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https://issues.apache.org/jira/browse/SPARK-23655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16396537#comment-16396537
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Takeshi Yamamuro commented on SPARK-23655:
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Is it bad to cast `aclitem` to strings or others in pg, and then load them into 
spark? I feel it is less meaning to support it in spark.

> Add support for type aclitem (PostgresDialect)
> ----------------------------------------------
>
>                 Key: SPARK-23655
>                 URL: https://issues.apache.org/jira/browse/SPARK-23655
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Diego da Silva Colombo
>            Priority: Major
>
> When I try to load the data of pg_database, an exception occurs:
> `java.lang.RuntimeException: java.sql.SQLException: Unsupported type 2003`
> It's happens because the typeName of the column is *aclitem,* and there is no 
> match case for thist type on toCatalystType



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