Julian Hyde created CALCITE-2647:
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Summary: In RelBuilder, add a groupKey method that assumes only
one grouping set
Key: CALCITE-2647
URL: https://issues.apache.org/jira/browse/CALCITE-2647
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Assignee: Julian Hyde
In RelBuilder, add a groupKey method that assumes only one grouping set. Since
this is the most common case (GROUP BY in SQL, without GROUPING SETS or ROLLUP
or CUBE) it will make many uses of the RelBuilder API more concise.
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