On Nov 16, 2013, at 4:40 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: >> Co-worker asked a question I could not answer: Why is IF NOT EXISTS not >> supported by CREATE TABLE AS? > > That's an even worse idea than plain CREATE IF NOT EXISTS (which was > put in over vocal objections from me and some other people). Not only > would you not have the faintest clue as to the properties of the table > afterwards, but no clue as to its contents either.
You mean that, after running it, one cannot tell whether or not a new table was created or not without looking at it? I guess that makes sense, though sometimes I like to tell the system to assume that I know what I’m doing -- e.g., that either outcome works for me. Not essential as a core feature, mind you; I can use DO to accomplish the same thing. It’s just a bit more work that way. And perhaps that’s for the best. Best, David -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
