Josh Rosen created SPARK-10988:
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Summary: Reduce duplication in Aggregate2's expression rewriting
logic
Key: SPARK-10988
URL: https://issues.apache.org/jira/browse/SPARK-10988
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Josh Rosen
Assignee: Josh Rosen
In `aggregate/utils.scala`, there is a substantial amount of duplication in the
expression-rewriting logic. As a prerequisite to supporting imperative
aggregate functions in `TungstenAggregate`, we should refactor this file so
that the same expression-rewriting logic is used for both `SortAggregate` and
`TungstenAggregate`.
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