diff options
Diffstat (limited to 'src/include/access/heapam.h')
| -rw-r--r-- | src/include/access/heapam.h | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/src/include/access/heapam.h b/src/include/access/heapam.h index 7301be4ae3..085501be7d 100644 --- a/src/include/access/heapam.h +++ b/src/include/access/heapam.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.112 2006/06/27 02:51:39 tgl Exp $ + * $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.113 2006/07/02 02:23:22 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -22,6 +22,7 @@ #include "nodes/primnodes.h" #include "storage/block.h" #include "storage/lmgr.h" +#include "utils/array.h" #include "utils/rel.h" #include "utils/tqual.h" @@ -227,4 +228,32 @@ extern MinimalTuple minimal_tuple_from_heap_tuple(HeapTuple htup); extern HeapTuple heap_addheader(int natts, bool withoid, Size structlen, void *structure); +extern HeapTuple build_class_tuple(Form_pg_class pgclass, ArrayType *options); + +/* + * HeapOption + * Internal data of heaps. + */ +typedef struct HeapOption +{ + int32 vl_len; + int fillfactor; +} HeapOption; + +extern bytea *heap_option(char relkind, ArrayType *options); + +/* + * HeapGetFillFactor + * Returns the heap's fillfactor. + */ +#define HeapGetFillFactor(relation) \ + (((HeapOption*)(relation)->rd_options)->fillfactor) + +/* + * HeapGetPageFreeSpace + * Returns the heap's freespace per page in bytes. + */ +#define HeapGetPageFreeSpace(relation) \ + (BLCKSZ * (100 - HeapGetFillFactor(relation)) / 100) + #endif /* HEAPAM_H */ |