diff options
Diffstat (limited to 'src/include/access/genam.h')
| -rw-r--r-- | src/include/access/genam.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/include/access/genam.h b/src/include/access/genam.h index 0102d8c7e43..db6795c0933 100644 --- a/src/include/access/genam.h +++ b/src/include/access/genam.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: genam.h,v 1.25 2001/01/24 19:43:19 momjian Exp $ + * $Id: genam.h,v 1.26 2001/07/15 22:48:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -18,8 +18,21 @@ #include "access/relscan.h" #include "access/sdir.h" + +/* Struct for statistics returned by bulk-delete operation */ +typedef struct IndexBulkDeleteResult +{ + BlockNumber num_pages; /* pages remaining in index */ + double tuples_removed; /* # removed by bulk-delete operation */ + double num_index_tuples; /* # remaining */ +} IndexBulkDeleteResult; + +/* Typedef for callback function to determine if a tuple is bulk-deletable */ +typedef bool (*IndexBulkDeleteCallback) (ItemPointer itemptr, void *state); + + /* ---------------- - * generalized index_ interface routines + * generalized index_ interface routines (in indexam.c) * ---------------- */ extern Relation index_open(Oid relationId); @@ -29,7 +42,6 @@ extern InsertIndexResult index_insert(Relation relation, Datum *datum, char *nulls, ItemPointer heap_t_ctid, Relation heapRel); -extern void index_delete(Relation relation, ItemPointer indexItem); extern IndexScanDesc index_beginscan(Relation relation, bool scanFromEnd, uint16 numberOfKeys, ScanKey key); extern void index_rescan(IndexScanDesc scan, bool scanFromEnd, ScanKey key); @@ -38,6 +50,9 @@ extern void index_markpos(IndexScanDesc scan); extern void index_restrpos(IndexScanDesc scan); extern RetrieveIndexResult index_getnext(IndexScanDesc scan, ScanDirection direction); +extern IndexBulkDeleteResult *index_bulk_delete(Relation relation, + IndexBulkDeleteCallback callback, + void *callback_state); extern RegProcedure index_cost_estimator(Relation relation); extern RegProcedure index_getprocid(Relation irel, AttrNumber attnum, uint16 procnum); |