Re: Performance with temporary table

On Apr 8, 2008, at 2:43 PM, Alvaro Herrera wrote:
> samantha mahindrakar escribió:
>> Well instead of creating a temp table everytime i just created a
>> permanant table and insert the data into it everytime and truncate
>> it.
>> I created indexes on this permanent table too. This did improve the
>> performance to some extent.
>>
>> Does using permanant tables also bloat the catalog or hinder the
>> performance?
>
> In terms of catalog usage, permanent tables behave exactly the same as
> temp tables.

True, but the point is that you're not bloating the catalogs with
thousands of temp table entries.

I agree with others though: it certainly doesn't sound like there's
any reason to be using temp tables here at all. This sounds like a
case of trying to apply procedural programming techniques to a
database instead of using set theory (which generally doesn't work
well).
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