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Posted to issues@flink.apache.org by "Jingsong Lee (Jira)" <ji...@apache.org> on 2020/02/24 11:32:00 UTC

[jira] [Commented] (FLINK-16161) Statistics zero should be unknown in HiveCatalog

    [ https://issues.apache.org/jira/browse/FLINK-16161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17043433#comment-17043433 ] 

Jingsong Lee commented on FLINK-16161:
--------------------------------------

master: fe9f448a446a9f5747ece9fa8b0f1b4928c17248

release-1.10: f7dcb02f933b94d773b00ea844ba66099c45b8f1

> Statistics zero should be unknown in HiveCatalog
> ------------------------------------------------
>
>                 Key: FLINK-16161
>                 URL: https://issues.apache.org/jira/browse/FLINK-16161
>             Project: Flink
>          Issue Type: Bug
>          Components: Connectors / Hive
>            Reporter: Jingsong Lee
>            Assignee: Jingsong Lee
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: 1.10.1
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> In hive, treat statistics zero as unknown, but in Flink HiveCatalog, treat zero as real value.
> This lead wrong inputs to CBO.
> Previous discussed in [https://github.com/apache/flink/pull/10380]



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