Re: TRUNCATE veeeery slow compared to DELETE in 7.4 - Mailing list pgsql-performance

From Josh Berkus
Subject Re: TRUNCATE veeeery slow compared to DELETE in 7.4
Date
Msg-id 200312100918.02501.josh@agliodbs.com
Whole thread Raw
In response to TRUNCATE veeeery slow compared to DELETE in 7.4  (Hartmut Raschick <hartmut.raschick@ke-elektronik.de>)
Responses Re: TRUNCATE veeeery slow compared to DELETE in 7.4  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-performance
Hartmut,

> DELETE:
> 1) 0.03u 0.04s 0:02.46 2.8% (already empty)
> 2) 0.05u 0.06s 0:01.19 9.2% (already empty)
>
> TRUNCATE:
> 1) 0.10u 0.06s 6:58.66 0.0% (already empty, compile runnig simult.)
> 2) 0.10u 0.02s 2:51.71 0.0% (already empty)

How about some times for a full table?

Incidentally, I believe that TRUNCATE has always been slightly slower than
DROP TABLE.

--
Josh Berkus
Aglio Database Solutions
San Francisco

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