Re: Very slow bytea data extraction

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msmbarabino@xxxxxxxxxxx wrote:
Hi all,
I'm using Postgresql 8.2.3 on a Windows XP system.

I need to write and retrieve bytea data from a table. The problem is that, while data insertion is quite fast, bytea extraction is very slow. I'm trying to store a 250KB image into the bytea field. A simple select query on a 36-row table takes more than one minute to execute.

Where is the problem?

Is it in executing the query (what does EXPLAIN ANALYSE show)?
Is it in fetching/formatting the data (what does the equivalent COUNT(*) show)?
How are you accessing the database: odbc,jdbc,other?
Does it do this with psql too?

--
  Richard Huxton
  Archonet Ltd


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