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https://issues.apache.org/jira/browse/SOLR-16243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-16243:
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Description:
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 practical 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.
This ticket will only implement existing SQL support using the direct
compilation approach.
was:
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 practical 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.
This ticket will only implement existing SQL support using the direct
compilation approach.
> Compile SQL to a Streaming Expression 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
> Priority: Major
> Labels: RobustSQL
>
> 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 practical 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.
> This ticket will only implement existing SQL support using the direct
> compilation approach.
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