Re: (PATCH) Adding CORRESPONDING to Set Operations - Mailing list pgsql-hackers

From Kerem Kat
Subject Re: (PATCH) Adding CORRESPONDING to Set Operations
Date
Msg-id CAJZSWkUHRWbQ4htoL4WP9xzHwjGMpa1mjphz9KZrSS4Y7e3C7Q@mail.gmail.com
Whole thread Raw
In response to Re: (PATCH) Adding CORRESPONDING to Set Operations  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: (PATCH) Adding CORRESPONDING to Set Operations
List pgsql-hackers
On Mon, Nov 14, 2011 at 15:32, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Kerem Kat <keremkat@gmail.com> writes:
>> Corresponding is currently implemented in the parse/analyze phase. If
>> it were to be implemented in the planning phase, explain output would
>> likely be as you expect it to be.
>
> It's already been pointed out to you that doing this at parse time is
> unacceptable, because of the implications for reverse-listing of rules
> (views).
>
>                        regards, tom lane
>

I am well aware of that thank you.

Regards,

Kerem KAT


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