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From "Victoria Markman (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2015) Casting numeric value that does not fit in integer data type produces incorrect result
Date Mon, 27 Apr 2015 23:32:38 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Victoria Markman updated DRILL-2015:
------------------------------------
    Labels: document_if_not_fixed  (was: )

> Casting numeric value that does not fit in integer data type produces incorrect result
> --------------------------------------------------------------------------------------
>
>                 Key: DRILL-2015
>                 URL: https://issues.apache.org/jira/browse/DRILL-2015
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Data Types
>    Affects Versions: 0.8.0
>            Reporter: Victoria Markman
>            Assignee: Daniel Barclay (Drill)
>              Labels: document_if_not_fixed
>             Fix For: Future
>
>
> t1.json
> {code}
> { "a1": 1 ,    "b1" : 1}
> { "a1": 2 ,    "b1" : 1}
> { "a1": 2 ,    "b1" : 2}
> { "a1": 3 ,    "b1" : 2}
> { "a1": 5000147483647 , "b1" : 3}
> {code}
> We should throw an error, this is technically data corruption.
> {code}
> 0: jdbc:drill:schema=dfs> select cast(a1 as integer) from `t1.json`;
> +------------+
> |   EXPR$0   |
> +------------+
> | 1          |
> | 2          |
> | 2          |
> | 3          |
> | 805551103  |
> +------------+
> 5 rows selected (0.074 seconds)
> {code}
> {code}
> 0: jdbc:drill:schema=dfs> select cast(2147483648 as integer) from `t1.json`;
> +------------+
> |   EXPR$0   |
> +------------+
> | -2147483648 |
> | -2147483648 |
> | -2147483648 |
> | -2147483648 |
> | -2147483648 |
> +------------+
> 5 rows selected (0.076 seconds)
> {code}



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