You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/11/21 07:50:58 UTC

[jira] [Assigned] (SPARK-18522) Create explicit contract for column stats serialization

     [ https://issues.apache.org/jira/browse/SPARK-18522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-18522:
------------------------------------

    Assignee: Apache Spark  (was: Reynold Xin)

> Create explicit contract for column stats serialization
> -------------------------------------------------------
>
>                 Key: SPARK-18522
>                 URL: https://issues.apache.org/jira/browse/SPARK-18522
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>            Assignee: Apache Spark
>
> The current implementation of column stats uses the base64 encoding of the internal UnsafeRow format to persist statistics (in table properties in Hive metastore). This is an internal format that is not stable across different versions of Spark and should NOT be used for persistence.
> In addition, it would be better if statistics stored in the catalog is human readable.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org