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layout: section title: “CoGroupByKey” permalink: /documentation/transforms/python/aggregation/cogroupbykey/ section_menu: section-menu/documentation.html

CoGroupByKey

See more information in the [Beam Programming Guide]({{ site.baseurl }}/documentation/programming-guide/#cogroupbykey).

Examples

See BEAM-7390 for updates.

Related transforms

• [CombineGlobally]({{ site.baseurl }}/documentation/transforms/python/aggregation/combineglobally) to combine elements.
• [GroupByKey]({{ site.baseurl }}/documentation/transforms/python/aggregation/groupbykey) takes one input collection.