mirror of https://github.com/postgres/postgres
Improve comments.
This commit is contained in:
parent
be7c0a926b
commit
8b53eaf90c
|
@ -8,7 +8,7 @@
|
|||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/cache/Attic/temprel.c,v 1.28 2000/10/11 21:28:19 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/utils/cache/Attic/temprel.c,v 1.29 2000/10/19 23:06:24 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
@ -91,24 +91,37 @@ create_temp_relation(const char *relname, HeapTuple pg_class_tuple)
|
|||
void
|
||||
remove_all_temp_relations(void)
|
||||
{
|
||||
/* skip xact start overhead if nothing to do */
|
||||
if (temp_rels == NIL)
|
||||
return;
|
||||
|
||||
AbortOutOfAnyTransaction();
|
||||
StartTransactionCommand();
|
||||
|
||||
/*
|
||||
* The way this works is that each time through the loop, we delete
|
||||
* the frontmost entry. The DROP will call remove_temp_rel_by_relid()
|
||||
* as a side effect, thereby removing the entry in the temp_rels list.
|
||||
* So this is not an infinite loop, even though it looks like one.
|
||||
*/
|
||||
while (temp_rels != NIL)
|
||||
{
|
||||
char relname[NAMEDATALEN];
|
||||
TempTable *temp_rel = (TempTable *) lfirst(temp_rels);
|
||||
|
||||
if (temp_rel->relkind != RELKIND_INDEX)
|
||||
{
|
||||
char relname[NAMEDATALEN];
|
||||
|
||||
/* safe from deallocation */
|
||||
strcpy(relname, temp_rel->user_relname);
|
||||
heap_drop_with_catalog(relname, allowSystemTableMods);
|
||||
}
|
||||
else
|
||||
index_drop(temp_rel->relid);
|
||||
/* advance cmd counter to make catalog changes visible */
|
||||
CommandCounterIncrement();
|
||||
}
|
||||
|
||||
CommitTransactionCommand();
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue