pgsql/src backend/access/common/heaptuple.c ba ...

CVSROOT: /cvsroot
Module name: pgsql
Changes by: tgl(at)postgresql(dot)org 02/05/27 15:53:33

Modified files:
src/backend/access/common: heaptuple.c
src/backend/access/heap: tuptoaster.c
src/include/access: htup.h

Log message:
Distinguish between MaxHeapAttributeNumber and MaxTupleAttributeNumber,
where the latter is made slightly larger to allow for in-memory tuples
containing resjunk attributes. Responds to today's complaint that one
cannot UPDATE a table containing the allegedly-legal maximum number of
columns.

Also, apply Manfred Koizar's recent patch to avoid extra alignment padding
when there is a null bitmap. This saves bytes in some cases while not
creating any backward-compatibility problem AFAICS.