Re: BUG #2236: extremely slow to get unescaped bytea data

This is a table with just one entry created to test the problem. Should
not have any indexing issues.

I've since isolated the problem to the unescape_bytea function not the
SELECT.

I inserted the same image to a bytea column using base64 encoding, and
extracted it from the table (using base64 decoding) and this worked very
fast (<1 second). So, it is the unescape_bytea function that is to blame.

Hope that helps,

Kai Ronan
Technical Support
Kalador Entertainment Inc.

Alvaro Herrera wrote:

>Kai Ronan wrote:
>
>
>
>> // Get the bytea data
>> $res = pg_query("SELECT data FROM image WHERE name='big.gif'");
>>
>>
>
>Do you have an index in the image.name column? What does an
>
>EXPLAIN ANALYZE SELECT data FROM image WHERE name='big.gif'
>
>say?
>
>
>