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From "Steven Phillips (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (DRILL-2033) JSON 'All Text mode' should support schema change from scalar to complex types
Date Tue, 24 Feb 2015 07:35:15 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steven Phillips reassigned DRILL-2033:
--------------------------------------

    Assignee: Steven Phillips

> JSON 'All Text mode' should support schema change from scalar to complex types
> ------------------------------------------------------------------------------
>
>                 Key: DRILL-2033
>                 URL: https://issues.apache.org/jira/browse/DRILL-2033
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Storage - JSON
>            Reporter: Neeraja
>            Assignee: Steven Phillips
>             Fix For: 0.9.0
>
>
> A scalar/simple field turning to complex field is a very common scenario in many JSON
documents.
> For ex: An integer turning into an array of integers , a string turning into a map of
multiple strings .
> Drill currently already provides ability to query the scalar data with datatype changes
by turning all text mode to true.
> This should be expanded it to support querying the scalar-complex type changes as well.
This gives power for the users to look at the data without fixing/modifying JSON upfront.
> Here is a quick example from a public dataset.
> {
>   "data": {
>     "games": {
>       "game": [
>         {
>           "home_runs": {
>             "player": {
>               "first": "Jason"
>             }
>           }
>         },
>         {
>           "home_runs": {
>             "player": [
>               {
>                 "first": "Kosuke"
>               },
>               {
>                 "first": "Alfonso"
>               },
>               {
>                 "first": "Jeff"
>               },
>               {
>                 "first": "Brandon"
>               }
>             ]
>           }
>         }
>       ]
>     }
>   }
> }



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