You absolutely need to turn in echoing and locate the specific SQL query which
causes the issue. Queries can take excessive time for a very wide variety of
reasons.
On Jul 16, 2010, at 12:56 PM, Adrian Price-Whelan wrote:
Hello --
I'm working with a database populated with data originally from a file
structure of files that are ~150MB each. We are dealing with a lot of data
that is being stored in the database using the 'ARRAY' datatype, specifically
numeric[]. After loading some of the data into the database I tried
performing a query to get back some data, and comparing it with code that
reads directly from the file system - but the database query took ~50 times
longer to complete. For instance, to retrieve 100 records that contain a few
4000 element arrays each using the code that reads the filesystem it took
less than a second, but the query on the database took around 25 seconds to
complete. Has anyone else had issues with array types slowing down queries or
does this sound more like another issue?
Thanks!
Adrian
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