Andrew Lamb created ARROW-12318:
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Summary: [Rust][DataFusion] Add support for AVG(Timestamp) types
Key: ARROW-12318
URL: https://issues.apache.org/jira/browse/ARROW-12318
Project: Apache Arrow
Issue Type: Improvement
Components: Rust - DataFusion
Reporter: Andrew Lamb
This is a follow on to ARROW-12277
Background: Support for Min/Max/Sum/Count were added for DataType::Timestamp(*)
types in https://github.com/apache/arrow/pull/9970.
This ticket tracks adding support for Avg, which is slightly more involved as
currently Avg assumes the output type is always F64, and in this case I think
Avg(timestamp) should also be (timestamp). We should double check what postgres
does in this case.
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