[jira] [Created] (DRILL-1997) Hive generated parquet files with maps containing strings return wrong value

["Ramana Inukonda Nagaraj (JIRA)" <ji...@apache.org>]

Ramana Inukonda Nagaraj created DRILL-1997:
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             Summary: Hive generated parquet files with maps containing strings return wrong value
                 Key: DRILL-1997
                 URL: https://issues.apache.org/jira/browse/DRILL-1997
             Project: Apache Drill
          Issue Type: Bug
          Components: Storage - Parquet
            Reporter: Ramana Inukonda Nagaraj
            Assignee: Parth Chandra
            Priority: Critical


Created a parquet file in hive having the following DDL
hive> desc alltypesparquet;          
OK
c1                  	int                 	                    
c2                  	boolean             	                    
c3                  	double              	                    
c4                  	string              	                    
c5                  	array<int>          	                    
c6                  	map<int,string>     	                    
c7                  	map<string,string>  	                    
c8                  	struct<r:string,s:int,t:double>	                    
c9                  	tinyint             	                    
c10                 	smallint            	                    
c11                 	float               	                    
c12                 	bigint              	                    
c13                 	array<array<string>>	                    
c15                 	struct<r:int,s:struct<a:int,b:string>>	                    
c16                 	array<struct<m:map<string,string>,n:int>>	                    
Time taken: 0.076 seconds, Fetched: 15 row(s)

All the complex types with string in them are returning incorrect values in drill. For example:

hive> select c6 from alltypesparquet;
NULL
NULL
{1:"x",2:"y"}

0: jdbc:drill:> select c6 from `/user/hive/warehouse/alltypesparquet`;
+------------+
|     c6     |
+------------+
| {"map":[]} |
| {"map":[]} |
| {"map":[{"key":1,"value":"eA=="},{"key":2,"value":"eQ=="}]} |
+------------+
3 rows selected (0.077 seconds)




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