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https://issues.apache.org/jira/browse/METAMODEL-1?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Henry Saputra updated METAMODEL-1:
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Assignee: (was: Henry Saputra)
> Only use CSV count approximation when "where items" is empty
> ------------------------------------------------------------
>
> Key: METAMODEL-1
> URL: https://issues.apache.org/jira/browse/METAMODEL-1
> Project: Metamodel
> Issue Type: Bug
> Reporter: Kasper Sørensen
> Priority: Critical
>
> I accidentally discovered this bug today while working with the MetaModel
> codebase.
> It seems that when doing an "approximate COUNT" query on a CSV file we don't
> check if there are any WHERE items present in the query also. I added that as
> a check to return null when there are where items in the query (indicating
> that the count query cannot be handled in a optimized fashion - which will in
> turn cause a count to be made by actually counting all records).
> The patch is available here:
> https://gist.github.com/kaspersorensen/6079811
> Regards,
> Kasper
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