diff options
Diffstat (limited to 'src/backend/commands/vacuum.c')
| -rw-r--r-- | src/backend/commands/vacuum.c | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c index 47d5d2fb47..882f5ca106 100644 --- a/src/backend/commands/vacuum.c +++ b/src/backend/commands/vacuum.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.62 1998/02/25 23:40:32 vadim Exp $ + * $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.63 1998/02/26 04:31:03 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -54,9 +54,9 @@ #include <sys/resource.h> #endif -/* #include <port-protos.h> */ /* Why? */ + /* #include <port-protos.h> *//* Why? */ -extern int BlowawayRelationBuffers(Relation rdesc, BlockNumber block); +extern int BlowawayRelationBuffers(Relation rdesc, BlockNumber block); bool VacuumRunning = false; @@ -136,7 +136,7 @@ vacuum(char *vacrel, bool verbose, bool analyze, List *va_spec) old = MemoryContextSwitchTo((MemoryContext) pmem); if (va_spec != NIL && !analyze) - elog(ERROR,"Can't vacuum columns, only tables. You can 'vacuum analyze' columns."); + elog(ERROR, "Can't vacuum columns, only tables. You can 'vacuum analyze' columns."); foreach(le, va_spec) { @@ -725,8 +725,9 @@ vc_scanheap(VRelStats *vacrelstats, Relation onerel, } else if (!TransactionIdIsInProgress(htup->t_xmin)) { + /* - * Not Aborted, Not Committed, Not in Progress - + * Not Aborted, Not Committed, Not in Progress - * so it's from crashed process. - vadim 11/26/96 */ ncrash++; @@ -741,11 +742,11 @@ vc_scanheap(VRelStats *vacrelstats, Relation onerel, } } - /* - * here we are concerned about tuples with xmin committed - * and xmax unknown or committed + /* + * here we are concerned about tuples with xmin committed and + * xmax unknown or committed */ - if (htup->t_infomask & HEAP_XMIN_COMMITTED && + if (htup->t_infomask & HEAP_XMIN_COMMITTED && !(htup->t_infomask & HEAP_XMAX_INVALID)) { if (htup->t_infomask & HEAP_XMAX_COMMITTED) @@ -759,6 +760,7 @@ vc_scanheap(VRelStats *vacrelstats, Relation onerel, tupgone = true; else if (!TransactionIdIsInProgress(htup->t_xmax)) { + /* * Not Aborted, Not Committed, Not in Progress - so it * from crashed process. - vadim 06/02/97 @@ -916,7 +918,7 @@ Tup %u: Vac %u, Crash %u, UnUsed %u, MinLen %u, MaxLen %u; Re-using: Free/Avail. ru1.ru_stime.tv_sec - ru0.ru_stime.tv_sec, ru1.ru_utime.tv_sec - ru0.ru_utime.tv_sec); -} /* vc_scanheap */ +} /* vc_scanheap */ /* @@ -1087,15 +1089,15 @@ vc_rpfheap(VRelStats *vacrelstats, Relation onerel, * But we can't remove last page - this is our * "show-stopper" !!! - vadim 02/25/98 */ - if (ToVpd != Fvplast && + if (ToVpd != Fvplast && !vc_enough_space(ToVpd, vacrelstats->min_tlen)) { Assert(Fnpages > ToVpI + 1); memmove(Fvpl->vpl_pgdesc + ToVpI, Fvpl->vpl_pgdesc + ToVpI + 1, - sizeof(VPageDescr *) * (Fnpages - ToVpI - 1)); + sizeof(VPageDescr *) * (Fnpages - ToVpI - 1)); Fnpages--; - Assert (Fvplast == Fvpl->vpl_pgdesc[Fnpages - 1]); + Assert(Fvplast == Fvpl->vpl_pgdesc[Fnpages - 1]); } } for (i = 0; i < Fnpages; i++) @@ -1333,7 +1335,7 @@ Elapsed %u/%u sec.", { i = BlowawayRelationBuffers(onerel, blkno); if (i < 0) - elog (FATAL, "VACUUM (vc_rpfheap): BlowawayRelationBuffers returned %d", i); + elog(FATAL, "VACUUM (vc_rpfheap): BlowawayRelationBuffers returned %d", i); blkno = smgrtruncate(DEFAULT_SMGR, onerel, blkno); Assert(blkno >= 0); vacrelstats->npages = blkno; /* set new number of blocks */ @@ -1349,7 +1351,7 @@ Elapsed %u/%u sec.", pfree(vpc); -} /* vc_rpfheap */ +} /* vc_rpfheap */ /* * vc_vacheap() -- free dead tuples @@ -1367,7 +1369,7 @@ vc_vacheap(VRelStats *vacrelstats, Relation onerel, VPageList Vvpl) int i; nblocks = Vvpl->vpl_npages; - nblocks -= Vvpl->vpl_nemend; /* nothing to do with them */ + nblocks -= Vvpl->vpl_nemend;/* nothing to do with them */ for (i = 0, vpp = Vvpl->vpl_pgdesc; i < nblocks; i++, vpp++) { @@ -1394,17 +1396,17 @@ vc_vacheap(VRelStats *vacrelstats, Relation onerel, VPageList Vvpl) * it) before truncation */ FlushBufferPool(!TransactionFlushEnabled()); - + i = BlowawayRelationBuffers(onerel, nblocks); if (i < 0) - elog (FATAL, "VACUUM (vc_vacheap): BlowawayRelationBuffers returned %d", i); + elog(FATAL, "VACUUM (vc_vacheap): BlowawayRelationBuffers returned %d", i); nblocks = smgrtruncate(DEFAULT_SMGR, onerel, nblocks); Assert(nblocks >= 0); vacrelstats->npages = nblocks; /* set new number of blocks */ } -} /* vc_vacheap */ +} /* vc_vacheap */ /* * vc_vacpage() -- free dead tuples on a page @@ -1424,7 +1426,7 @@ vc_vacpage(Page page, VPageDescr vpd) } PageRepairFragmentation(page); -} /* vc_vacpage */ +} /* vc_vacpage */ /* * _vc_scanoneind() -- scan one index relation to update statistic. @@ -1470,7 +1472,7 @@ vc_scanoneind(Relation indrel, int nhtups) elog(NOTICE, "Ind %s: NUMBER OF INDEX' TUPLES (%u) IS NOT THE SAME AS HEAP' (%u)", indrel->rd_rel->relname.data, nitups, nhtups); -} /* vc_scanoneind */ +} /* vc_scanoneind */ /* * vc_vaconeind() -- vacuum one index relation. @@ -1553,7 +1555,7 @@ vc_vaconeind(VPageList vpl, Relation indrel, int nhtups) elog(NOTICE, "Ind %s: NUMBER OF INDEX' TUPLES (%u) IS NOT THE SAME AS HEAP' (%u)", indrel->rd_rel->relname.data, nitups, nhtups); -} /* vc_vaconeind */ +} /* vc_vaconeind */ /* * vc_tidreapped() -- is a particular tid reapped? @@ -1597,7 +1599,7 @@ vc_tidreapped(ItemPointer itemptr, VPageList vpl) return (vp); -} /* vc_tidreapped */ +} /* vc_tidreapped */ /* * vc_attrstats() -- compute column statistics used by the optimzer @@ -2011,7 +2013,7 @@ vc_reappage(VPageList vpl, VPageDescr vpc) /* insert this page into vpl list */ vc_vpinsert(vpl, newvpd); -} /* vc_reappage */ +} /* vc_reappage */ static void vc_vpinsert(VPageList vpl, VPageDescr vpnew) @@ -2101,7 +2103,7 @@ vc_find_eq(char *bot, int nelem, int size, char *elm, int (*compar) (char *, cha first_move = true; } -} /* vc_find_eq */ +} /* vc_find_eq */ static int vc_cmp_blk(char *left, char *right) @@ -2118,7 +2120,7 @@ vc_cmp_blk(char *left, char *right) return (0); return (1); -} /* vc_cmp_blk */ +} /* vc_cmp_blk */ static int vc_cmp_offno(char *left, char *right) @@ -2130,7 +2132,7 @@ vc_cmp_offno(char *left, char *right) return (0); return (1); -} /* vc_cmp_offno */ +} /* vc_cmp_offno */ static void @@ -2207,7 +2209,7 @@ vc_getindices(Oid relid, int *nindices, Relation **Irel) *Irel = (Relation *) NULL; } -} /* vc_getindices */ +} /* vc_getindices */ static void @@ -2223,7 +2225,7 @@ vc_clsindices(int nindices, Relation *Irel) } pfree(Irel); -} /* vc_clsindices */ +} /* vc_clsindices */ static void @@ -2262,7 +2264,7 @@ vc_mkindesc(Relation onerel, int nindices, Relation *Irel, IndDesc **Idesc) idcur->natts = natts; } -} /* vc_mkindesc */ +} /* vc_mkindesc */ static bool @@ -2283,4 +2285,4 @@ vc_enough_space(VPageDescr vpd, Size len) return (false); -} /* vc_enough_space */ +} /* vc_enough_space */ |
