[jira] [Commented] (DRILL-2433) Implicit cast between date and timestamp is missing in joins

["Aman Sinha (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-2433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14520397#comment-14520397 ] 

Aman Sinha commented on DRILL-2433:
-----------------------------------

Can you change the EXPR$0 to a named column ?  We should preferably not use internal names in the queries. 

> Implicit cast between date and timestamp is missing in joins
> ------------------------------------------------------------
>
>                 Key: DRILL-2433
>                 URL: https://issues.apache.org/jira/browse/DRILL-2433
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Data Types
>            Reporter: Victoria Markman
>            Assignee: Aman Sinha
>             Fix For: 1.0.0
>
>         Attachments: DRILL-2433.patch
>
>
> {code}
> 0: jdbc:drill:schema=dfs> select count(*) from cast_tbl_1 a, cast_tbl_2 b where a.c_timestamp = b.c_date;
> Query failed: RemoteRpcException: Failure while running fragment., Failure finding function that runtime code generation expected.  Signature: compare_to_nulls_high( DATE:OPTIONAL, TIMESTAMP:OPTIONAL ) returns INT:REQUIRED [ e17b546e-81ec-49f0-ac91-f5714f570971 on atsqa4-134.qa.lab:31010 ]
> [ e17b546e-81ec-49f0-ac91-f5714f570971 on atsqa4-134.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> {code}
> This is inconsistent with our UNION ALL implementation.
> {code}
> 0: jdbc:drill:schema=dfs> select c_date from cast_tbl_1 union all select c_timestamp from cast_tbl_2 order by c_date limit 5;
> +------------+
> |   c_date   |
> +------------+
> | 1960-01-03 00:00:00.0 |
> | 1960-01-03 00:00:00.0 |
> | 1960-01-05 00:00:00.0 |
> | 1960-01-05 00:00:00.0 |
> | 1960-01-08 00:00:00.0 |
> +------------+
> 5 rows selected (0.276 seconds)
> {code}



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