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As I was falling asleep last night, I thought of something else. My original reply would explain slowness for fetching each row, but not necessarily the first. The issue that you're seeing implies that the database engine is having a hard time locating the rows. However, with 40,000 rows, it should be able to tablescan the table in a few seconds, so there's something going on here. There's another reply in this node that suggests that MySQL fetched the entire resultset before returning the first row. If you can confirm that, then that might your issue you are returning a lot of data...

thor

Feel the white light, the light within
Be your own disciple, fan the sparks of will
For all of us waiting, your kingdom will come


In reply to Re: DBI speed up needed on MySQL by thor
in thread DBI speed up needed on MySQL by jacques

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    [Corion]: I usually expect fixed header names, but am sometimes lenient in the order of columns. But changing the report titles often sounds to me as if you are not the sole consument of the export ;)
    [shmem]: perldigious: as always - if it ain't broke, don't fix it. Ther must be a very compelling reason for changing column names in a database. Those are rare.
    [Corion]: If you have whitespace in the column names in the database, whap the DBAs ;)
    [shmem]: It's common for some vendors to have column names such as WRSTVG or some other such whizzbang, and another table where these names are mapped to something meaningful depending on how you look at the data
    [shmem]: afair in SAP that occurs all the time

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