Jacques Nadeau created DRILL-1127:
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Summary: Automatically use StrAgg and support non-holder workspace
variables in UDAFs
Key: DRILL-1127
URL: https://issues.apache.org/jira/browse/DRILL-1127
Project: Apache Drill
Issue Type: Bug
Components: Execution - Codegen
Reporter: Jacques Nadeau
Assignee: Jinfeng Ni
Right now, the FunctionConverter will fail to load UDAFs that use non holder
workspace variables. This should be constrained to a restriction in using hash
aggregation. If we detect one of these functions (or use of variable width or
repeated data types workspace variables), we should only allow use of
StreamingAggregate during planning.
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