Re: Text format protocol representation - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Text format protocol representation
Date
Msg-id 19407.1053617889@sss.pgh.pa.us
Whole thread Raw
In response to Re: Text format protocol representation  (Greg Stark <gsstark@mit.edu>)
Responses Re: Text format protocol representation
List pgsql-hackers
Greg Stark <gsstark@mit.edu> writes:
> Oh, I don't. I was just mentioning that if you append a nul in the protocol
> and allow applications to use that instead of the length provided then you've
> pretty much committed to never allowing nuls in text/varchars.

Um.  Well, there isn't any such assumption in the protocol (and I'm agin
Peter's suggestion to put one in), but realistically I don't see us ever
allowing \0 in external-text-representation strings.  It would break too
many things on both client and server sides, and the payback is too small.

The cases I can think of where you'd like to allow \0 are really binary
data, not text, and we now have respectably clean support for binary
I/O.  So the need to allow it seems to me to have dropped way down, too.
        regards, tom lane


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