Fix very old bug which made tuples changed/inserted by a commnd
visible to command itself (so we had multiple update of updated tuples,
etc).

visible to command itself (so we had multiple update of updated tuples,
etc).

pg_password utility.  Cleanup for psql passwords.  New datetime contrib stuff for new version.  Fix for strutils needing config.h.

elog(WARN,"ADD ATTRIBUTE: DEFAULT is not implemented, yet");
Call ExecConstraints in CopyFrom

Store CHECK infos on CREATE TABLE

Set atttype for relchecks to 21 (int2)
Set relkind for pg_attrdef & pg_relcheck to 'n'