[jira] [Commented] (HIVE-17253) Adding SUMMARY statement to HPL/SQL

["Alan Gates (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-17253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16161871#comment-16161871 ] 

Alan Gates commented on HIVE-17253:
-----------------------------------

+1 for the patch.

[~ashutoshc], any thoughts on this since it is closely related to some of the stats stuff generated for the optimizer?

> Adding SUMMARY statement to HPL/SQL
> -----------------------------------
>
>                 Key: HIVE-17253
>                 URL: https://issues.apache.org/jira/browse/HIVE-17253
>             Project: Hive
>          Issue Type: Improvement
>          Components: hpl/sql
>            Reporter: Dmitry Tolpeko
>            Assignee: Dmitry Tolpeko
>             Fix For: 3.0.0
>
>         Attachments: HIVE-17253.1.patch
>
>
> Adding SUMMARY statement to HPL/SQL to describe a data set (table, query result) similar to Python and R.
> For each column output the data type, number of distinct values, non-NULL rows, mean, std, percentiles, min, max. Output additional stats for categorical columns. This helps perform quick and easy exploratory data analysis for SQL devs and business users.  http://hplsql.org/summary



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