In DRILL-4754, I reported that where a field is missing, it is sometimes
replaced with an empty list. This seems very wrong.
The data:
*{'a':3, 'b':[3,2], 'c':'xyz'}{'a':7, 'c':'wxy'}*
*{"a":7, "b":[]}*
Note the missing 'b' value in the second record.
The query:
0: jdbc:drill:> select * from maprfs.ted.`bug.json`;
The result:
0: jdbc:drill:> select * from maprfs.ted.`bug.json`;
*+----+--------+-------+| a | b | c |+----+--------+-------+| 3
| [3,2] | xyz || 7 | [] | wxy || 7 | [] | null
|+----+--------+-------+*
Note the way that 'b' has a non-null value in the second record. Note the
way that 'c' does have a null value in the third record.
