[jira] [Assigned] (DRILL-588) decimal type treats decimal point as a significant digit

["Mehant Baid (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mehant Baid reassigned DRILL-588:
---------------------------------

    Assignee: Mehant Baid

> decimal type treats decimal point as a significant digit
> --------------------------------------------------------
>
>                 Key: DRILL-588
>                 URL: https://issues.apache.org/jira/browse/DRILL-588
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Chun Chang
>            Assignee: Mehant Baid
>         Attachments: DRILL-588.patch
>
>
> convert a 0.00000001 as decimal(9,9) fails. I think we count the decimal point as a significant digit which is wrong.
> 0: jdbc:drill:schema=dfs> select cast(c_decimal9 as decimal(9,9)) from data where c_row = 6;
> Query failed: org.apache.drill.exec.rpc.RpcException: Remote failure while running query.[error_id: "6cbc059b-2001-4ca5-95dc-729dc5226836"
> endpoint {
>   address: "qa-node118.qa.lab"
>   user_port: 31010
>   control_port: 31011
>   data_port: 31012
> }
> error_type: 0
> message: "Failure while running fragment. < DrillRuntimeException:[ Precision is insufficient for the provided input: 0.00000001 Precision: 9 Total Digits: 10 ]"
> ]
> Error: exception while executing query (state=,code=0)
> cast it to varchar shows the correct value.
> 0: jdbc:drill:schema=dfs> select cast(c_decimal9 as varchar(10)) from data where c_row = 6;
> +------------+
> |   EXPR$0   |
> +------------+
> | 0.00000001 |
> +------------+
> 1 row selected (0.141 seconds)



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