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  1. Solr
  2. SOLR-10559

Add let, get and tuple Streaming Expressions

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Resolved
    • Affects Version/s: None
    • Fix Version/s: 6.6, 7.0
    • Component/s: None
    • Security Level: Public (Default Security Level. Issues are Public)
    • Labels:
      None

      Description

      The let and get Streaming Expressions allows the tuples in a stream to be assigned to a variable so it can be used more then once during an expression.

      This builds on the list and cell expressions (SOLR-10551)

      Here is the sample syntax:

      let(cell(a, expr), 
          cell(b, expr), 
          list(cell(a, get(a)),
               cell(b, get(b)),
               cell(correlation, correlate(get(a), fielda, get(b), fieldb)))
      

      In the example above the let expression is saving the contents of two cell expressions (a, b). The get expression is retrieving the tuples and using them later in the expression.

      So for example two facet expressions could be stored in the let, and then displayed and correlated later in the expression.

        Attachments

        1. SOLR-10559.patch
          12 kB
          Joel Bernstein
        2. SOLR-10559.patch
          14 kB
          Joel Bernstein
        3. SOLR-10559.patch
          15 kB
          Joel Bernstein
        4. SOLR-10559.patch
          17 kB
          Joel Bernstein

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              • Assignee:
                Unassigned
                Reporter:
                joel.bernstein Joel Bernstein
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                • Created:
                  Updated:
                  Resolved: