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Postgres: print SQLSTATE on DML failure, to help figure out when new special cases should be added
author Adam Chlipala <adam@chlipala.net>
date Wed, 27 Nov 2013 15:42:24 -0500
parents 318ba997a149
children
line wrap: on
line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False