Joel Bernstein created SOLR-7525:
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Summary: Add ComplementStream
Key: SOLR-7525
URL: https://issues.apache.org/jira/browse/SOLR-7525
Project: Solr
Issue Type: New Feature
Components: SolrJ
Reporter: Joel Bernstein
Priority: Minor
This ticket adds a ComplementStream to the Streaming API and Streaming
Expression language.
The ComplementStream will wrap two TupleStreams (StreamA, StreamB) and emit
Tuples from StreamA that are not in StreamB.
Streaming API Syntax:
{code}
ComplementStream cstream = new Complement(streamA, streamB, comp);
{code}
Streaming Expression syntax:
{code}
complement(search(...), search(...), on(...))
{code}
Internal implementation will rely on the ReducerStream.
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