Marco Gaido created SPARK-26535:
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Summary: Parsing literals as DOUBLE instead of DECIMAL
Key: SPARK-26535
URL: https://issues.apache.org/jira/browse/SPARK-26535
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.0.0
Reporter: Marco Gaido
As pointed out by [~dkbiswal]'s comment
https://github.com/apache/spark/pull/22450#issuecomment-423082389, most of
other RDBMS (DB2, Presto, Hive, MSSQL) consider literals as DOUBLE by default.
Spark as of now consider them as DECIMAL. This is quite problematic especially
in relation with the operations on decimal, for which we base our
implementation on Hive/MSSQL.
So this ticket is for moving by default the resolution of literals as DOUBLE,
but with a config which allows to get back to the previous behavior.
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