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Posted to issues@ignite.apache.org by "Konstantin Orlov (Jira)" <ji...@apache.org> on 2021/01/22 08:55:00 UTC

[jira] [Commented] (IGNITE-13566) Calcite integration. Table size statistics for cost planer

    [ https://issues.apache.org/jira/browse/IGNITE-13566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17270007#comment-17270007 ] 

Konstantin Orlov commented on IGNITE-13566:
-------------------------------------------

Hi, [~zstan]! Good in general, but I left a few comment, please see PR.

> Calcite integration. Table size statistics for cost planer
> ----------------------------------------------------------
>
>                 Key: IGNITE-13566
>                 URL: https://issues.apache.org/jira/browse/IGNITE-13566
>             Project: Ignite
>          Issue Type: New Feature
>          Components: sql
>            Reporter: Yury Gerzhedovich
>            Assignee: Stanilovsky Evgeny
>            Priority: Critical
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> Calcite planner doesn't know about the size of the tables and could make the wrong decision about join order. Need to add such knowledge.



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