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https://issues.apache.org/jira/browse/SPARK-2927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14090990#comment-14090990
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Apache Spark commented on SPARK-2927:
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User 'yhuai' has created a pull request for this issue:
https://github.com/apache/spark/pull/1855
> Add a conf to configure if we always read Binary columns stored in Parquet as
> String columns
> --------------------------------------------------------------------------------------------
>
> Key: SPARK-2927
> URL: https://issues.apache.org/jira/browse/SPARK-2927
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Yin Huai
>
> Based on Parquet spec (https://github.com/Parquet/parquet-format), "strings
> are stored as byte arrays (binary) with a UTF8 annotation". However, if the
> data generator does not follow it, we will only read binary values back
> instead of string values.
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