Sean R. Owen created SPARK-37307:
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Summary: Don't obtain JDBC connection for empty partition
Key: SPARK-37307
URL: https://issues.apache.org/jira/browse/SPARK-37307
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 3.2.0
Reporter: Sean R. Owen
In JdbcUtils.scala:savePartition, the code obtains a database connection even
when there is no data in the partition. It works correctly and returns it, but,
may be advantageous to simply skip that and other overhead if nothing will be
written at all.
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