COPY syntax improvement

I am working on the TODO item:

o Change syntax to WITH DELIMITER, (keep old syntax around?)

and I have added syntax so COPY can now accept all parameters at the end
using WITH:

COPY table
FROM { 'filename' | stdin }
[ [ WITH ]
[ BINARY ]
[ OIDS ]
[ DELIMITER 'delimiter' ]
[ NULL AS 'null string' ] ]

(COPY TO is similar.)

For portability, it still supports the old syntax of BINARY after COPY,
WITH OIDS after 'table' and USING DELIMITERS after 'filename'. I have
sent the patch to the patches list.

I have not modified pg_dump so that 7.3 dumps can be loaded into <=7.2
databases. I have modified psql \copy to _only_ use the new syntax, and
to only send the new syntax to the backends. (We don't usually support
new psql in to older databases anyway.) Not sure if I should document
the old syntax somewhere because pg_dump uses WITH OIDS with the old
syntax.

I have not applied the patch. I am waiting for comments.

--
Bruce Momjian | http://candle.pha.pa.us
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