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Fix LookupTupleHashEntryHash() pipeline-stall issue.

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Refactor hash lookups in nodeAgg.c to improve performance.

Author: Andres Freund and Jeff Davis
Discussion: https://postgr.es/m/20200612213715.op4ye4q7gktqvpuo%40alap3.anarazel.de
Backpatch-through: 13
This commit is contained in:
Jeff Davis
2020-07-26 14:55:52 -07:00
parent 56788d2156
commit 200f6100a9
6 changed files with 107 additions and 103 deletions
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src/include/executor/executor.h
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@ -139,7 +139,7 @@ extern TupleHashTable BuildTupleHashTableExt(PlanState *parent,
MemoryContext tempcxt, bool use_variable_hash_iv);
extern TupleHashEntry LookupTupleHashEntry(TupleHashTable hashtable,
TupleTableSlot *slot,
bool *isnew);
bool *isnew, uint32 *hash);
extern uint32 TupleHashTableHash(TupleHashTable hashtable,
TupleTableSlot *slot);
extern TupleHashEntry LookupTupleHashEntryHash(TupleHashTable hashtable,