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Dennis Gove commented on SOLR-10292: ------------------------------------ I'm not a huge fan of the function name, but feature-wise I think this would be good. {code} cartesian( <stream>, by="field1,field2", sort="field1 ASC" ) {code} 1. Supports any incoming stream 2. Allows you to do the product over multiple fields 3. Allows you to indicate a sort order for the new tuples, if not provided will default to incoming order of values in by fields Anything I'm missing? > Add cartesian Streaming Expression to build cartesian products from > multi-value fields > -------------------------------------------------------------------------------------- > > Key: SOLR-10292 > URL: https://issues.apache.org/jira/browse/SOLR-10292 > Project: Solr > Issue Type: New Feature > Security Level: Public(Default Security Level. Issues are Public) > Reporter: Joel Bernstein > > Currently all the Streaming Expression such as rollups, intersections, fetch > etc, work on single value fields. The *cartesian* expression would create a > stream of tuples from a single tuple with a multi-value field. This would > allow multi-valued fields to be operated on by the wider library of Streaming > Expression. > For example a single tuple with a multi-valued field: > id: 1 > author: [Jim, Jack, Steve] > Would be transformed in the following three tuples: > id:1 > author:Jim > id:1 > author:Jack > id:1 > author:Steve -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org