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https://issues.apache.org/jira/browse/TAJO-1588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jaehwa Jung updated TAJO-1588:
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Fix Version/s: (was: 0.11.0)
> Improve LogicalPlanner to refer to Catalog to identify UDFs and UDAFs
> ---------------------------------------------------------------------
>
> Key: TAJO-1588
> URL: https://issues.apache.org/jira/browse/TAJO-1588
> Project: Tajo
> Issue Type: Improvement
> Components: Planner/Optimizer
> Reporter: Jihoon Son
>
> Given a query involving functions, the logical planner generates a proper
> logical plan depending on the type of functions, that is, scalar functions or
> aggregation functions. However, the logical planner cannot currently figure
> out the proper type of user-defined functions because it decides the function
> type based on just our fixed syntax. That is, built-in functions such as avg,
> count, sum, etc can be figured out as aggregation functions, user-defined
> aggregation functions are not.
> To solve this problem, the logical planner should additionally check the
> function type based on catalog information.
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