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| author | Teodor Sigaev <teodor@sigaev.ru> | 2008-10-17 17:02:42 +0000 |
|---|---|---|
| committer | Teodor Sigaev <teodor@sigaev.ru> | 2008-10-17 17:02:42 +0000 |
| commit | 2cae6fe7179c49197f22dec7292095764c4e9eaa (patch) | |
| tree | c5b7c12497955a97d721ea2e0935941634bd9fd2 /src/backend/access/gist/gistget.c | |
| parent | 6a6f47d00a7505e1b5d562321386253133e05367 (diff) | |
| download | postgresql-2cae6fe7179c49197f22dec7292095764c4e9eaa.tar.gz postgresql-2cae6fe7179c49197f22dec7292095764c4e9eaa.zip | |
During repeated rescan of GiST index it's possible that scan key
is NULL but SK_SEARCHNULL is not set. Add checking IS NULL of keys
to set during key initialization. If key is NULL and SK_SEARCHNULL is not
set then nothnig can be satisfied.
With assert-enabled compilation that causes coredump.
Bug was introduced in 8.3 by support of IS NULL index scan.
Diffstat (limited to 'src/backend/access/gist/gistget.c')
| -rw-r--r-- | src/backend/access/gist/gistget.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/backend/access/gist/gistget.c b/src/backend/access/gist/gistget.c index 9a9927ca05f..20bc99482dd 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 - * $PostgreSQL: pgsql/src/backend/access/gist/gistget.c,v 1.69.2.1 2008/08/23 10:40:03 teodor Exp $ + * $PostgreSQL: pgsql/src/backend/access/gist/gistget.c,v 1.69.2.2 2008/10/17 17:02:42 teodor Exp $ * *------------------------------------------------------------------------- */ @@ -127,6 +127,9 @@ gistnext(IndexScanDesc scan, ScanDirection dir, ItemPointer tids, so = (GISTScanOpaque) scan->opaque; + if ( so->qual_ok == false ) + return 0; + if (ItemPointerIsValid(&so->curpos) == false) { /* Being asked to fetch the first entry, so start at the root */ |