Timo Walther created CALCITE-1867:
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Summary: Allow creating additional SqlGroupFunctions
Key: CALCITE-1867
URL: https://issues.apache.org/jira/browse/CALCITE-1867
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: Timo Walther
Assignee: Julian Hyde
In Flink we want to create additional group auxiliary functions (such as
{{TUMBLE_ROWTIME(), TUMBLE_PROCTIME()}}).
Unfortunately, {{SqlGroupFunction}} and its methods are package-private which
prevents us from adding custom functions. Also {{AuxiliaryConverter}} limits
because it is statically defined and not pluggable.
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