Package org.apache.calcite.tools

Interface RelBuilder.GroupKey

Enclosing class:
RelBuilder
public static interface RelBuilder.GroupKey
Information necessary to create the GROUP BY clause of an Aggregate.
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    RelBuilder.GroupKey
    alias(@Nullable String alias)
    Assigns an alias to this group key.
    int
    groupKeyCount()
    Returns the number of columns in the group key.

  • Method Details

    • alias

      RelBuilder.GroupKey alias(@Nullable String alias)
      Assigns an alias to this group key.

      Used to assign field names in the group operation.

    • groupKeyCount

      int groupKeyCount()
      Returns the number of columns in the group key.