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| author | Jeff Davis <jdavis@postgresql.org> | 2020-02-06 11:49:56 -0800 |
|---|---|---|
| committer | Jeff Davis <jdavis@postgresql.org> | 2020-02-06 11:49:56 -0800 |
| commit | 7d4395d0a11589aa450a073d658c49b420f4493f (patch) | |
| tree | b9be6165922e73d2351d8565f9051184ae56f036 /src/backend/utils/adt/selfuncs.c | |
| parent | c02fdc9223015c5c386abfa00c47fc7f4c845161 (diff) | |
| download | postgresql-7d4395d0a11589aa450a073d658c49b420f4493f.tar.gz postgresql-7d4395d0a11589aa450a073d658c49b420f4493f.zip | |
Refactor hash_agg_entry_size().
Consolidate the calculations for hash table size estimation. This will
help with upcoming Hash Aggregation work that will add additional call
sites.
Diffstat (limited to 'src/backend/utils/adt/selfuncs.c')
| -rw-r--r-- | src/backend/utils/adt/selfuncs.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c index 7c6f0574b37..0be26fe0378 100644 --- a/src/backend/utils/adt/selfuncs.c +++ b/src/backend/utils/adt/selfuncs.c @@ -3526,16 +3526,8 @@ double estimate_hashagg_tablesize(Path *path, const AggClauseCosts *agg_costs, double dNumGroups) { - Size hashentrysize; - - /* Estimate per-hash-entry space at tuple width... */ - hashentrysize = MAXALIGN(path->pathtarget->width) + - MAXALIGN(SizeofMinimalTupleHeader); - - /* plus space for pass-by-ref transition values... */ - hashentrysize += agg_costs->transitionSpace; - /* plus the per-hash-entry overhead */ - hashentrysize += hash_agg_entry_size(agg_costs->numAggs); + Size hashentrysize = hash_agg_entry_size( + agg_costs->numAggs, path->pathtarget->width, agg_costs->transitionSpace); /* * Note that this disregards the effect of fill-factor and growth policy |