in upper Executor memory context.

+ BlowawayRelationBuffers(relation, blocknumber)

	where x <> 1 or x isnull
didn't return tuples with x NULL.

Add integer/money arithmetic.

Fix up tabbing of most function declarations.

Place single-ticks around bad argument in elog messages.
Fix tabbing of large lookup tables (ugh).

Allow ALTER TABLE ADD ( column ) syntax.

        * (src/backend/Makefile): Use `ln', not `cd;ln' so that installers
        can wrap ln.