diff options
| -rw-r--r-- | contrib/pg_freespacemap/pg_freespacemap.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/contrib/pg_freespacemap/pg_freespacemap.c b/contrib/pg_freespacemap/pg_freespacemap.c index cfe5cb0268c..e4475c1ffc1 100644 --- a/contrib/pg_freespacemap/pg_freespacemap.c +++ b/contrib/pg_freespacemap/pg_freespacemap.c @@ -3,7 +3,7 @@ * pg_freespacemap.c * display some contents of the free space relation and page maps. * - * $PostgreSQL: pgsql/contrib/pg_freespacemap/pg_freespacemap.c,v 1.9 2006/10/19 18:32:46 tgl Exp $ + * $PostgreSQL: pgsql/contrib/pg_freespacemap/pg_freespacemap.c,v 1.9.2.1 2009/04/07 18:11:04 tgl Exp $ *------------------------------------------------------------------------- */ #include "postgres.h" @@ -94,6 +94,7 @@ pg_freespacemap_pages(PG_FUNCTION_ARGS) if (SRF_IS_FIRSTCALL()) { int i; + int nchunks; /* Size of freespace.c's arena. */ int numPages; /* Max possible no. of pages in map. */ int nPages; /* Mapped pages for a relation. */ @@ -102,7 +103,10 @@ pg_freespacemap_pages(PG_FUNCTION_ARGS) */ FreeSpaceMap = GetFreeSpaceMap(); - numPages = MaxFSMPages; + /* this must match calculation in InitFreeSpaceMap(): */ + nchunks = (MaxFSMPages - 1) / CHUNKPAGES + 1; + /* Worst case (lots of indexes) could have this many pages: */ + numPages = nchunks * INDEXCHUNKPAGES; funcctx = SRF_FIRSTCALL_INIT(); |