hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-16023) Wrong estimation for number of rows generated by IN expression
Date Fri, 24 Feb 2017 13:55:44 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jesus Camacho Rodriguez updated HIVE-16023:
-------------------------------------------
    Attachment: HIVE-16023.01.patch

> Wrong estimation for number of rows generated by IN expression
> --------------------------------------------------------------
>
>                 Key: HIVE-16023
>                 URL: https://issues.apache.org/jira/browse/HIVE-16023
>             Project: Hive
>          Issue Type: Bug
>          Components: Statistics
>    Affects Versions: 2.2.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>         Attachments: HIVE-16023.01.patch, HIVE-16023.patch
>
>
> Code seems to be wrong, as we are factoring the number of rows to create the multiplying
factor, instead of NDV for given column(s) and NDV in IN clause.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

Mime
View raw message