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The shortcut exit that I recently added to ExecInitIndexScan() for 

EXPLAIN-only operation was a little too short; it skipped initializing the
node's result tuple type, which may be needed depending on what's above the
indexscan node.  Call ExecAssignResultTypeFromTL before exiting.  (For good
luck I moved up the ExecAssignScanProjectionInfo call as well, so that
everything except indexscan-specific initialization will still be done.)
Per example from Grant Finnemore.
This commit is contained in:
Tom Lane 2007-05-31 20:45:26 +00:00
parent 10f719af33
commit cc3e9deee6
1 changed files with 7 additions and 7 deletions
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14
src/backend/executor/nodeIndexscan.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeIndexscan.c,v 1.122 2007/05/25 17:54:25 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeIndexscan.c,v 1.123 2007/05/31 20:45:26 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -522,6 +522,12 @@ ExecInitIndexScan(IndexScan *node, EState *estate, int eflags)
*/
ExecAssignScanType(&indexstate->ss, RelationGetDescr(currentRelation));
/*
* Initialize result tuple type and projection info.
*/
ExecAssignResultTypeFromTL(&indexstate->ss.ps);
ExecAssignScanProjectionInfo(&indexstate->ss);
/*
* If we are just doing EXPLAIN (ie, aren't going to run the plan),
* stop here. This allows an index-advisor plugin to EXPLAIN a plan
@ -589,12 +595,6 @@ ExecInitIndexScan(IndexScan *node, EState *estate, int eflags)
indexstate->iss_NumScanKeys,
indexstate->iss_ScanKeys);
/*
* Initialize result tuple type and projection info.
*/
ExecAssignResultTypeFromTL(&indexstate->ss.ps);
ExecAssignScanProjectionInfo(&indexstate->ss);
/*
* all done.
*/