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First stage of table definition cache

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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
This commit is contained in:
monty@mysql.com
2005-01-06 13:00:13 +02:00
parent 7cf8285b3f
commit d35140a851
57 changed files with 1542 additions and 1475 deletions
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12
sql/sql_help.cc
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@@ -272,9 +272,9 @@ int get_topics_for_keyword(THD *thd, TABLE *topics, TABLE *relations,
DBUG_ENTER("get_topics_for_keyword");
if ((iindex_topic= find_type((char*) primary_key_name,
&topics->keynames, 1+2)-1)<0 ||
&topics->s->keynames, 1+2)-1)<0 ||
(iindex_relations= find_type((char*) primary_key_name,
&relations->keynames, 1+2)-1)<0)
&relations->s->keynames, 1+2)-1)<0)
{
my_message(ER_CORRUPT_HELP_DB, ER(ER_CORRUPT_HELP_DB), MYF(0));
DBUG_RETURN(-1);
@@ -620,16 +620,16 @@ bool mysqld_help(THD *thd, const char *mask)
TABLE_LIST *leaves= 0;
TABLE_LIST tables[4];
bzero((gptr)tables,sizeof(tables));
tables[0].alias= tables[0].real_name= (char*) "help_topic";
tables[0].alias= tables[0].table_name= (char*) "help_topic";
tables[0].lock_type= TL_READ;
tables[0].next_global= tables[0].next_local= &tables[1];
tables[1].alias= tables[1].real_name= (char*) "help_category";
tables[1].alias= tables[1].table_name= (char*) "help_category";
tables[1].lock_type= TL_READ;
tables[1].next_global= tables[1].next_local= &tables[2];
tables[2].alias= tables[2].real_name= (char*) "help_relation";
tables[2].alias= tables[2].table_name= (char*) "help_relation";
tables[2].lock_type= TL_READ;
tables[2].next_global= tables[2].next_local= &tables[3];
tables[3].alias= tables[3].real_name= (char*) "help_keyword";
tables[3].alias= tables[3].table_name= (char*) "help_keyword";
tables[3].lock_type= TL_READ;
tables[0].db= tables[1].db= tables[2].db= tables[3].db= (char*) "mysql";