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From "Venki Korukanti (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2341) Type information is lost if list of fields is specified during create view
Date Wed, 15 Apr 2015 05:24:58 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Venki Korukanti updated DRILL-2341:
-----------------------------------
    Attachment: DRILL-2341-1.patch

> Type information is lost if list of fields is specified during create view
> --------------------------------------------------------------------------
>
>                 Key: DRILL-2341
>                 URL: https://issues.apache.org/jira/browse/DRILL-2341
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Metadata
>    Affects Versions: 0.8.0
>            Reporter: Victoria Markman
>            Assignee: Venki Korukanti
>             Fix For: 0.9.0
>
>         Attachments: DRILL-2341-1.patch
>
>
> List of fields is not provided, type information is correct.
> {code}
> 0: jdbc:drill:schema=dfs> create view v1 as select cast(a1 as int), cast(b1 as varchar(10)),
cast(c1 as date) from t1;
> +------------+------------+
> |     ok     |  summary   |
> +------------+------------+
> | true       | View 'v1' created successfully in 'dfs.aggregation' schema |
> +------------+------------+
> 1 row selected (0.063 seconds)
> 0: jdbc:drill:schema=dfs> describe v1;
> +-------------+------------+-------------+
> | COLUMN_NAME | DATA_TYPE  | IS_NULLABLE |
> +-------------+------------+-------------+
> | EXPR$0      | INTEGER    | NO          |
> | EXPR$1      | VARCHAR    | NO          |
> | EXPR$2      | DATE       | NO          |
> +-------------+------------+-------------+
> 3 rows selected (0.102 seconds)
> {code}
> List of fields is specified, type information is lost
> {code}
> 0: jdbc:drill:schema=dfs> create view v2(x,y,z) as select cast(a1 as int), cast(b1
as varchar(10)), cast(c1 as date) from t1;
> +------------+------------+
> |     ok     |  summary   |
> +------------+------------+
> | true       | View 'v2' created successfully in 'dfs.aggregation' schema |
> +------------+------------+
> 1 row selected (0.049 seconds)
> 0: jdbc:drill:schema=dfs> describe v2;
> +-------------+------------+-------------+
> | COLUMN_NAME | DATA_TYPE  | IS_NULLABLE |
> +-------------+------------+-------------+
> | x           | ANY        | NO          |
> | y           | ANY        | NO          |
> | z           | ANY        | NO          |
> +-------------+------------+-------------+
> 3 rows selected (0.084 seconds)
> {code}
> View file:
> {code}
> {
>   "name" : "v2",
>   "sql" : "SELECT CAST(`a1` AS INTEGER), CAST(`b1` AS VARCHAR(10)), CAST(`c1` AS DATE)\nFROM
`t1`",
>   "fields" : [ {
>     "name" : "x",
>     "type" : "ANY",
>     "isNullable" : true
>   }, {
>     "name" : "y",
>     "type" : "ANY",
>     "isNullable" : true
>   }, {
>     "name" : "z",
>     "type" : "ANY",
>     "isNullable" : true
>   } ],
>   "workspaceSchemaPath" : [ "dfs", "aggregation" ]
> }
> {code}



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