| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Vladimir Sitnikov <sitnikov(dot)vladimir(at)gmail(dot)com> |
| Cc: | Craig Ringer <craig(at)2ndquadrant(dot)com>, Yury Zhuravlev <u(dot)zhuravlev(at)postgrespro(dot)ru>, Fabrízio de Royes Mello <fabriziomello(at)gmail(dot)com>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: NOT EXIST for PREPARE |
| Date: | 2016-03-24 15:26:16 |
| Message-ID: | 25502.1458833176@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Vladimir Sitnikov <sitnikov(dot)vladimir(at)gmail(dot)com> writes:
> Craig>I really, really doubt you can change this before we do a
> protocol version bump.
> Technically speaking, the idea of using first bytes of statement name
> to convey extra information does not require protocol version bump. It
> can be backward and forward compatible.
> For instance: if statement name starts with __, then skip throwing an
> error if statement with exactly same text and parameter types has
> already been prepared.
If you think that's not a protocol change, you are mistaken. It
changes a behavior that's specified in the protocol documentation.
regards, tom lane
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