Thomas Graves created SPARK-23304:
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Summary: Spark SQL coalesce() against hive not working
Key: SPARK-23304
URL: https://issues.apache.org/jira/browse/SPARK-23304
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.3.0
Reporter: Thomas Graves
Testing with spark 2.3 and I see a difference in the sql coalesce talking to
hive vs spark 2.2. It seems spark 2.3 ignores the coalesce.
Query:
spark.sql("SELECT COUNT(DISTINCT(something)) FROM sometable WHERE dt >=
'20170301' AND dt <= '20170331' AND something IS NOT
NULL").coalesce(160000).show()
in spark 2.2 the coalesce works here, but in spark 2.3, it doesn't.
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