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https://issues.apache.org/jira/browse/SOLR-8845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15250699#comment-15250699
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Kevin Risden commented on SOLR-8845:
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Yea well here is the Apache Spark source for JDBCRDD for that method:
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala#L109
> SolrJ JDBC - Ensure that Spark works with SolrJ JDBC
> ----------------------------------------------------
>
> Key: SOLR-8845
> URL: https://issues.apache.org/jira/browse/SOLR-8845
> Project: Solr
> Issue Type: Sub-task
> Components: SolrJ
> Affects Versions: master
> Reporter: Trey Cahill
>
> Ensure that Spark is able work with SolrJ JDBC.
> Currently, in Spark 1.6 there are 2 known issues:
> 1. SparkSQL uses a connection.prepareStatement() call, which returns null in
> the SolrJ implementation
> 2. SparkSQL query's via a "select *" query, which is currently not supported.
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