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, 3 insertions, 3 deletions

diff --git a/sql/slave.cc b/sql/slave.cc
index 6b8559859fc..0bcc1b7e852 100644
--- a/sql/slave.cc
+++ b/sql/slave.cc
@@ -893,7 +893,7 @@ bool tables_ok(THD* thd, TABLE_LIST* tables)
     some_tables_updating= 1;
     end= strmov(hash_key, tables->db ? tables->db : thd->db);
     *end++= '.';
-    len= (uint) (strmov(end, tables->real_name) - hash_key);
+    len= (uint) (strmov(end, tables->table_name) - hash_key);
     if (do_table_inited) // if there are any do's
     {
       if (hash_search(&replicate_do_table, (byte*) hash_key, len))
@@ -1520,7 +1520,7 @@ static int create_table_from_dump(THD* thd, MYSQL *mysql, const char* db,
 
   bzero((char*) &tables,sizeof(tables));
   tables.db = (char*)db;
-  tables.alias= tables.real_name= (char*)table_name;
+  tables.alias= tables.table_name= (char*)table_name;
 
   /* Drop the table if 'overwrite' is true */
   if (overwrite && mysql_rm_table(thd,&tables,1,0)) /* drop if exists */
@@ -1580,7 +1580,7 @@ static int create_table_from_dump(THD* thd, MYSQL *mysql, const char* db,
   error=file->repair(thd,&check_opt) != 0;
   thd->net.vio = save_vio;
   if (error)
-    my_error(ER_INDEX_REBUILD, MYF(0), tables.table->real_name);
+    my_error(ER_INDEX_REBUILD, MYF(0), tables.table->s->table_name);
 
 err:
   close_thread_tables(thd);