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https://issues.apache.org/jira/browse/SPARK-16717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-16717:
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Labels: bulk-closed (was: )
> Dataframe (jdbc) is missing a way to link and external function to get a
> connection
> -----------------------------------------------------------------------------------
>
> Key: SPARK-16717
> URL: https://issues.apache.org/jira/browse/SPARK-16717
> Project: Spark
> Issue Type: Improvement
> Affects Versions: 1.6.2
> Reporter: Marco Colombo
> Priority: Minor
> Labels: bulk-closed
>
> In JdbcRRD it was possible to use a function to get a JDBC connection. This
> allow an external handling of the connections while now this is no more
> possible with dataframes.
> Please consider an addition to Dataframes for using an externally provided
> connectionFactory (such as a connection pool) in order to make data loading
> more efficient, avoiding connection close/recreation. Connections should be
> taken from provided function and returned to a second function whenever no
> more used by the RRD. So this will make jdbc handling more efficient.
> I.e. extending DataFrame class with a method like
> jdbc(Function0<java.sql.Connection> getConnection, Function0
> releaseConnection(java.sql.Connection))
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