thd_charset has been moved to variables structure

sql/field.cc

@@ -1091,7 +1091,7 @@ longlong Field_tiny::val_int(void)
 String *Field_tiny::val_str(String *val_buffer,
 			    String *val_ptr __attribute__((unused)))
 {
-  CHARSET_INFO *cs=current_thd->thd_charset;
+  CHARSET_INFO *cs=current_thd->variables.thd_charset;
   uint length;
   uint mlength=max(field_length+1,5*cs->mbmaxlen);
   val_buffer->alloc(mlength);
@@ -1330,7 +1330,7 @@ longlong Field_short::val_int(void)
 String *Field_short::val_str(String *val_buffer,
 			     String *val_ptr __attribute__((unused)))
 {
-  CHARSET_INFO *cs=current_thd->thd_charset;
+  CHARSET_INFO *cs=current_thd->variables.thd_charset;
   uint length;
   uint mlength=max(field_length+1,7*cs->mbmaxlen);
   val_buffer->alloc(mlength);
@@ -1574,7 +1574,7 @@ longlong Field_medium::val_int(void)
 String *Field_medium::val_str(String *val_buffer,
 			      String *val_ptr __attribute__((unused)))
 {
-  CHARSET_INFO *cs=current_thd->thd_charset;
+  CHARSET_INFO *cs=current_thd->variables.thd_charset;
   uint length;
   uint mlength=max(field_length+1,10*cs->mbmaxlen);
   val_buffer->alloc(mlength);
@@ -1810,7 +1810,7 @@ longlong Field_long::val_int(void)
 String *Field_long::val_str(String *val_buffer,
 			    String *val_ptr __attribute__((unused)))
 {
-  CHARSET_INFO *cs=current_thd->thd_charset;
+  CHARSET_INFO *cs=current_thd->variables.thd_charset;
   uint length;
   uint mlength=max(field_length+1,12*cs->mbmaxlen);
   val_buffer->alloc(mlength);
@@ -2035,7 +2035,7 @@ longlong Field_longlong::val_int(void)
 String *Field_longlong::val_str(String *val_buffer,
 				String *val_ptr __attribute__((unused)))
 {
-  CHARSET_INFO *cs=current_thd->thd_charset;
+  CHARSET_INFO *cs=current_thd->variables.thd_charset;
   uint length;
   uint mlength=max(field_length+1,22*cs->mbmaxlen);
   val_buffer->alloc(mlength);
@@ -4432,14 +4432,14 @@ int Field_blob::store(const char *from,uint len,CHARSET_INFO *cs)
 
 int Field_blob::store(double nr)
 {
-  value.set(nr,2,current_thd->thd_charset);
+  value.set(nr,2,current_thd->variables.thd_charset);
   return Field_blob::store(value.ptr(),(uint) value.length(), value.charset());
 }
 
 
 int Field_blob::store(longlong nr)
 {
-  value.set(nr,current_thd->thd_charset);
+  value.set(nr,current_thd->variables.thd_charset);
   return Field_blob::store(value.ptr(), (uint) value.length(), value.charset());
 }
 

sql/item.cc

@@ -151,7 +151,7 @@ bool Item::get_time(TIME *ltime)
 
 CHARSET_INFO * Item::thd_charset() const
 {
-  return current_thd->thd_charset;
+  return current_thd->variables.thd_charset;
 }
 
 Item_field::Item_field(Field *f) :Item_ident(NullS,f->table_name,f->field_name)

sql/item_strfunc.cc

@@ -1383,14 +1383,14 @@ String *Item_func_database::val_str(String *str)
     str->length(0);
   else
     str->copy((const char*) thd->db,(uint) strlen(thd->db),
-	      system_charset_info, thd->thd_charset);
+	      system_charset_info, thd->variables.thd_charset);
   return str;
 }
 
 String *Item_func_user::val_str(String *str)
 {
   THD          *thd=current_thd;
-  CHARSET_INFO *cs=thd->thd_charset;
+  CHARSET_INFO *cs=thd->variables.thd_charset;
   const char   *host=thd->host ? thd->host : thd->ip ? thd->ip : "";
   uint32       res_length=(strlen(thd->user)+strlen(host)+10) * cs->mbmaxlen;
 

sql/protocol.cc

@@ -687,7 +687,7 @@ bool Protocol_simple::store(float from, uint32 decimals, String *buffer)
   DBUG_ASSERT(field_types == 0 ||
 	      field_types[field_pos++] == MYSQL_TYPE_FLOAT);
 #endif
-  buffer->set((double) from, decimals, thd->thd_charset);
+  buffer->set((double) from, decimals, thd->variables.thd_charset);
   return net_store_data(packet,(char*) buffer->ptr(), buffer->length());
 }
 
@@ -697,7 +697,7 @@ bool Protocol_simple::store(double from, uint32 decimals, String *buffer)
   DBUG_ASSERT(field_types == 0 ||
 	      field_types[field_pos++] == MYSQL_TYPE_DOUBLE);
 #endif
-  buffer->set(from, decimals, thd->thd_charset);
+  buffer->set(from, decimals, thd->variables.thd_charset);
   return net_store_data(packet,(char*) buffer->ptr(), buffer->length());
 }
 

sql/sql_analyse.cc

@@ -898,14 +898,14 @@ int collect_real(double *element, element_count count __attribute__((unused)),
 		 TREE_INFO *info)
 {
   char buff[MAX_FIELD_WIDTH];
-  String s(buff, sizeof(buff),current_thd->thd_charset);
+  String s(buff, sizeof(buff),current_thd->variables.thd_charset);
 
   if (info->found)
     info->str->append(',');
   else
     info->found = 1;
   info->str->append('\'');
-  s.set(*element, info->item->decimals, current_thd->thd_charset);
+  s.set(*element, info->item->decimals, current_thd->variables.thd_charset);
   info->str->append(s);
   info->str->append('\'');
   return 0;

sql/sql_class.cc

@@ -105,7 +105,6 @@ THD::THD():user_time(0), fatal_error(0),
   cond_count=0;
   warn_id= 0;
   db_charset=default_charset_info;
-  thd_charset=default_charset_info;
   mysys_var=0;
 #ifndef DBUG_OFF
   dbug_sentry=THD_SENTRY_MAGIC;
@@ -190,6 +189,7 @@ void THD::init(void)
 {
   pthread_mutex_lock(&LOCK_global_system_variables);
   variables= global_system_variables;
+  variables.thd_charset=default_charset_info;
   pthread_mutex_unlock(&LOCK_global_system_variables);
   server_status= SERVER_STATUS_AUTOCOMMIT;
   options= thd_startup_options;

sql/sql_class.h

@@ -374,6 +374,7 @@ struct system_variables
   my_bool low_priority_updates; 
 
   CONVERT	*convert_set;
+  CHARSET_INFO 	*thd_charset;
 };
 
 
@@ -487,7 +488,6 @@ class THD :public ilink {
   table_map  used_tables;
   USER_CONN *user_connect;
   CHARSET_INFO *db_charset;   
-  CHARSET_INFO *thd_charset;
   List<Item> *possible_loops; // Items that may cause loops in subselects
   List	     <MYSQL_ERROR> warn_list;  
   uint	     warn_count[(uint) MYSQL_ERROR::WARN_LEVEL_END];

sql/sql_db.cc

@@ -599,7 +599,7 @@ bool mysql_change_db(THD *thd, const char *name)
   strmov(path+unpack_dirname(path,path), MY_DB_OPT_FILE);
   load_db_opt(path, &create);
   thd->db_charset=create.table_charset;
-  thd->thd_charset=thd->db_charset ? thd->db_charset : default_charset_info;
+  thd->variables.thd_charset=thd->db_charset ? thd->db_charset : default_charset_info;
   DBUG_RETURN(0);
 }
 

sql/sql_show.cc

@@ -713,7 +713,7 @@ mysqld_show_fields(THD *thd, TABLE_LIST *table_list,const char *wild,
       {
         byte *pos;
         uint flags=field->flags;
-        String type(tmp,sizeof(tmp),current_thd->thd_charset);
+        String type(tmp,sizeof(tmp),current_thd->variables.thd_charset);
         uint col_access;
         bool null_default_value=0;
 

sql/sql_yacc.yy

@@ -3600,13 +3600,13 @@ opt_ignore_lines:
 /* Common definitions */
 
 text_literal:
-	TEXT_STRING { $$ = new Item_string($1.str,$1.length,YYTHD->thd_charset); }
+	TEXT_STRING { $$ = new Item_string($1.str,$1.length,YYTHD->variables.thd_charset); }
 	| UNDERSCORE_CHARSET TEXT_STRING { $$ = new Item_string($2.str,$2.length,Lex->charset); }
 	| text_literal TEXT_STRING
 	{ ((Item_string*) $1)->append($2.str,$2.length); };
 
 text_string:
-	TEXT_STRING	{ $$=  new String($1.str,$1.length,YYTHD->thd_charset); }
+	TEXT_STRING	{ $$=  new String($1.str,$1.length,YYTHD->variables.thd_charset); }
 	| HEX_NUM
 	  {
 	    Item *tmp = new Item_varbinary($1.str,$1.length);