diff options
Diffstat (limited to 'src/backend/commands/vacuumlazy.c')
| -rw-r--r-- | src/backend/commands/vacuumlazy.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/src/backend/commands/vacuumlazy.c b/src/backend/commands/vacuumlazy.c index c839b951d9..c89dc20404 100644 --- a/src/backend/commands/vacuumlazy.c +++ b/src/backend/commands/vacuumlazy.c @@ -36,7 +36,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/vacuumlazy.c,v 1.79 2006/09/21 20:31:22 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/commands/vacuumlazy.c,v 1.80 2006/10/04 00:29:52 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -90,7 +90,7 @@ typedef struct LVRelStats int num_free_pages; /* current # of entries */ int max_free_pages; /* # slots allocated in array */ PageFreeSpaceInfo *free_pages; /* array or heap of blkno/avail */ - BlockNumber tot_free_pages; /* total pages with >= threshold space */ + BlockNumber tot_free_pages; /* total pages with >= threshold space */ } LVRelStats; @@ -103,15 +103,15 @@ static void lazy_scan_heap(Relation onerel, LVRelStats *vacrelstats, TransactionId OldestXmin); static void lazy_vacuum_heap(Relation onerel, LVRelStats *vacrelstats); static void lazy_vacuum_index(Relation indrel, - IndexBulkDeleteResult **stats, - LVRelStats *vacrelstats); + IndexBulkDeleteResult **stats, + LVRelStats *vacrelstats); static void lazy_cleanup_index(Relation indrel, - IndexBulkDeleteResult *stats, - LVRelStats *vacrelstats); + IndexBulkDeleteResult *stats, + LVRelStats *vacrelstats); static int lazy_vacuum_page(Relation onerel, BlockNumber blkno, Buffer buffer, int tupindex, LVRelStats *vacrelstats); static void lazy_truncate_heap(Relation onerel, LVRelStats *vacrelstats, - TransactionId OldestXmin); + TransactionId OldestXmin); static BlockNumber count_nondeletable_pages(Relation onerel, LVRelStats *vacrelstats, TransactionId OldestXmin); static void lazy_space_alloc(LVRelStats *vacrelstats, BlockNumber relblocks); @@ -143,7 +143,7 @@ lazy_vacuum_rel(Relation onerel, VacuumStmt *vacstmt) int nindexes; BlockNumber possibly_freeable; TransactionId OldestXmin, - FreezeLimit; + FreezeLimit; if (vacstmt->verbose) elevel = INFO; @@ -160,8 +160,8 @@ lazy_vacuum_rel(Relation onerel, VacuumStmt *vacstmt) vacrelstats->threshold = GetAvgFSMRequestSize(&onerel->rd_node); /* - * Set initial minimum Xid, which will be updated if a smaller Xid is found - * in the relation by lazy_scan_heap. + * Set initial minimum Xid, which will be updated if a smaller Xid is + * found in the relation by lazy_scan_heap. * * We use RecentXmin here (the minimum Xid that belongs to a transaction * that is still open according to our snapshot), because it is the @@ -440,7 +440,7 @@ lazy_scan_heap(Relation onerel, LVRelStats *vacrelstats, num_tuples += 1; hastup = true; - /* + /* * If the tuple is alive, we consider it for the "minxid" * calculations. */ @@ -472,8 +472,8 @@ lazy_scan_heap(Relation onerel, LVRelStats *vacrelstats, * If we remembered any tuples for deletion, then the page will be * visited again by lazy_vacuum_heap, which will compute and record * its post-compaction free space. If not, then we're done with this - * page, so remember its free space as-is. (This path will always - * be taken if there are no indexes.) + * page, so remember its free space as-is. (This path will always be + * taken if there are no indexes.) */ if (vacrelstats->num_dead_tuples == prev_dead_count) { @@ -803,11 +803,12 @@ lazy_truncate_heap(Relation onerel, LVRelStats *vacrelstats, } } vacrelstats->num_free_pages = j; + /* * If tot_free_pages was more than num_free_pages, we can't tell for sure * what its correct value is now, because we don't know which of the - * forgotten pages are getting truncated. Conservatively set it equal - * to num_free_pages. + * forgotten pages are getting truncated. Conservatively set it equal to + * num_free_pages. */ vacrelstats->tot_free_pages = j; |