diff options
Diffstat (limited to 'src/backend/executor/nodeIndexscan.c')
| -rw-r--r-- | src/backend/executor/nodeIndexscan.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/backend/executor/nodeIndexscan.c b/src/backend/executor/nodeIndexscan.c index 59f54ee5cb4..7b6e3df6506 100644 --- a/src/backend/executor/nodeIndexscan.c +++ b/src/backend/executor/nodeIndexscan.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/nodeIndexscan.c,v 1.126 2008/03/18 03:54:52 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/executor/nodeIndexscan.c,v 1.127 2008/04/13 19:18:14 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -106,7 +106,7 @@ IndexNext(IndexScanState *node) /* * ok, now that we have what we need, fetch the next tuple. */ - if ((tuple = index_getnext(scandesc, direction)) != NULL) + while ((tuple = index_getnext(scandesc, direction)) != NULL) { /* * Store the scanned tuple in the scan tuple slot of the scan state. @@ -118,6 +118,18 @@ IndexNext(IndexScanState *node) scandesc->xs_cbuf, /* buffer containing tuple */ false); /* don't pfree */ + /* + * If the index was lossy, we have to recheck the index quals using + * the real tuple. + */ + if (scandesc->xs_recheck) + { + econtext->ecxt_scantuple = slot; + ResetExprContext(econtext); + if (!ExecQual(node->indexqualorig, econtext, false)) + continue; /* nope, so ask index for another one */ + } + return slot; } |