diff options
| author | Teodor Sigaev <teodor@sigaev.ru> | 2005-08-30 08:48:16 +0000 |
|---|---|---|
| committer | Teodor Sigaev <teodor@sigaev.ru> | 2005-08-30 08:48:16 +0000 |
| commit | ba5f900b3d22ca0dfab923abaab4b331595c96b3 (patch) | |
| tree | 023b7453c0f3d3acc98d1b2771a238f0665ac95d /src/backend/access/gist/gistget.c | |
| parent | 26f1202ca318459753a39b2ced5cb6ea9cd8ab8d (diff) | |
Fix missing rows in query
update a=.. where a... with GiST index on column 'a'
Backpatch from 8.0 branch
Diffstat (limited to 'src/backend/access/gist/gistget.c')
| -rw-r--r-- | src/backend/access/gist/gistget.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/backend/access/gist/gistget.c b/src/backend/access/gist/gistget.c index 2f5801fe781..b10228f18e5 100644 --- a/src/backend/access/gist/gistget.c +++ b/src/backend/access/gist/gistget.c @@ -8,7 +8,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/access/gist/gistget.c,v 1.35 2002/09/04 20:31:09 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/access/gist/gistget.c,v 1.35.2.1 2005/08/30 08:48:16 teodor Exp $ * *------------------------------------------------------------------------- */ @@ -167,10 +167,18 @@ gistnext(IndexScanDesc s, ScanDirection dir) maxoff = PageGetMaxOffsetNumber(p); po = (GISTPageOpaque) PageGetSpecialPointer(p); - if (ScanDirectionIsBackward(dir)) - n = OffsetNumberPrev(stk->gs_child); - else - n = OffsetNumberNext(stk->gs_child); + if ( stk->gs_child == InvalidOffsetNumber ) { + /* rescan page */ + if (ScanDirectionIsBackward(dir)) + n = PageGetMaxOffsetNumber(p); + else + n = FirstOffsetNumber; + } else { + if (ScanDirectionIsBackward(dir)) + n = OffsetNumberPrev(stk->gs_child); + else + n = OffsetNumberNext(stk->gs_child); + } so->s_stack = stk->gs_parent; pfree(stk); |