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postgresql/src/include/executor
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Tom Lane 969f9d0b4b Make EXPLAIN report maximum hashtable usage across multiple rescans. 
Before discarding the old hash table in ExecReScanHashJoin, capture
its statistics, ensuring that we report the maximum hashtable size
across repeated rescans of the hash input relation.  We can repurpose
the existing code for reporting hashtable size in parallel workers
to help with this, making the patch pretty small.  This also ensures
that if rescans happen within parallel workers, we get the correct
maximums across all instances.

Konstantin Knizhnik and Tom Lane, per diagnosis by Thomas Munro
of a trouble report from Alvaro Herrera.

Discussion: https://postgr.es/m/20200323165059.GA24950@alvherre.pgsql
2020-04-11 12:39:19 -04:00
..
execdebug.h Implement Incremental Sort 2020-04-06 21:35:10 +02:00
execdesc.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
execExpr.h Extend ExecBuildAggTrans() to support a NULL pointer check. 2020-03-04 17:29:18 -08:00
execParallel.h Add infrastructure to track WAL usage. 2020-04-04 10:02:08 +05:30
execPartition.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
executor.h Create memory context for HashAgg with a reasonable maxBlockSize. 2020-04-07 21:25:28 -07:00
functions.h Improve the handling of result type coercions in SQL functions. 2020-01-08 11:07:59 -05:00
hashjoin.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
instrument.h Add infrastructure to track WAL usage. 2020-04-04 10:02:08 +05:30
nodeAgg.h Include chunk overhead in hash table entry size estimate. 2020-04-03 20:07:58 -07:00
nodeAppend.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeBitmapAnd.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeBitmapHeapscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeBitmapIndexscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeBitmapOr.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeCtescan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeCustom.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeForeignscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeFunctionscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeGather.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeGatherMerge.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeGroup.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeHash.h Make EXPLAIN report maximum hashtable usage across multiple rescans. 2020-04-11 12:39:19 -04:00
nodeHashjoin.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeIncrementalSort.h Implement Incremental Sort 2020-04-06 21:35:10 +02:00
nodeIndexonlyscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeIndexscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeLimit.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeLockRows.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeMaterial.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeMergeAppend.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeMergejoin.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeModifyTable.h Optimize update of tables with generated columns 2020-02-17 15:20:58 +01:00
nodeNamedtuplestorescan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeNestloop.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeProjectSet.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeRecursiveunion.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeResult.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeSamplescan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeSeqscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeSetOp.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeSort.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeSubplan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeSubqueryscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeTableFuncscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeTidscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeUnique.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeValuesscan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeWindowAgg.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
nodeWorktablescan.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
spi.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
spi_priv.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
tablefunc.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
tqueue.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
tstoreReceiver.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
tuptable.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00