[jira] [Created] (SOLR-16243) Compile SQL to Streaming Expressions while visiting the Calcite SQL parse tree

["Joel Bernstein (Jira)" <ji...@apache.org>]

Joel Bernstein created SOLR-16243:
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             Summary: Compile SQL to Streaming Expressions while visiting the Calcite SQL parse tree
                 Key: SOLR-16243
                 URL: https://issues.apache.org/jira/browse/SOLR-16243
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: Parallel SQL
            Reporter: Joel Bernstein


Currently Solr SQL visits the SQL parse tree and builds up a set of properties that are passed to the SolrTable which creates the Streaming Expression object tree. This technique only works because we're not dealing yet with Joins. It won't be possible to express joins using the current approach. In order to support joins we'll need to build the Streaming Expression as we visit the parse tree and pass the expression directly to the SolrTable. 




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