[jira] [Closed] (CALCITE-1171) Limit N on JdbcSchema pushdown doesn't seem to work

["Hongze Zhang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-1171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hongze Zhang closed CALCITE-1171.
---------------------------------

The issue was resolved but not closed in the given fix version. Closing now.

> Limit N on JdbcSchema pushdown doesn't seem to work
> ---------------------------------------------------
>
>                 Key: CALCITE-1171
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1171
>             Project: Calcite
>          Issue Type: Bug
>          Components: avatica, core
>            Reporter: Dan Di Spaltro
>            Assignee: Julian Hyde
>            Priority: Minor
>             Fix For: 1.16.0
>
>
> I am exploring the code and came across this situation which I can't decide if it's intended or not.  Programatically, I create a JdbcSchema on a Calcite driver connection, and then execute a single query.  I have a breakpoint in the postgres driver, because I wanted to see how the queries end up before they're sent to PG.  So I started simple, select * from X id = 'foo', which works great.  Then I did a select * from X limit 10.  And I noticed I was getting the correct number of rows back, but when sending to PG it would just send select * from X and then looks like the enumerable code (linq4j) would then chop off the results.  Is there a way to change this behavior, or is this intended?



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