Re: massive quotes?
От | Andrew Dunstan |
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Тема | Re: massive quotes? |
Дата | |
Msg-id | 3F53572B.9040905@dunslane.net обсуждение исходный текст |
Ответ на | Re: massive quotes? (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
These approaches are to some extent orthogonal, ISTM. Maybe the best solution would be to do as Tom suggests and just change psql (and, I would add, pg_dump) to act nicely here, and if other interface users/authors need/want something along these lines re-examine the issue. I use JDBC for my web clients in my current project, but I wouldn't create a function in the client. I probably wouldn't using DBI/DBD:Pg either. So taking myself as a sample of one perhaps it is true that it's only needed in psql :-) I'm all for minimal solutions as long as they look nice. cheers andrew Tom Lane wrote: >Bruce Momjian <pgman@candle.pha.pa.us> writes: > > >>Let me jump in --- there is the issue of how to prevent the backend from >>running the query through the lexer/parser. The cleanest idea presented >>was: >>[snip] >> >> > >That's the same idea that was being discussed in this thread. I was >trying to remind people of the existence of prior discussion with >different (and IMHO better) ideas. > > > >>The interesting thing I missed at first viewing was that there is a >>semicolon after the first line. This allows the backend to go into a >>COPY-like mode where the client can pass lines to the backend bypassing >>the lexer/parser. >> >> > >What I don't like about this scheme is that it requires mods on both the >backend and client sides, to solve a problem that could be solved as >well or better (and definitely more simply) on the client side alone. >People are being misled by considering only psql, which is so stupid >that it might actually not need any change to be used with a COPY-based >function definition mode. I doubt that is true of any other client. >For a client that actually understands it's doing a function definition, >this is *not* simpler nor better. Instead of running a >string-literal-quotify transformation on the function text (which you >must admit is trivial), the client has to support switching into the >COPY protocol. That's not simpler. Add in any meaningful error >recovery (what do you do if the backend doesn't switch into COPY mode?) >and it's substantially more complex. > > >
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