Zhenghua Gao created FLINK-6124:
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Summary: support max/min aggregations for string type
Key: FLINK-6124
URL: https://issues.apache.org/jira/browse/FLINK-6124
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: Zhenghua Gao
Assignee: Zhenghua Gao
Recently when I port some query to Flink SQL, I found currently min/max
aggregations on string type is not supported and should be added.
When min/max aggregations are used on string column, return min/max value by
lexicographically order.
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