diff options
Diffstat (limited to 'src/include/access/genam.h')
| -rw-r--r-- | src/include/access/genam.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/src/include/access/genam.h b/src/include/access/genam.h index 6266da47c8f..59ecf1d8f4f 100644 --- a/src/include/access/genam.h +++ b/src/include/access/genam.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: genam.h,v 1.37 2002/09/04 20:31:36 momjian Exp $ + * $Id: genam.h,v 1.38 2003/02/22 00:45:05 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -20,17 +20,32 @@ #include "nodes/primnodes.h" -/* Struct for statistics returned by bulk-delete operation */ +/* + * Struct for statistics returned by bulk-delete operation + * + * This is now also passed to the index AM's vacuum-cleanup operation, + * if it has one, which can modify the results as needed. Note that + * an index AM could choose to have bulk-delete return a larger struct + * of which this is just the first field; this provides a way for bulk-delete + * to communicate additional private data to vacuum-cleanup. + */ typedef struct IndexBulkDeleteResult { BlockNumber num_pages; /* pages remaining in index */ + double num_index_tuples; /* tuples remaining */ double tuples_removed; /* # removed by bulk-delete operation */ - double num_index_tuples; /* # remaining */ + BlockNumber pages_free; /* # unused pages in index */ } IndexBulkDeleteResult; /* Typedef for callback function to determine if a tuple is bulk-deletable */ typedef bool (*IndexBulkDeleteCallback) (ItemPointer itemptr, void *state); +/* Struct for additional arguments passed to vacuum-cleanup operation */ +typedef struct IndexVacuumCleanupInfo +{ + bool vacuum_full; /* VACUUM FULL (we have exclusive lock) */ + int message_level; /* elog level for progress messages */ +} IndexVacuumCleanupInfo; /* Struct for heap-or-index scans of system tables */ typedef struct SysScanDescData @@ -72,6 +87,9 @@ extern bool index_getnext_indexitem(IndexScanDesc scan, extern IndexBulkDeleteResult *index_bulk_delete(Relation indexRelation, IndexBulkDeleteCallback callback, void *callback_state); +extern IndexBulkDeleteResult *index_vacuum_cleanup(Relation indexRelation, + IndexVacuumCleanupInfo *info, + IndexBulkDeleteResult *stats); extern RegProcedure index_cost_estimator(Relation indexRelation); extern RegProcedure index_getprocid(Relation irel, AttrNumber attnum, uint16 procnum); |