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https://issues.apache.org/jira/browse/TAJO-1881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-1881:
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Fix Version/s: (was: 0.12.0)
> Add Javascript UDF support
> --------------------------
>
> Key: TAJO-1881
> URL: https://issues.apache.org/jira/browse/TAJO-1881
> Project: Tajo
> Issue Type: New Feature
> Components: Function/UDF
> Reporter: Hyunsik Choi
>
> Basically, users should make their own java implementation for UDFs and
> create the jar for them. In addition, users should distribute the jar across
> all cluster nodes. It is very cumbersome work.
> So, I propose javascript UDF, which can be loaded instantly in runtime. Also,
> users can include their own UDF in their own SQL file.
> Java 8 provides the better script engine system. Basically, it provides
> Nashorn, which is a javascript engine. We can easily implement this feature
> by using Nashorn.
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