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https://issues.apache.org/jira/browse/SPARK-17229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Herman van Hovell resolved SPARK-17229.
---------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

> Postgres JDBC dialect should not widen float and short types during reads
> -------------------------------------------------------------------------
>
>                 Key: SPARK-17229
>                 URL: https://issues.apache.org/jira/browse/SPARK-17229
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Josh Rosen
>            Assignee: Josh Rosen
>            Priority: Minor
>             Fix For: 2.1.0
>
>
> When reading {{float4}} and {{smallint}} columns from PostgreSQL, Spark's 
> Postgres dialect widens these types to Decimal and Integer rather than using 
> the narrower Float and Short types.



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