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| author | Robert Haas <rhaas@postgresql.org> | 2017-02-19 15:53:59 +0530 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2017-02-19 15:57:55 +0530 |
| commit | 0414b26bac09379a4cbf1fbd847d1cee2293c5e4 (patch) | |
| tree | 16554f77178d068e27bd53c2404a6f8468c90746 /src/backend/executor/execParallel.c | |
| parent | 16be2fd100199bdf284becfcee02c5eb20d8a11d (diff) | |
| download | postgresql-0414b26bac09379a4cbf1fbd847d1cee2293c5e4.tar.gz postgresql-0414b26bac09379a4cbf1fbd847d1cee2293c5e4.zip | |
Add optimizer and executor support for parallel index-only scans.
Commit 5262f7a4fc44f651241d2ff1fa688dd664a34874 added similar support
for parallel index scans; this extends that work to index-only scans.
As with parallel index scans, this requires support from the index AM,
so currently parallel index-only scans will only be possible for btree
indexes.
Rafia Sabih, reviewed and tested by Rahila Syed, Tushar Ahuja,
and Amit Kapila
Discussion: http://postgr.es/m/CAOGQiiPEAs4C=TBp0XShxBvnWXuzGL2u++Hm1=qnCpd6_Mf8Fw@mail.gmail.com
Diffstat (limited to 'src/backend/executor/execParallel.c')
| -rw-r--r-- | src/backend/executor/execParallel.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/backend/executor/execParallel.c b/src/backend/executor/execParallel.c index 98d4f1eca76..646df087f9f 100644 --- a/src/backend/executor/execParallel.c +++ b/src/backend/executor/execParallel.c @@ -29,6 +29,7 @@ #include "executor/nodeForeignscan.h" #include "executor/nodeSeqscan.h" #include "executor/nodeIndexscan.h" +#include "executor/nodeIndexonlyscan.h" #include "executor/tqueue.h" #include "nodes/nodeFuncs.h" #include "optimizer/planmain.h" @@ -202,6 +203,10 @@ ExecParallelEstimate(PlanState *planstate, ExecParallelEstimateContext *e) ExecIndexScanEstimate((IndexScanState *) planstate, e->pcxt); break; + case T_IndexOnlyScanState: + ExecIndexOnlyScanEstimate((IndexOnlyScanState *) planstate, + e->pcxt); + break; case T_ForeignScanState: ExecForeignScanEstimate((ForeignScanState *) planstate, e->pcxt); @@ -258,6 +263,10 @@ ExecParallelInitializeDSM(PlanState *planstate, ExecIndexScanInitializeDSM((IndexScanState *) planstate, d->pcxt); break; + case T_IndexOnlyScanState: + ExecIndexOnlyScanInitializeDSM((IndexOnlyScanState *) planstate, + d->pcxt); + break; case T_ForeignScanState: ExecForeignScanInitializeDSM((ForeignScanState *) planstate, d->pcxt); @@ -737,6 +746,9 @@ ExecParallelInitializeWorker(PlanState *planstate, shm_toc *toc) case T_IndexScanState: ExecIndexScanInitializeWorker((IndexScanState *) planstate, toc); break; + case T_IndexOnlyScanState: + ExecIndexOnlyScanInitializeWorker((IndexOnlyScanState *) planstate, toc); + break; case T_ForeignScanState: ExecForeignScanInitializeWorker((ForeignScanState *) planstate, toc); |