[jira] [Updated] (SPARK-9407) Parquet shouldn't push down predicates over a column whose underlying Parquet type is an ENUM

["Michael Armbrust (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-9407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Armbrust updated SPARK-9407:
------------------------------------
    Sprint: Spark 1.5 release

> Parquet shouldn't push down predicates over a column whose underlying Parquet type is an ENUM
> ---------------------------------------------------------------------------------------------
>
>                 Key: SPARK-9407
>                 URL: https://issues.apache.org/jira/browse/SPARK-9407
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.5.0
>            Reporter: Cheng Lian
>            Assignee: Cheng Lian
>            Priority: Blocker
>
> Spark SQL doesn't have an equivalent data type to Parquet {{BINARY (ENUM)}}, and always treats it as a UTF-8 encoded {{StringType}}. Thus, predicate over a Parquet {{ENUM}} column may be pushed down. However, Parquet 1.7.0 and prior versions only support filter push-down optimization for [a limited set of data types|https://github.com/apache/parquet-mr/blob/apache-parquet-1.7.0/parquet-column/src/main/java/org/apache/parquet/filter2/predicate/ValidTypeMap.java#L66-L80], and fails the query.
> The simplest solution seems to be upgrading parquet-mr to 1.8.1, which fixes this issue via PARQUET-201



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