TupleHashTable: store additional data along with tuple. Previously, the caller needed to allocate the memory and the TupleHashTable would store a pointer to it. That wastes space for the palloc overhead as well as the size of the pointer itself.
Now, the TupleHashTable relies on the caller to correctly specify the additionalsize, and allocates that amount of space. The caller can then request a pointer into that space. Discussion: https://postgr.es/m/b9cbf0219a9859dc8d240311643ff4362fd9602c.ca...@j-davis.com Reviewed-by: Heikki Linnakangas Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/e0ece2a981ee9068f50c4423e303836c2585eb02 Modified Files -------------- src/backend/executor/execGrouping.c | 57 +++++++++++++++++++++++++++++++++++-- src/backend/executor/nodeAgg.c | 20 ++++++------- src/backend/executor/nodeSetOp.c | 17 +++++------ src/backend/executor/nodeSubplan.c | 2 +- src/include/executor/executor.h | 3 ++ src/include/nodes/execnodes.h | 10 ++----- 6 files changed, 78 insertions(+), 31 deletions(-)
