[jira] [Commented] (CALCITE-4058) Add Limit and LogicalLimit operator and deprecate limit in Sort

["Rui Wang (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-4058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17132978#comment-17132978 ] 

Rui Wang commented on CALCITE-4058:
-----------------------------------

I would guess people will have lots of opinions on this idea :)

> Add Limit and LogicalLimit operator and deprecate limit in Sort
> ---------------------------------------------------------------
>
>                 Key: CALCITE-4058
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4058
>             Project: Calcite
>          Issue Type: New Feature
>          Components: core
>            Reporter: Haisheng Yuan
>            Priority: Major
>
> Add {{Limit}} base class and {{LogicalLimit}} operator.
> Fetch and offset should not be in Sort operator, we should deprecate the fields while keeping the Sort work for compatibility.
> {code:java}
> select * from foo limit 5 offset 3;
> select * from foo order by a;
> {code}
> The above 2 queries are totally different query, but have the same operators, SortxxxTranspose sometimes means limit push down, which is counter-intuitive. 



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