Span Near Query

A query that matches spans which are near one another. One can specify slop, the maximum number of intervening unmatched positions, as well as whether matches are required to be in-order.

Proto definition:

// Wrapper message for different types of SpanQuery
message SpanQuery {
  oneof query {
    TermQuery spanTermQuery = 1;
    SpanNearQuery spanNearQuery = 2;
    SpanMultiTermQueryWrapper spanMultiTermQueryWrapper = 3;
  }
}

// Cannot be constructed directly. Use SpanQuery message to construct.
message SpanNearQuery {
    // Clauses for a span near query.
    repeated SpanQuery clauses = 1;
    // Maximum number of positions between matching terms.
    int32 slop = 2;
    // True if the matching terms must be in the same order as the query.
    bool inOrder = 3;
}