PREHOOK: query: EXPLAIN SELECT ARRAY(NULL, 0), 
               ARRAY(NULL, ARRAY()),
               ARRAY(NULL, MAP()),
               ARRAY(NULL, STRUCT(0))
        FROM src LIMIT 1
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN SELECT ARRAY(NULL, 0), 
               ARRAY(NULL, ARRAY()),
               ARRAY(NULL, MAP()),
               ARRAY(NULL, STRUCT(0))
        FROM src LIMIT 1
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION ARRAY TOK_NULL 0)) (TOK_SELEXPR (TOK_FUNCTION ARRAY TOK_NULL (TOK_FUNCTION ARRAY))) (TOK_SELEXPR (TOK_FUNCTION ARRAY TOK_NULL (TOK_FUNCTION MAP))) (TOK_SELEXPR (TOK_FUNCTION ARRAY TOK_NULL (TOK_FUNCTION STRUCT 0)))) (TOK_LIMIT 1)))

STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Alias -> Map Operator Tree:
        src 
          TableScan
            alias: src
            Select Operator
              expressions:
                    expr: array(null,0)
                    type: array<int>
                    expr: array(null,array())
                    type: array<array<string>>
                    expr: array(null,map())
                    type: array<map<string,string>>
                    expr: array(null,struct(0))
                    type: array<struct<col1:int>>
              outputColumnNames: _col0, _col1, _col2, _col3
              Limit
                File Output Operator
                  compressed: false
                  GlobalTableId: 0
                  table:
                      input format: org.apache.hadoop.mapred.TextInputFormat
                      output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat

  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 LIMIT 1
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 LIMIT 1
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
[null,0]	[null,[]]	[null,{}]	[null,{"col1":0}]