Joel Bernstein created SOLR-7560:
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Summary: Parallel SQL Support
Key: SOLR-7560
URL: https://issues.apache.org/jira/browse/SOLR-7560
Project: Solr
Issue Type: New Feature
Components: clients - java, search
Reporter: Joel Bernstein
This ticket provides support for executing *Parallel SQL* queries across
SolrCloud collections. The SQL engine will be built on top of the Streaming API
(SOLR-7082), which provides support for *parallel relational algebra* and
*real-time map-reduce*.
Basic design:
1) A new SQLHandler will be added to process SQL requests. The SQL statements
will be compiled to Streaming API classes for parallel execution across
SolrCloud worker nodes.
2) SolrCloud collections will be abstracted as *Relational Tables*.
3) The Presto SQL parser will be used to parse the SQL statements.
4) A JDBC thin client will be added as a Solrj client.
This ticket will focus on putting the framework in place and providing basic
SELECT support and GROUP BY aggregate support.
Future releases will continue to build on this framework to additional SQL
features.
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