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https://issues.apache.org/jira/browse/CALCITE-1548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1548.
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Resolution: Fixed
Fix Version/s: 1.11.0
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/599ea339.
> Instantiate function objects once per query
> -------------------------------------------
>
> Key: CALCITE-1548
> URL: https://issues.apache.org/jira/browse/CALCITE-1548
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Fix For: 1.11.0
>
>
> If a user-defined function is based on a class and its methods are non-static
> then it needs to be instantiated; at present the code generator seems to
> instantiate it once per iteration, but it should be instantiated in a static
> member, therefore once per query.
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