Bug#22645 LC_TIME_NAMES: Statement not replicated

Problem: replication of LC_TIME_NAMES didn't work.
Thus, INSERTS or UPDATES using date_format() always
worked with en_US on the slave side.
Fix: adding ONE_SHOT implementation for LC_TIME_NAMES.

mysql-test/r/rpl_locale.result

+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+create table t1 (s1 char(10));
+set lc_time_names= 'de_DE';
+insert into t1 values (date_format('2001-01-01','%W'));
+select * from t1;
+s1
+Montag
+select * from t1;
+s1
+Montag
+drop table t1;

mysql-test/r/variables.result

@@ -499,6 +499,63 @@ set names latin1;
 select @@have_innodb;
 @@have_innodb
 #
+*** Various tests with LC_TIME_NAMES
+*** LC_TIME_NAMES: testing case insensitivity
+set @@lc_time_names='ru_ru';
+select @@lc_time_names;
+@@lc_time_names
+ru_RU
+*** LC_TIME_NAMES: testing with a user variable
+set @lc='JA_JP';
+set @@lc_time_names=@lc;
+select @@lc_time_names;
+@@lc_time_names
+ja_JP
+*** LC_TIME_NAMES: testing with string expressions
+set lc_time_names=concat('de','_','DE');
+select @@lc_time_names;
+@@lc_time_names
+de_DE
+set lc_time_names=concat('de','+','DE');
+ERROR HY000: Unknown locale: 'de+DE'
+select @@lc_time_names;
+@@lc_time_names
+de_DE
+LC_TIME_NAMES: testing with numeric expressions
+set @@lc_time_names=1+2;
+select @@lc_time_names;
+@@lc_time_names
+sv_SE
+set @@lc_time_names=1/0;
+ERROR 42000: Incorrect argument type to variable 'lc_time_names'
+select @@lc_time_names;
+@@lc_time_names
+sv_SE
+set lc_time_names=en_US;
+LC_TIME_NAMES: testing NULL and a negative number:
+set lc_time_names=NULL;
+ERROR 42000: Variable 'lc_time_names' can't be set to the value of 'NULL'
+set lc_time_names=-1;
+ERROR HY000: Unknown locale: '-1'
+select @@lc_time_names;
+@@lc_time_names
+en_US
+LC_TIME_NAMES: testing locale with the last ID:
+set lc_time_names=108;
+select @@lc_time_names;
+@@lc_time_names
+zh_HK
+LC_TIME_NAMES: testing a number beyond the valid ID range:
+set lc_time_names=109;
+ERROR HY000: Unknown locale: '109'
+select @@lc_time_names;
+@@lc_time_names
+zh_HK
+LC_TIME_NAMES: testing that 0 is en_US:
+set lc_time_names=0;
+select @@lc_time_names;
+@@lc_time_names
+en_US
 set @test = @@query_prealloc_size;
 set @@query_prealloc_size = @test;
 select @@query_prealloc_size = @test;

mysql-test/t/rpl_locale.test

+# Replication of locale variables
+
+source include/master-slave.inc;
+
+#
+# Bug#22645 LC_TIME_NAMES: Statement not replicated
+#
+connection master;
+create table t1 (s1 char(10));
+set lc_time_names= 'de_DE';
+insert into t1 values (date_format('2001-01-01','%W'));
+select * from t1;
+sync_slave_with_master;
+connection slave;
+select * from t1;
+connection master;
+drop table t1;
+sync_slave_with_master;
+
+# End of 4.1 tests
+
+

mysql-test/t/variables.test

@@ -396,6 +396,50 @@ set names latin1;
 --replace_column 1 #
 select @@have_innodb;
 
+#
+# Tests for lc_time_names
+# Note, when adding new locales, please fix ID accordingly:
+# - to test the last ID (currently 108)
+# - and the next after the last (currently 109)
+#
+--echo *** Various tests with LC_TIME_NAMES
+--echo *** LC_TIME_NAMES: testing case insensitivity
+set @@lc_time_names='ru_ru';
+select @@lc_time_names;
+--echo *** LC_TIME_NAMES: testing with a user variable
+set @lc='JA_JP';
+set @@lc_time_names=@lc;
+select @@lc_time_names;
+--echo *** LC_TIME_NAMES: testing with string expressions
+set lc_time_names=concat('de','_','DE');
+select @@lc_time_names;
+--error 1105
+set lc_time_names=concat('de','+','DE');
+select @@lc_time_names;
+--echo LC_TIME_NAMES: testing with numeric expressions
+set @@lc_time_names=1+2;
+select @@lc_time_names;
+--error 1232
+set @@lc_time_names=1/0;
+select @@lc_time_names;
+set lc_time_names=en_US;
+--echo LC_TIME_NAMES: testing NULL and a negative number:
+--error 1231
+set lc_time_names=NULL;
+--error 1105
+set lc_time_names=-1;
+select @@lc_time_names;
+--echo LC_TIME_NAMES: testing locale with the last ID:
+set lc_time_names=108;
+select @@lc_time_names;
+--echo LC_TIME_NAMES: testing a number beyond the valid ID range:
+--error 1105
+set lc_time_names=109;
+select @@lc_time_names;
+--echo LC_TIME_NAMES: testing that 0 is en_US:
+set lc_time_names=0;
+select @@lc_time_names;
+
 #
 # Bug #13334: query_prealloc_size default less than minimum
 #

sql/log.cc

@@ -1350,6 +1350,21 @@ COLLATION_CONNECTION=%u,COLLATION_DATABASE=%u,COLLATION_SERVER=%u",
         if (e.write(file))
           goto err;
       }
+      /*
+        Use the same ONE_SHOT trick for making replication of lc_time_names.
+      */
+      if (thd->variables.lc_time_names->number) // Not en_US
+      {
+        char buf[32];
+        uint length= my_snprintf(buf, sizeof(buf),
+                                 "SET ONE_SHOT LC_TIME_NAMES=%u", 
+                                 (uint) thd->variables.lc_time_names->number);
+        Query_log_event e(thd, buf, length, 0, FALSE);
+        e.set_log_pos(this);
+	e.error_code= 0;	// This statement cannot fail (see [1]).
+        if (e.write(file))
+          goto err;
+      }
 #endif
 
       if (thd->last_insert_id_used)

sql/mysql_priv.h

@@ -71,6 +71,7 @@ extern CHARSET_INFO *national_charset_info, *table_alias_charset;
 
 typedef struct my_locale_st
 {
+  uint  number;
   const char *name;
   const char *description;
   const bool is_ascii;
@@ -84,6 +85,7 @@ extern MY_LOCALE my_locale_en_US;
 extern MY_LOCALE *my_locales[];
 
 MY_LOCALE *my_locale_by_name(const char *name);
+MY_LOCALE *my_locale_by_number(uint number);
 
 /***************************************************************************
   Configuration parameters

sql/set_var.cc

@@ -2576,19 +2576,38 @@ void sys_var_thd_time_zone::set_default(THD *thd, enum_var_type type)
 
 bool sys_var_thd_lc_time_names::check(THD *thd, set_var *var)
 {
-  char *locale_str =var->value->str_value.c_ptr();
-  MY_LOCALE *locale_match=  my_locale_by_name(locale_str);
+  MY_LOCALE *locale_match;
 
-  if(locale_match == NULL) 
+  if (var->value->result_type() == INT_RESULT)
   {
-    my_printf_error(ER_UNKNOWN_ERROR, "Unknown locale: '%s'", MYF(0), locale_str);
-    return 1;
+    if (!(locale_match= my_locale_by_number((uint) var->value->val_int())))
+    {
+      char buf[20];
+      int10_to_str((int) var->value->val_int(), buf, -10);
+      my_printf_error(ER_UNKNOWN_ERROR, "Unknown locale: '%s'", MYF(0), buf);
+      return 1;
+    }
   }
-  else 
+  else // STRING_RESULT
   {
-    var->save_result.locale_value= locale_match;
-    return 0;
+    char buff[6]; 
+    String str(buff, sizeof(buff), &my_charset_latin1), *res;
+    if (!(res=var->value->val_str(&str)))
+    {
+      my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), name, "NULL");
+      return 1;
+    }
+    const char *locale_str= res->c_ptr();
+    if (!(locale_match= my_locale_by_name(locale_str)))
+    {
+      my_printf_error(ER_UNKNOWN_ERROR,
+                      "Unknown locale: '%s'", MYF(0), locale_str);
+      return 1;
+    }
   }
+
+  var->save_result.locale_value= locale_match;
+  return 0;
 }
 
 

sql/set_var.h

@@ -764,12 +764,16 @@ class sys_var_thd_lc_time_names :public sys_var_thd
 public:
   sys_var_thd_lc_time_names(const char *name_arg):
     sys_var_thd(name_arg) 
-  {}
+  {
+#if MYSQL_VERSION_ID < 50000
+    no_support_one_shot= 0;
+#endif
+  }
   bool check(THD *thd, set_var *var);
   SHOW_TYPE type() { return SHOW_CHAR; }
   bool check_update_type(Item_result type)
   {
-    return type != STRING_RESULT;		/* Only accept strings */
+    return ((type != STRING_RESULT) && (type != INT_RESULT));
   }
   bool check_default(enum_var_type type) { return 0; }
   bool update(THD *thd, set_var *var);

sql/sql_parse.cc

@@ -1958,6 +1958,7 @@ static void reset_one_shot_variables(THD *thd)
   thd->update_charset();
   thd->variables.time_zone=
     global_system_variables.time_zone;
+  thd->variables.lc_time_names= &my_locale_en_US;
   thd->one_shot_set= 0;
 }