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Posted to issues@spark.apache.org by "Davies Liu (JIRA)" <ji...@apache.org> on 2015/07/23 19:19:04 UTC

[jira] [Created] (SPARK-9281) Parse literals as decimal in SQL

Davies Liu created SPARK-9281:
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             Summary: Parse literals as decimal in SQL
                 Key: SPARK-9281
                 URL: https://issues.apache.org/jira/browse/SPARK-9281
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Davies Liu


Right now, we use double to parse all the float number in SQL. When it's used in expression together with DecimalType, it will turn the decimal into double as well.

Also it will loss some precision when using double.

It's better to parse the float number as decimal (we will know exactly the precision and scale is), it also work well with double.

BTW, this is a break change. 



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