[jira] [Commented] (SPARK-28097) Map ByteType to SMALLINT when using JDBC with PostgreSQL

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-28097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16867004#comment-16867004 ] 

Apache Spark commented on SPARK-28097:
--------------------------------------

User 'mojodna' has created a pull request for this issue:
https://github.com/apache/spark/pull/24845

> Map ByteType to SMALLINT when using JDBC with PostgreSQL
> --------------------------------------------------------
>
>                 Key: SPARK-28097
>                 URL: https://issues.apache.org/jira/browse/SPARK-28097
>             Project: Spark
>          Issue Type: Improvement
>          Components: Input/Output
>    Affects Versions: 2.3.3, 2.4.3
>            Reporter: Seth Fitzsimmons
>            Priority: Minor
>
> PostgreSQL doesn't have {{TINYINT}}, which would map directly, but {{SMALLINT}}s are sufficient for uni-directional translation (i.e. when writing).
> This is equivalent to a user selecting {{'byteColumn.cast(ShortType)}}.



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