[jira] [Comment Edited] (HIVE-14315) Implement StatsProvidingRecordReader for ParquetRecordReaderWrapper

["Xuefu Zhang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-14315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15390706#comment-15390706 ] 

Xuefu Zhang edited comment on HIVE-14315 at 7/23/16 5:04 PM:
-------------------------------------------------------------

+1 pending on tests. A test would be great if there isn't one existing.


was (Author: xuefuz):
+1 pending on tests.

> Implement StatsProvidingRecordReader for ParquetRecordReaderWrapper
> -------------------------------------------------------------------
>
>                 Key: HIVE-14315
>                 URL: https://issues.apache.org/jira/browse/HIVE-14315
>             Project: Hive
>          Issue Type: New Feature
>          Components: Statistics
>    Affects Versions: 2.1.0
>            Reporter: Chao Sun
>            Assignee: Chao Sun
>         Attachments: HIVE-14315.0.patch
>
>
> Currently only ORC supports {{analyze table ... compute statistics noscan}} (via HIVE-6578) where stats such as # of rows, raw datasize, etc., can be obtained via the footer. The similar functionality should be implemented on Parquet since it also has the info in the metadata.



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