On Thu, Jan 2, 2025 at 7:24 AM David Rowley <[email protected]> wrote: > > Bump wouldn't work due to the SH_FREE() in SH_GROW() when resizing the > table. If sizeof(TupleHashEntryData) were a power-of-two, then there'd > be no wastage as the hash table always has a power-of-two bucket count > and two powers-of-two multiplied are always a power-of-two value. > Unfortunately, TupleHashEntryData is 24 bytes and I don't see any easy > way to shrink it to 16 bytes.
FYI, there is a proposal for that at https://www.postgresql.org/message-id/[email protected] -- John Naylor Amazon Web Services
