Jihoon Son created TAJO-1588:
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Summary: 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
Fix For: 0.11.0
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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