Another series started from utils/builtins.h

src/include/access/skey.h

src/include/access/strat.h

src/include/access/tupdesc.h

src/include/rewrite/prs2lock.h

src/include/storage/fd.h

src/include/utils/builtins.h

src/include/utils/geo-decls.h

src/include/utils/rel.h