| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Cc: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Subject: | Re: Patch for 8.5, transformationHook |
| Date: | 2009-04-20 14:16:38 |
| Message-ID: | 200904201716.38801.peter_e@gmx.net |
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| Lists: | pgsql-hackers |
On Monday 20 April 2009 09:52:05 Pavel Stehule wrote:
> I don't believe so is possible to find other general solution. (or
> better I didn't find any other solution). Tom has true,
> transformationHook on expression is expensive. I thing, so hook on
> function should be simple and fast - not all transformation's should
> be simple defined via property - classic sample is "decode" like
> functions, it needs procedural code.
I find this all a bit premature, given that you haven't clearly defined what
sort of user-visible functionality you hope to end up implementing. Which
makes it hard to argue why this or that approach might be better.
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