Pavel Stehule <pavel.steh...@gmail.com> writes: > 2013/2/2 Tom Lane <t...@sss.pgh.pa.us>: >> Shigeru Hanada <shigeru.han...@gmail.com> writes: >>> +1 for a). If users want to determine whether the result was NULL, or >>> want to use substitute string for NULL result, they can use coalesce >>> in SELECT clause. Anyway the feature should be documented clearly.
>> Yeah, I was considering that one too. Let's do it that way. > updated version Applied with corrections. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers