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From "Ferdinand Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15499) Nested column pruning: don't prune paths when a SerDe is used only for serializing
Date Fri, 23 Dec 2016 01:02:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15771523#comment-15771523
] 

Ferdinand Xu commented on HIVE-15499:
-------------------------------------

LGTM, just a minor comment. Please remove extra space before nested_tbl_3.
{code}
+DROP TABLE IF EXISTS  nested_tbl_3;
{code}

> Nested column pruning: don't prune paths when a SerDe is used only for serializing
> ----------------------------------------------------------------------------------
>
>                 Key: HIVE-15499
>                 URL: https://issues.apache.org/jira/browse/HIVE-15499
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Serializers/Deserializers
>            Reporter: Chao Sun
>            Assignee: Chao Sun
>         Attachments: HIVE-15499.1.patch
>
>
> In {{FileSinkOperator}}, a serializer is created to write output data. When initializing
it we should not read the {{ColumnProjectionUtils.READ_NESTED_COLUMN_PATH_CONF_STR}} property
since this is only used for the read path, and the path may not match the schema for the output
table (for instance, in the case of insert).



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