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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