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From "Mehant Baid (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2244) Implicit cast between decimal data types is not implemented
Date Wed, 18 Feb 2015 01:51:13 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mehant Baid updated DRILL-2244:
-------------------------------
    Attachment: DRILL-2244.patch

> Implicit cast between decimal data types is not implemented
> -----------------------------------------------------------
>
>                 Key: DRILL-2244
>                 URL: https://issues.apache.org/jira/browse/DRILL-2244
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Codegen
>    Affects Versions: 0.8.0
>            Reporter: Victoria Markman
>            Assignee: Mehant Baid
>         Attachments: DRILL-2244.patch
>
>
> I created two tables in drill with the following schema:
> t1.c1 - decimal(8,2)
> t2.c1 - decimal(18,4)
> Attempt to join on these columns produces run time error on not implemented compare function.
> Since we do support cast from INT to BIGINT, this behavior is inconsistent.
> {code}
> 0: jdbc:drill:schema=dfs> select * from x1, x2 where x1.c1 = x2.c1;
> Query failed: RemoteRpcException: Failure while running fragment., Failure finding function
that runtime code generation expected.  Signature: compare_to( DECIMAL9:OPTIONALDECIMAL18:OPTIONAL,
 ) returns INT:REQUIRED [ 53049aa6-7165-4e5a-9dc5-9efa832b4e49 on atsqa4-134.qa.lab:31010
]
> [ 53049aa6-7165-4e5a-9dc5-9efa832b4e49 on atsqa4-134.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> {code}
> Explicit cast works:
> {code}
> 0: jdbc:drill:schema=dfs> select * from x1  left outer join x2 on cast(x1.c1 as decimal(18,2))
= x2.c1;
> +------------+------------+
> |     c1     |    c10     |
> +------------+------------+
> | 1032.65    | null       |
> +------------+------------+
> 1 row selected (0.137 seconds)
> {code}



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