cleanup

Helper class to swicth to relaxed checks during field copy.
Temporarily.

mysql-test/main/olap.result

-drop table if exists t1,t2;
 set @sav_dpi= @@div_precision_increment;
 set div_precision_increment= 5;
 show variables like 'div_precision_increment';

mysql-test/main/olap.test

---disable_warnings
-drop table if exists t1,t2;
---enable_warnings
-
 set @sav_dpi= @@div_precision_increment;
 set div_precision_increment= 5;
 show variables like 'div_precision_increment';

mysql-test/main/type_date.result

-drop table if exists t1,t2;
 create table t1 (a char(16), b date, c datetime);
 insert into t1 SET a='test 2000-01-01', b='2000-01-01', c='2000-01-01';
 select * from t1 where c = '2000-01-01';

mysql-test/main/type_date.test

 #
 # test of problem with date fields
 #
---disable_warnings
-drop table if exists t1,t2;
---enable_warnings
-
 create table t1 (a char(16), b date, c datetime);
 insert into t1 SET a='test 2000-01-01', b='2000-01-01', c='2000-01-01';
 select * from t1 where c = '2000-01-01';

sql/item.cc

@@ -1472,12 +1472,8 @@ int Item::save_in_field_no_warnings(Field *field, bool no_conversions)
 {
   int res;
   TABLE *table= field->table;
-  THD *thd= table->in_use;
-  Check_level_instant_set check_level_save(thd, CHECK_FIELD_IGNORE);
-  Sql_mode_save sql_mode(thd);
-  thd->variables.sql_mode&= ~(MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE);
-  thd->variables.sql_mode|= MODE_INVALID_DATES;
   MY_BITMAP *old_map= dbug_tmp_use_all_columns(table, &table->write_set);
+  Use_relaxed_field_copy urfc(table->in_use);
   res= save_in_field(field, no_conversions);
   dbug_tmp_restore_column_map(&table->write_set, old_map);
   return res;

sql/sql_class.h

@@ -6881,6 +6881,19 @@ class Check_level_instant_set
 };
 
 
+class Use_relaxed_field_copy: public Sql_mode_save,
+                              public Check_level_instant_set
+{
+public:
+  Use_relaxed_field_copy(THD *thd) :
+      Sql_mode_save(thd), Check_level_instant_set(thd, CHECK_FIELD_IGNORE)
+  {
+    thd->variables.sql_mode&= ~(MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE);
+    thd->variables.sql_mode|= MODE_INVALID_DATES;
+  }
+};
+
+
 /**
   This class resembles the SQL Standard schema qualified object name:
   <schema qualified name> ::= [ <schema name> <period> ] <qualified identifier>

sql/sql_select.h

@@ -1914,11 +1914,7 @@ class store_key :public Sql_alloc
   enum store_key_result copy()
   {
     enum store_key_result result;
-    THD *thd= to_field->table->in_use;
-    Check_level_instant_set check_level_save(thd, CHECK_FIELD_IGNORE);
-    Sql_mode_save sql_mode(thd);
-    thd->variables.sql_mode&= ~(MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE);
-    thd->variables.sql_mode|= MODE_INVALID_DATES;
+    Use_relaxed_field_copy urfc(to_field->table->in_use);
     result= copy_inner();
     return result;
   }