), charset_inited(0)
+     auto_increment_increment(1),auto_increment_offset(1), charset_inited(0),
+     lc_time_names_number(0)
     {
       /*
         Currently we only use static PRINT_EVENT_INFO objects, so zeroed at
@@ -784,6 +788,7 @@ class Query_log_event: public Log_event
   char charset[6];
   uint time_zone_len; /* 0 means uninited */
   const char *time_zone_str;
+  uint lc_time_names_number; /* 0 means en_US */
 
 #ifndef MYSQL_CLIENT