diff options
Diffstat (limited to 'src/backend/access/heap/heapam.c')
| -rw-r--r-- | src/backend/access/heap/heapam.c | 41 |
1 files changed, 22 insertions, 19 deletions
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c index bb98e2800cc..3b66dd57b22 100644 --- a/src/backend/access/heap/heapam.c +++ b/src/backend/access/heap/heapam.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.34 1998/09/01 03:21:05 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.35 1998/09/01 04:26:51 momjian Exp $ * * * INTERFACE ROUTINES @@ -109,10 +109,10 @@ static bool ImmediateInvalidation; */ static void initscan(HeapScanDesc scan, - Relation relation, - int atend, - unsigned nkeys, - ScanKey key) + Relation relation, + int atend, + unsigned nkeys, + ScanKey key) { if (!RelationGetNumberOfBlocks(relation)) { @@ -258,7 +258,7 @@ heapgettup(Relation relation, elog(DEBUG, "heapgettup: relation(%c)=`%s', %p", relation->rd_rel->relkind, &relation->rd_rel->relname, snapshot); -#endif /* !defined(HEAPDEBUGALL) */ +#endif /* !defined(HEAPDEBUGALL) */ if (!ItemPointerIsValid(tid)) Assert(!PointerIsValid(tid)); @@ -283,12 +283,12 @@ heapgettup(Relation relation, /* assume it is a valid TID XXX */ if (ItemPointerIsValid(tid) == false) { - *buf= InvalidBuffer; + *buf = InvalidBuffer; return NULL; } *buf = RelationGetBufferWithBuffer(relation, - ItemPointerGetBlockNumber(tid), - *buf); + ItemPointerGetBlockNumber(tid), + *buf); #ifndef NO_BUFFERISVALID if (!BufferIsValid(*buf)) @@ -414,6 +414,7 @@ heapgettup(Relation relation, if (ItemPointerGetBlockNumber(iptr) != page) { + /* * set block id to the correct page number --- this is * a hack to support the virtual fragment concept @@ -762,7 +763,7 @@ elog(DEBUG, "heap_getnext([%s,nkeys=%d],backw=%d) called", \ #define HEAPDEBUG_5 #define HEAPDEBUG_6 #define HEAPDEBUG_7 -#endif /* !defined(HEAPDEBUGALL) */ +#endif /* !defined(HEAPDEBUGALL) */ HeapTuple @@ -990,7 +991,7 @@ heap_getnext(HeapScanDesc scandesc, int backw) * value, and they are required to BuffferRelease() it when they * are done. If they want to make a copy of it before releasing it, * they can call heap_copytyple(). - + * ---------------- */ HeapTuple @@ -1005,8 +1006,8 @@ heap_fetch(Relation relation, HeapTuple tuple; OffsetNumber offnum; - AssertMacro(PointerIsValid(userbuf)); /* see comments above */ - + AssertMacro(PointerIsValid(userbuf)); /* see comments above */ + /* ---------------- * increment access statistics * ---------------- @@ -1074,7 +1075,8 @@ heap_fetch(Relation relation, * ---------------- */ - *userbuf = buffer; /* user is required to ReleaseBuffer() this */ + *userbuf = buffer; /* user is required to ReleaseBuffer() + * this */ return tuple; } @@ -1193,7 +1195,7 @@ heap_delete(Relation relation, ItemPointer tid) { /* XXX L_SH better ??? */ elog(ERROR, "heap_delete: failed ReadBuffer"); } -#endif /* NO_BUFFERISVALID */ +#endif /* NO_BUFFERISVALID */ dp = (PageHeader) BufferGetPage(buf); lp = PageGetItemId(dp, ItemPointerGetOffsetNumber(tid)); @@ -1206,10 +1208,11 @@ heap_delete(Relation relation, ItemPointer tid) Assert(HeapTupleIsValid(tp)); if (TupleUpdatedByCurXactAndCmd(tp)) { + /* - Vadim says this is no longer needed 1998/6/15 - elog(NOTICE, "Non-functional delete, tuple already deleted"); - */ + * Vadim says this is no longer needed 1998/6/15 elog(NOTICE, + * "Non-functional delete, tuple already deleted"); + */ if (IsSystemRelationName(RelationGetRelationName(relation)->data)) RelationUnsetLockForWrite(relation); ReleaseBuffer(buf); @@ -1309,7 +1312,7 @@ heap_replace(Relation relation, ItemPointer otid, HeapTuple replace_tuple) /* XXX L_SH better ??? */ elog(ERROR, "amreplace: failed ReadBuffer"); } -#endif /* NO_BUFFERISVALID */ +#endif /* NO_BUFFERISVALID */ dp = (Page) BufferGetPage(buffer); lp = PageGetItemId(dp, ItemPointerGetOffsetNumber(otid)); |