diff options
Diffstat (limited to 'src/backend/nodes/tidbitmap.c')
| -rw-r--r-- | src/backend/nodes/tidbitmap.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/backend/nodes/tidbitmap.c b/src/backend/nodes/tidbitmap.c index 777bf6482d2..e36a8d9806a 100644 --- a/src/backend/nodes/tidbitmap.c +++ b/src/backend/nodes/tidbitmap.c @@ -23,7 +23,7 @@ * Copyright (c) 2003-2005, PostgreSQL Global Development Group * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/tidbitmap.c,v 1.5 2005/07/24 02:25:26 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/tidbitmap.c,v 1.6 2005/08/28 22:47:20 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -511,6 +511,15 @@ tbm_intersect_page(TIDBitmap *a, PagetableEntry *apage, const TIDBitmap *b) } /* + * tbm_is_empty - is a TIDBitmap completely empty? + */ +bool +tbm_is_empty(const TIDBitmap *tbm) +{ + return (tbm->nentries == 0); +} + +/* * tbm_begin_iterate - prepare to iterate through a TIDBitmap * * NB: after this is called, it is no longer allowed to modify the contents |