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Merge tsmith@bk-internal.mysql.com:/home/bk/mysql-5.0-opt

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into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50
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tsmith@ramayana.hindu.god
2007-08-01 18:39:13 -06:00
parent 0233a79321 181da56554
commit 534c3f325d
179 changed files with 1817 additions and 6476 deletions
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40
sql/sql_base.cc
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@@ -1037,6 +1037,31 @@ TABLE **find_temporary_table(THD *thd, const char *db, const char *table_name)
return 0; // Not a temporary table
}
/**
Drop a temporary table.
Try to locate the table in the list of thd->temporary_tables.
If the table is found:
- if the table is in thd->locked_tables, unlock it and
remove it from the list of locked tables. Currently only transactional
temporary tables are present in the locked_tables list.
- Close the temporary table, remove its .FRM
- remove the table from the list of temporary tables
This function is used to drop user temporary tables, as well as
internal tables created in CREATE TEMPORARY TABLE ... SELECT
or ALTER TABLE. Even though part of the work done by this function
is redundant when the table is internal, as long as we
link both internal and user temporary tables into the same
thd->temporary_tables list, it's impossible to tell here whether
we're dealing with an internal or a user temporary table.
@retval TRUE the table was not found in the list of temporary tables
of this thread
@retval FALSE the table was found and dropped successfully.
*/
bool close_temporary_table(THD *thd, const char *db, const char *table_name)
{
TABLE *table,**prev;
@@ -1045,6 +1070,11 @@ bool close_temporary_table(THD *thd, const char *db, const char *table_name)
return 1;
table= *prev;
*prev= table->next;
/*
If LOCK TABLES list is not empty and contains this table,
unlock the table and remove the table from this list.
*/
mysql_lock_remove(thd, thd->locked_tables, table, FALSE);
close_temporary(table, 1);
if (thd->slave_thread)
--slave_open_temp_tables;
@@ -1120,7 +1150,7 @@ TABLE *unlink_open_table(THD *thd, TABLE *list, TABLE *find)
!memcmp(list->s->table_cache_key, key, key_length))
{
if (thd->locked_tables)
mysql_lock_remove(thd, thd->locked_tables,list);
mysql_lock_remove(thd, thd->locked_tables, list, TRUE);
VOID(hash_delete(&open_cache,(byte*) list)); // Close table
}
else
@@ -1151,6 +1181,8 @@ TABLE *unlink_open_table(THD *thd, TABLE *list, TABLE *find)
dropped is already unlocked. In the former case it will
also remove lock on the table. But one should not rely on
this behaviour as it may change in future.
Currently, however, this function is never called for a
table that was locked with LOCK TABLES.
*/
void drop_open_table(THD *thd, TABLE *table, const char *db_name,
@@ -2099,7 +2131,7 @@ bool close_data_tables(THD *thd,const char *db, const char *table_name)
if (!strcmp(table->s->table_name, table_name) &&
!strcmp(table->s->db, db))
{
mysql_lock_remove(thd, thd->locked_tables,table);
mysql_lock_remove(thd, thd->locked_tables, table, TRUE);
table->file->close();
table->db_stat=0;
}
@@ -2239,7 +2271,7 @@ void close_old_data_files(THD *thd, TABLE *table, bool morph_locks,
instances of this table.
*/
mysql_lock_abort(thd, table);
mysql_lock_remove(thd, thd->locked_tables, table);
mysql_lock_remove(thd, thd->locked_tables, table, TRUE);
/*
We want to protect the table from concurrent DDL operations
(like RENAME TABLE) until we will re-open and re-lock it.
@@ -2343,7 +2375,7 @@ bool drop_locked_tables(THD *thd,const char *db, const char *table_name)
if (!strcmp(table->s->table_name, table_name) &&
!strcmp(table->s->db, db))
{
mysql_lock_remove(thd, thd->locked_tables,table);
mysql_lock_remove(thd, thd->locked_tables, table, TRUE);
VOID(hash_delete(&open_cache,(byte*) table));
found=1;
}