PREHOOK: query: -- explain plan json:  the query gets the formatted json output of the query plan of the hive query

-- JAVA_VERSION_SPECIFIC_OUTPUT

EXPLAIN FORMATTED SELECT count(1) FROM src
PREHOOK: type: QUERY
POSTHOOK: query: -- explain plan json:  the query gets the formatted json output of the query plan of the hive query

-- JAVA_VERSION_SPECIFIC_OUTPUT

EXPLAIN FORMATTED SELECT count(1) FROM src
POSTHOOK: type: QUERY
{"STAGE PLANS":{"Stage-1":{"Map Reduce":{"Reduce Operator Tree:":{"Group By Operator":{"mode:":"mergepartial","aggregations:":["count(VALUE._col0)"],"outputColumnNames:":["_col0"],"children":{"Select Operator":{"expressions:":"_col0 (type: bigint)","outputColumnNames:":["_col0"],"children":{"File Output Operator":{"Statistics:":"Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE","compressed:":"false","table:":{"serde:":"org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe","input format:":"org.apache.hadoop.mapred.TextInputFormat","output format:":"org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat"}}},"Statistics:":"Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE"}},"Statistics:":"Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE"}},"Map Operator Tree:":[{"TableScan":{"alias:":"src","children":{"Select Operator":{"children":{"Group By Operator":{"mode:":"hash","aggregations:":["count(1)"],"outputColumnNames:":["_col0"],"children":{"Reduce Output Operator":{"sort order:":"","value expressions:":"_col0 (type: bigint)","Statistics:":"Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE"}},"Statistics:":"Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE"}},"Statistics:":"Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE"}},"Statistics:":"Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE"}}]}},"Stage-0":{"Fetch Operator":{"limit:":"-1","Processor Tree:":{"ListSink":{}}}}},"STAGE DEPENDENCIES":{"Stage-1":{"ROOT STAGE":"TRUE"},"Stage-0":{"DEPENDENT STAGES":"Stage-1"}}}