[jira] [Created] (DRILL-1634) Drill fails when querying a nested array within a repeated map.

["Jinfeng Ni (JIRA)" <ji...@apache.org>]

Jinfeng Ni created DRILL-1634:
---------------------------------

             Summary: Drill fails when querying a nested array within a repeated map. 
                 Key: DRILL-1634
                 URL: https://issues.apache.org/jira/browse/DRILL-1634
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Jinfeng Ni
            Assignee: Jinfeng Ni


Given the following JSON input data:

{code}
{ "a":[{"b": [["str1","str2"], ["str3", "str4"]]}] }
{ "a":[{"b": [["str10","str20"], ["str30", "str40"]]}] }
{code}

If we want to retrieve the first element in array b, which is the first element in array a, using the following query, Drill will fail with error:

{code}
select t.a[0].b[0] from dfs.`/Users/jni/work/data/json/samplejson.json` t;
{code}

{code}
Query failed: Failure while running fragment., You tried to read a [CopyAsValueVarChar] type when you are using a field reader of type [SingleLikeRepeatedMapReaderImpl]. [ d655b148-5c0e-4293-8472-8ee93d6df801 on adminisorsmbp53:31010 ]
{code}





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