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ExecInitAgg: update aggstate->numaggs and ->numtrans earlier.

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Functions hash_agg_entry_size() and build_hash_tables() make use of
those values for memory size estimates.

Because this change only affects memory estimates, don't backpatch.

Discussion: https://postgr.es/m/7530bd8783b1a78d53a3c70383e38d8da0a5ffe5.camel%40j-davis.com
This commit is contained in:
Jeff Davis 2025-01-07 15:13:50 -08:00
parent 32ddfaffd1
commit 3f482940db
1 changed files with 2 additions and 9 deletions
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11
src/backend/executor/nodeAgg.c
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@ -3379,8 +3379,8 @@ ExecInitAgg(Agg *node, EState *estate, int eflags)
max_aggno = Max(max_aggno, aggref->aggno);
max_transno = Max(max_transno, aggref->aggtransno);
}
numaggs = max_aggno + 1;
numtrans = max_transno + 1;
aggstate->numaggs = numaggs = max_aggno + 1;
aggstate->numtrans = numtrans = max_transno + 1;
/*
* For each phase, prepare grouping set data and fmgr lookup data for
@ -3943,13 +3943,6 @@ ExecInitAgg(Agg *node, EState *estate, int eflags)
ReleaseSysCache(aggTuple);
}
/*
* Update aggstate->numaggs to be the number of unique aggregates found.
* Also set numstates to the number of unique transition states found.
*/
aggstate->numaggs = numaggs;
aggstate->numtrans = numtrans;
/*
* Last, check whether any more aggregates got added onto the node while
* we processed the expressions for the aggregate arguments (including not