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| author | Jeff Davis <jdavis@postgresql.org> | 2025-03-24 22:05:41 -0700 |
|---|---|---|
| committer | Jeff Davis <jdavis@postgresql.org> | 2025-03-24 22:05:41 -0700 |
| commit | 4d143509cbfae0207c35abffae7b0e3b4d078349 (patch) | |
| tree | 2fe52bb9969a920cc388f3c29297c20a358a456c /src/backend/executor/execGrouping.c | |
| parent | cc721c459d3783bbdb4beb1bbfa802a5328d15a2 (diff) | |
| download | postgresql-4d143509cbfae0207c35abffae7b0e3b4d078349.tar.gz postgresql-4d143509cbfae0207c35abffae7b0e3b4d078349.zip | |
Create accessor functions for TupleHashEntry.
Refactor for upcoming optimizations.
Reviewed-by: David Rowley <dgrowleyml@gmail.com>
Discussion: https://postgr.es/m/1cc3b400a0e8eead18ff967436fa9e42c0c14cfb.camel@j-davis.com
Diffstat (limited to 'src/backend/executor/execGrouping.c')
| -rw-r--r-- | src/backend/executor/execGrouping.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/backend/executor/execGrouping.c b/src/backend/executor/execGrouping.c index 33b124fbb0a..a9d212aaec6 100644 --- a/src/backend/executor/execGrouping.c +++ b/src/backend/executor/execGrouping.c @@ -174,13 +174,15 @@ BuildTupleHashTable(PlanState *parent, bool use_variable_hash_iv) { TupleHashTable hashtable; - Size entrysize = sizeof(TupleHashEntryData) + additionalsize; + Size entrysize; Size hash_mem_limit; MemoryContext oldcontext; bool allow_jit; uint32 hash_iv = 0; Assert(nbuckets > 0); + additionalsize = MAXALIGN(additionalsize); + entrysize = sizeof(TupleHashEntryData) + additionalsize; /* Limit initial table size request to not more than hash_mem */ hash_mem_limit = get_hash_memory_limit() / entrysize; @@ -196,6 +198,7 @@ BuildTupleHashTable(PlanState *parent, hashtable->tab_collations = collations; hashtable->tablecxt = tablecxt; hashtable->tempcxt = tempcxt; + hashtable->additionalsize = additionalsize; hashtable->tableslot = NULL; /* will be made on first lookup */ hashtable->inputslot = NULL; hashtable->in_hash_expr = NULL; @@ -479,11 +482,14 @@ LookupTupleHashEntry_internal(TupleHashTable hashtable, TupleTableSlot *slot, { /* created new entry */ *isnew = true; - /* zero caller data */ - entry->additional = NULL; + MemoryContextSwitchTo(hashtable->tablecxt); - /* Copy the first tuple into the table context */ + entry->firstTuple = ExecCopySlotMinimalTuple(slot); + if (hashtable->additionalsize > 0) + entry->additional = palloc0(hashtable->additionalsize); + else + entry->additional = NULL; } } else |