memory contexts.  Currently, only leaks in expressions executed as
quals or projections are handled.  Clean up some old dead cruft in
executor while at it --- unused fields in state nodes, that sort of thing.

  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc

to all files copyright Regents of Berkeley.  Man, that's a lot of files.

a generalized module 'tuplesort.c' that can sort either HeapTuples or
IndexTuples, and is not tied to execution of a Sort node.  Clean up
memory leakages in sorting, and replace nbtsort.c's private implementation
of mergesorting with calls to tuplesort.c.

all the expected keys (it was returning uninitialized memory).

Another PGINDENT run that changes variable indenting and case label indenting.  Also static variable indenting.

Change pg_attribute.attnvals to float4, change #ifdef 0 to #if 0, fix aix call to strNcpy, fix pg_super_user_id in pg_dumpall, change pg_database.dtadba from oid to int4.