diff options
Diffstat (limited to 'src/backend/executor/nodeTidscan.c')
| -rw-r--r-- | src/backend/executor/nodeTidscan.c | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/src/backend/executor/nodeTidscan.c b/src/backend/executor/nodeTidscan.c index 36159ad4abe..7d9c6748637 100644 --- a/src/backend/executor/nodeTidscan.c +++ b/src/backend/executor/nodeTidscan.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/executor/nodeTidscan.c,v 1.4 2000/01/26 05:56:24 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/executor/nodeTidscan.c,v 1.5 2000/04/07 00:30:41 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -109,8 +109,10 @@ TidNext(TidScan *node) if (estate->es_evTupleNull[node->scan.scanrelid - 1]) return slot; /* return empty slot */ + /* probably ought to use ExecStoreTuple here... */ slot->val = estate->es_evTuple[node->scan.scanrelid - 1]; slot->ttc_shouldFree = false; + /* Flag for the next call that no more tuples */ estate->es_evTupleNull[node->scan.scanrelid - 1] = true; return (slot); @@ -255,7 +257,6 @@ ExecTidReScan(TidScan *node, ExprContext *exprCtxt, Plan *parent) { EState *estate; TidScanState *tidstate; - Plan *outerPlan; ItemPointer *tidList; tidstate = node->tidstate; @@ -263,30 +264,22 @@ ExecTidReScan(TidScan *node, ExprContext *exprCtxt, Plan *parent) tidstate->tss_TidPtr = -1; tidList = tidstate->tss_TidList; - if ((outerPlan = outerPlan((Plan *) node)) != NULL) + /* If we are being passed an outer tuple, save it for runtime key calc */ + if (exprCtxt != NULL) + node->scan.scanstate->cstate.cs_ExprContext->ecxt_outertuple = + exprCtxt->ecxt_outertuple; + + /* If this is re-scanning of PlanQual ... */ + if (estate->es_evTuple != NULL && + estate->es_evTuple[node->scan.scanrelid - 1] != NULL) { - /* we are scanning a subplan */ - outerPlan = outerPlan((Plan *) node); - ExecReScan(outerPlan, exprCtxt, parent); + estate->es_evTupleNull[node->scan.scanrelid - 1] = false; + return; } - else - /* otherwise, we are scanning a relation */ - { - /* If this is re-scanning of PlanQual ... */ - if (estate->es_evTuple != NULL && - estate->es_evTuple[node->scan.scanrelid - 1] != NULL) - { - estate->es_evTupleNull[node->scan.scanrelid - 1] = false; - return; - } - /* it's possible in subselects */ - if (exprCtxt == NULL) - exprCtxt = node->scan.scanstate->cstate.cs_ExprContext; - - node->scan.scanstate->cstate.cs_ExprContext->ecxt_outertuple = exprCtxt->ecxt_outertuple; - tidstate->tss_NumTids = TidListCreate(node->tideval, exprCtxt, tidList); - } + tidstate->tss_NumTids = TidListCreate(node->tideval, + node->scan.scanstate->cstate.cs_ExprContext, + tidList); /* ---------------- * perhaps return something meaningful |