From: | Pavel Stehule <stehule(at)kix(dot)fsv(dot)cvut(dot)cz> |
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To: | "Jonah H(dot) Harris" <jharris(at)tvi(dot)edu> |
Cc: | Dave Cramer <pg(at)fastcrypt(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Neil Conway <neilc(at)samurai(dot)com>, Jan Wieck <JanWieck(at)Yahoo(dot)com>, Denis Lussier <denis(at)enterprisedb(dot)com>, <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Implementing SQL/PSM for PG 8.2 - debugger |
Date: | 2005-06-28 22:33:56 |
Message-ID: | Pine.LNX.4.44.0506290010320.9650-100000@kix.fsv.cvut.cz |
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Lists: | pgsql-hackers |
> I lean with you and Tom. While running it over the same libpq protocol
> would be helpful in some ways, it would have a lot of drawbacks and
> would really change the function of libpq. I think a separate debugging
> protocol is in order.
>
One message? I can't belive :).
> work on it (ANTLR currently generates Python, Java, or C++). I don't
> suggest we really reuse one of the current VMs as it would require a lot
> more support and coordination. Let's take the bytecode discussion off
> this thread and move it to another. There is certainly a good and bad
> side to using bytecode and I would be glad to discuss it in another thread.
>
I see only one advantage of WM - sharing between languages. But SQL/PSM or
PL/pgSQL are not clasic languages. Big advantage is big disadvantage too
-> relation on SQL engine. I can use all SQL types, but I can't to do
efective concation of strings. Sorry, I don't see any benefit of bytecode
for these languages.
PL/pgSQL works fine (for specific task). What can be better?
o evaluation of expressions. -- needs integration with sql parser
o debugging
o persistent compiled code
o syntax
Please, write me, private, your opinions. And don't scowl at me, so I am
in oportunity :).
Regards
Pavek
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