PREHOOK: query: EXPLAIN SELECT ARRAY(NULL, 0), 
               ARRAY(NULL, ARRAY()),
               ARRAY(NULL, MAP()),
               ARRAY(NULL, STRUCT(0))
        FROM src tablesample (1 rows)
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN SELECT ARRAY(NULL, 0), 
               ARRAY(NULL, ARRAY()),
               ARRAY(NULL, MAP()),
               ARRAY(NULL, STRUCT(0))
        FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Map Operator Tree:
          TableScan
            alias: src
            Row Limit Per Split: 1
            Statistics: Num rows: 0 Data size: 5812 Basic stats: PARTIAL Column stats: COMPLETE
            Select Operator
              expressions: array(null,0) (type: array<int>), array(null,array()) (type: array<array<string>>), array(null,map()) (type: array<map<string,string>>), array(null,struct(0)) (type: array<struct<col1:int>>)
              outputColumnNames: _col0, _col1, _col2, _col3
              Statistics: Num rows: 0 Data size: 5812 Basic stats: PARTIAL Column stats: COMPLETE
              File Output Operator
                compressed: false
                Statistics: Num rows: 0 Data size: 5812 Basic stats: PARTIAL Column stats: COMPLETE
                table:
                    input format: org.apache.hadoop.mapred.TextInputFormat
                    output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
                    serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe

  Stage: Stage-0
    Fetch Operator
      limit: -1

PREHOOK: query: SELECT ARRAY(NULL, 0), 
       ARRAY(NULL, ARRAY()),
       ARRAY(NULL, MAP()),
       ARRAY(NULL, STRUCT(0))
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT ARRAY(NULL, 0), 
       ARRAY(NULL, ARRAY()),
       ARRAY(NULL, MAP()),
       ARRAY(NULL, STRUCT(0))
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
[null,0]	[null,[]]	[null,{}]	[null,{"col1":0}]