First stage of table definition cache

Split TABLE to TABLE and TABLE_SHARE (TABLE_SHARE is still allocated as part of table, will be fixed soon)
Created Field::make_field() and made Field_num::make_field() to call this
Added 'TABLE_SHARE->db' that points to database name; Changed all usage of table_cache_key as database name to use this instead
Changed field->table_name to point to pointer to alias. This allows us to change alias for a table by just updating one pointer.
Renamed TABLE_SHARE->real_name to table_name
Renamed TABLE->table_name to alias
Renamed TABLE_LIST->real_name to table_name


include/myisam.h:
  Added const before names
mysql-test/r/group_min_max.result:
  Make results repeatable
mysql-test/t/group_min_max.test:
  Make results repeatable
sql/field.cc:
  Created Field::make_field() and made Field_num::make_field() to call this
  Use TABLE_SHARE
  Use sql_strmake() instead of sql_memdup() to simplify code
sql/field.h:
  Changed table_name to be pointer to table_name. This allows us to change alias for all fields by just changing one pointer.
  Use TABLE_SHARE
sql/field_conv.cc:
  Use TABLE_SHARE
sql/filesort.cc:
  Use TABLE_SHARE
sql/ha_berkeley.cc:
  Use TABLE_SHARE
sql/ha_heap.cc:
  Use TABLE_SHARE
sql/ha_innodb.cc:
  Use TABLE_SHARE
sql/ha_myisam.cc:
  Use TABLE_SHARE
sql/ha_myisammrg.cc:
  Use TABLE_SHARE
  Change some pointer handling to use const char*
sql/ha_ndbcluster.cc:
  Use TABLE_SHARE
sql/handler.cc:
  Use TABLE_SHARE
sql/item.cc:
  Use TABLE_SHARE
sql/item_func.cc:
  Use TABLE_SHARE
sql/item_subselect.cc:
  Use TABLE_SHARE
sql/item_sum.cc:
  Use TABLE_SHARE
sql/key.cc:
  Use TABLE_SHARE
sql/lock.cc:
  Use TABLE_SHARE
sql/log_event.cc:
  real_name -> table_name
sql/mysql_priv.h:
  Use TABLE_SHARE
sql/opt_range.cc:
  Use TABLE_SHARE
sql/opt_sum.cc:
  Use TABLE_SHARE
sql/records.cc:
  Use TABLE_SHARE
sql/repl_failsafe.cc:
  real_name -> table_name
sql/slave.cc:
  Use TABLE_SHARE
sql/sp.cc:
  Use TABLE_SHARE
sql/sp_head.cc:
  real_name -> table_name
sql/sql_acl.cc:
  Use TABLE_SHARE
  removed unnecessary assert
  fixed indentation
  changed some char * -> const char*
sql/sql_acl.h:
  changed some char* -> const char*
sql/sql_base.cc:
  Use TABLE_SHARE
sql/sql_cache.cc:
  Use TABLE_SHARE
sql/sql_class.cc:
  Use TABLE_SHARE
sql/sql_db.cc:
  real_name -> table_name
sql/sql_delete.cc:
  Use TABLE_SHARE
sql/sql_derived.cc:
  Use TABLE_SHARE
sql/sql_handler.cc:
  Use TABLE_SHARE
sql/sql_help.cc:
  Use TABLE_SHARE
sql/sql_insert.cc:
  Use TABLE_SHARE
sql/sql_load.cc:
  Use TABLE_SHARE
sql/sql_parse.cc:
  Use TABLE_SHARE
sql/sql_rename.cc:
  real_name -> table_name
sql/sql_select.cc:
  Use TABLE_SHARE
  table->blob_fields now points to field offsets, not fields
  tmp_table->table_name now points to alias name
sql/sql_show.cc:
  Use TABLE_SHARE
sql/sql_table.cc:
  Use TABLE_SHARE
sql/sql_test.cc:
  Use TABLE_SHARE
sql/sql_trigger.cc:
  Use TABLE_SHARE
sql/sql_udf.cc:
  Use TABLE_SHARE
sql/sql_union.cc:
  real_name -> table_name
sql/sql_update.cc:
  Use TABLE_SHARE
sql/sql_view.cc:
  Use TABLE_SHARE
sql/table.cc:
  Split TABLE to TABLE and TABLE_SHARE
  Changed blob_field to be field offsets instead of pointer to fields
  Only initialize table->s->default_values with default record (not all table->record[#])
  Some indentation changes
sql/table.h:
  Split TABLE to TABLE and TABLE_SHARE
sql/tztime.cc:
  real_name -> table_name
sql/unireg.cc:
  Use TABLE_SHARE
sql/unireg.h:
  Use TABLE_SHARE

1 files changed, 12 insertions, 12 deletions

diff --git a/sql/sql_delete.cc b/sql/sql_delete.cc
index 8edfc08fa82..15fbfcf928b 100644
--- a/sql/sql_delete.cc
+++ b/sql/sql_delete.cc
@@ -232,7 +232,7 @@ cleanup:
 
   delete select;
   transactional_table= table->file->has_transactions();
-  log_delayed= (transactional_table || table->tmp_table);
+  log_delayed= (transactional_table || table->s->tmp_table);
   /*
     We write to the binary log even if we deleted no row, because maybe the
     user is using this command to ensure that a table is clean on master *and
@@ -307,7 +307,7 @@ bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds)
   }
   if (unique_table(table_list, table_list->next_global))
   {
-    my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->real_name);
+    my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->table_name);
     DBUG_RETURN(TRUE);
   }
   select_lex->fix_prepare_information(thd, conds);
@@ -366,7 +366,7 @@ bool mysql_multi_delete_prepare(THD *thd)
         check_key_in_view(thd, target_tbl->correspondent_table))
     {
       my_error(ER_NON_UPDATABLE_TABLE, MYF(0),
-               target_tbl->real_name, "DELETE");
+               target_tbl->table_name, "DELETE");
       DBUG_RETURN(TRUE);
     }
     /*
@@ -381,10 +381,10 @@ bool mysql_multi_delete_prepare(THD *thd)
     {
       if (un->first_select()->linkage != DERIVED_TABLE_TYPE &&
           un->check_updateable(target_tbl->correspondent_table->db,
-                               target_tbl->correspondent_table->real_name))
+                               target_tbl->correspondent_table->table_name))
       {
         my_error(ER_UPDATE_TABLE_USED, MYF(0),
-                 target_tbl->correspondent_table->real_name);
+                 target_tbl->correspondent_table->table_name);
         DBUG_RETURN(TRUE);
       }
     }
@@ -445,7 +445,7 @@ multi_delete::initialize_tables(JOIN *join)
       tbl->used_keys.clear_all();
       if (tbl->file->has_transactions())
 	log_delayed= transactional_tables= 1;
-      else if (tbl->tmp_table != NO_TMP_TABLE)
+      else if (tbl->s->tmp_table != NO_TMP_TABLE)
 	log_delayed= 1;
       else
 	normal_tables= 1;
@@ -717,19 +717,19 @@ bool mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok)
   bzero((char*) &create_info,sizeof(create_info));
   /* If it is a temporary table, close and regenerate it */
   if (!dont_send_ok && (table_ptr=find_temporary_table(thd,table_list->db,
-						       table_list->real_name)))
+						       table_list->table_name)))
   {
     TABLE *table= *table_ptr;
     table->file->info(HA_STATUS_AUTO | HA_STATUS_NO_LOCK);
-    db_type table_type=table->db_type;
-    strmov(path,table->path);
+    db_type table_type= table->s->db_type;
+    strmov(path, table->s->path);
     *table_ptr= table->next;			// Unlink table from list
     close_temporary(table,0);
     *fn_ext(path)=0;				// Remove the .frm extension
     ha_create_table(path, &create_info,1);
     // We don't need to call invalidate() because this table is not in cache
     if ((error= (int) !(open_temporary_table(thd, path, table_list->db,
-					     table_list->real_name, 1))))
+					     table_list->table_name, 1))))
       (void) rm_temporary_table(table_type, path);
     /*
       If we return here we will not have logged the truncation to the bin log
@@ -739,7 +739,7 @@ bool mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok)
   }
 
   (void) sprintf(path,"%s/%s/%s%s",mysql_data_home,table_list->db,
-		 table_list->real_name,reg_ext);
+		 table_list->table_name,reg_ext);
   fn_format(path,path,"","",4);
 
   if (!dont_send_ok)
@@ -748,7 +748,7 @@ bool mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok)
     if ((table_type=get_table_type(path)) == DB_TYPE_UNKNOWN)
     {
       my_error(ER_NO_SUCH_TABLE, MYF(0),
-               table_list->db, table_list->real_name);
+               table_list->db, table_list->table_name);
       DBUG_RETURN(TRUE);
     }
     if (!ha_supports_generate(table_type))