PREHOOK: query: -- This query has a GroupByOperator folling JoinOperator and they share the same keys. -- When Correlation Optimizer is turned off, three MR jobs will be generated. -- When Correlation Optimizer is turned on, two MR jobs will be generated -- and JoinOperator (on the column of key) and GroupByOperator (also on the column -- of key) will be executed in the first MR job. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- This query has a GroupByOperator folling JoinOperator and they share the same keys. -- When Correlation Optimizer is turned off, three MR jobs will be generated. -- When Correlation Optimizer is turned on, two MR jobs will be generated -- and JoinOperator (on the column of key) and GroupByOperator (also on the column -- of key) will be executed in the first MR job. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 37 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Demux Operator Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Mux Operator Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: complete outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 37 PREHOOK: query: -- Enable hive.auto.convert.join. -- Correlation Optimizer will detect that the join will be converted to a Map-join, -- so it will not try to optimize this query. -- We should generate 1 MR job for subquery tmp. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- Enable hive.auto.convert.join. -- Correlation Optimizer will detect that the join will be converted to a Map-join, -- so it will not try to optimize this query. -- We should generate 1 MR job for subquery tmp. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-6 is a root stage Stage-2 depends on stages: Stage-6 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-6 Map Reduce Local Work Alias -> Map Local Tables: tmp:x Fetch Operator limit: -1 Alias -> Map Local Operator Tree: tmp:x TableScan alias: x HashTable Sink Operator condition expressions: 0 {key} 1 handleSkewJoin: false keys: 0 [Column[key]] 1 [Column[key]] Position of Big Table: 1 Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: tmp:y TableScan alias: y Map Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {key} 1 handleSkewJoin: false keys: 0 [Column[key]] 1 [Column[key]] outputColumnNames: _col0 Position of Big Table: 1 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Local Work: Map Reduce Local Work Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 37 PREHOOK: query: -- If the key of a GroupByOperator is the left table's key in -- a Left Semi Join, these two operators will be executed in -- the same MR job when Correlation Optimizer is enabled. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- If the key of a GroupByOperator is the left table's key in -- a Left Semi Join, these two operators will be executed in -- the same MR job when Correlation Optimizer is enabled. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_LEFTSEMIJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Select Operator expressions: expr: key type: string outputColumnNames: key Group By Operator bucketGroup: false keys: expr: key type: string mode: hash outputColumnNames: _col0 Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Left Semi Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 15 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_LEFTSEMIJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Select Operator expressions: expr: key type: string outputColumnNames: key Group By Operator bucketGroup: false keys: expr: key type: string mode: hash outputColumnNames: _col0 Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: 1 Reduce Operator Tree: Demux Operator Join Operator condition map: Left Semi Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Mux Operator Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: complete outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT SEMI JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 15 PREHOOK: query: -- If the key of a GroupByOperator is the left table's key in -- a Left Outer Join, these two operators will be executed in -- the same MR job when Correlation Optimizer is enabled. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- If the key of a GroupByOperator is the left table's key in -- a Left Outer Join, these two operators will be executed in -- the same MR job when Correlation Optimizer is enabled. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_LEFTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Left Outer Join0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 47 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_LEFTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Demux Operator Join Operator condition map: Left Outer Join0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Mux Operator Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: complete outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 47 PREHOOK: query: -- If the key of a GroupByOperator is the right table's key in -- a Left Outer Join, we cannot use a single MR to execute these two -- operators because those keys with a null value are not grouped. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- If the key of a GroupByOperator is the right table's key in -- a Left Outer Join, we cannot use a single MR to execute these two -- operators because those keys with a null value are not grouped. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_LEFTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL y) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 value expressions: expr: key type: string Reduce Operator Tree: Join Operator condition map: Left Outer Join0 to 1 condition expressions: 0 1 {VALUE._col0} handleSkewJoin: false outputColumnNames: _col4 Select Operator expressions: expr: _col4 type: string outputColumnNames: _col4 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col4 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 47 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_LEFTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL y) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 value expressions: expr: key type: string Reduce Operator Tree: Join Operator condition map: Left Outer Join0 to 1 condition expressions: 0 1 {VALUE._col0} handleSkewJoin: false outputColumnNames: _col4 Select Operator expressions: expr: _col4 type: string outputColumnNames: _col4 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col4 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x LEFT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 47 PREHOOK: query: -- If the key of a GroupByOperator is the right table's key in -- a Right Outer Join, these two operators will be executed in -- the same MR job when Correlation Optimizer is enabled. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- If the key of a GroupByOperator is the right table's key in -- a Right Outer Join, these two operators will be executed in -- the same MR job when Correlation Optimizer is enabled. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_RIGHTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL y) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 value expressions: expr: key type: string Reduce Operator Tree: Join Operator condition map: Right Outer Join0 to 1 condition expressions: 0 1 {VALUE._col0} handleSkewJoin: false outputColumnNames: _col4 Select Operator expressions: expr: _col4 type: string outputColumnNames: _col4 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col4 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 12744278 500 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_RIGHTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL y) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string Reduce Operator Tree: Demux Operator Join Operator condition map: Right Outer Join0 to 1 condition expressions: 0 1 {VALUE._col0} handleSkewJoin: false outputColumnNames: _col4 Select Operator expressions: expr: _col4 type: string outputColumnNames: _col4 Mux Operator Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col4 type: string mode: complete outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT y.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY y.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 12744278 500 PREHOOK: query: -- If the key of a GroupByOperator is the left table's key in -- a Right Outer Join, we cannot use a single MR to execute these two -- operators because those keys with a null value are not grouped. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- If the key of a GroupByOperator is the left table's key in -- a Right Outer Join, we cannot use a single MR to execute these two -- operators because those keys with a null value are not grouped. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_RIGHTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Right Outer Join0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 500 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_RIGHTOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Right Outer Join0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x RIGHT OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 500 PREHOOK: query: -- This query has a Full Outer Join followed by a GroupByOperator and -- they share the same key. Because those keys with a null value are not grouped -- in the output of the Full Outer Join, we cannot use a single MR to execute -- these two operators. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- This query has a Full Outer Join followed by a GroupByOperator and -- they share the same key. Because those keys with a null value are not grouped -- in the output of the Full Outer Join, we cannot use a single MR to execute -- these two operators. EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_FULLOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Outer Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 510 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_FULLOUTERJOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Outer Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x FULL OUTER JOIN src y ON (x.key = y.key) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 510 PREHOOK: query: -- Currently, we only handle exactly same keys, this query will not be optimized EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp PREHOOK: type: QUERY POSTHOOK: query: -- Currently, we only handle exactly same keys, this query will not be optimized EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) value) value) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL x) value)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) value)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string expr: value type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} {VALUE._col1} 1 handleSkewJoin: false outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: string outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string expr: _col1 type: string mode: hash outputColumnNames: _col0, _col1, _col2 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string expr: _col1 type: string sort order: ++ Map-reduce partition columns: expr: _col0 type: string expr: _col1 type: string tag: -1 value expressions: expr: _col2 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string expr: KEY._col1 type: string mode: mergepartial outputColumnNames: _col0, _col1, _col2 Select Operator expressions: expr: _col0 type: string expr: _col1 type: string expr: _col2 type: bigint outputColumnNames: _col0, _col1, _col2 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) expr: sum(hash(_col2)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1, _col2 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint expr: _col2 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) expr: sum(VALUE._col2) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1, _col2 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint expr: _col2 type: bigint outputColumnNames: _col0, _col1, _col2 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 661329102 37 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) value) value) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL x) value)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) value)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string expr: value type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} {VALUE._col1} 1 handleSkewJoin: false outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: string outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string expr: _col1 type: string mode: hash outputColumnNames: _col0, _col1, _col2 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string expr: _col1 type: string sort order: ++ Map-reduce partition columns: expr: _col0 type: string expr: _col1 type: string tag: -1 value expressions: expr: _col2 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string expr: KEY._col1 type: string mode: mergepartial outputColumnNames: _col0, _col1, _col2 Select Operator expressions: expr: _col0 type: string expr: _col1 type: string expr: _col2 type: bigint outputColumnNames: _col0, _col1, _col2 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) expr: sum(hash(_col2)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1, _col2 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint expr: _col2 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) expr: sum(VALUE._col2) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1, _col2 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint expr: _col2 type: bigint outputColumnNames: _col0, _col1, _col2 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.value)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, x.value AS value, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key) GROUP BY x.key, x.value) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 652447 661329102 37 PREHOOK: query: -- Currently, we only handle exactly same keys, this query will not be optimized EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: -- Currently, we only handle exactly same keys, this query will not be optimized EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (AND (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)) (= (. (TOK_TABLE_OR_COL x) value) (. (TOK_TABLE_OR_COL y) value))))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string expr: value type: string sort order: ++ Map-reduce partition columns: expr: key type: string expr: value type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string expr: value type: string sort order: ++ Map-reduce partition columns: expr: key type: string expr: value type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 503358 29 PREHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (AND (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)) (= (. (TOK_TABLE_OR_COL x) value) (. (TOK_TABLE_OR_COL y) value))))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) tmp)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) key)))) (TOK_SELEXPR (TOK_FUNCTION SUM (TOK_FUNCTION HASH (. (TOK_TABLE_OR_COL tmp) cnt))))))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1 Stage-3 depends on stages: Stage-2 Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: tmp:x TableScan alias: x Reduce Output Operator key expressions: expr: key type: string expr: value type: string sort order: ++ Map-reduce partition columns: expr: key type: string expr: value type: string tag: 0 value expressions: expr: key type: string tmp:y TableScan alias: y Reduce Output Operator key expressions: expr: key type: string expr: value type: string sort order: ++ Map-reduce partition columns: expr: key type: string expr: value type: string tag: 1 Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 handleSkewJoin: false outputColumnNames: _col0 Select Operator expressions: expr: _col0 type: string outputColumnNames: _col0 Group By Operator aggregations: expr: count(1) bucketGroup: false keys: expr: _col0 type: string mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator key expressions: expr: _col0 type: string sort order: + Map-reduce partition columns: expr: _col0 type: string tag: -1 value expressions: expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: count(VALUE._col0) bucketGroup: false keys: expr: KEY._col0 type: string mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: bigint outputColumnNames: _col0, _col1 Group By Operator aggregations: expr: sum(hash(_col0)) expr: sum(hash(_col1)) bucketGroup: false mode: hash outputColumnNames: _col0, _col1 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-3 Map Reduce Alias -> Map Operator Tree: #### A masked pattern was here #### Reduce Output Operator sort order: tag: -1 value expressions: expr: _col0 type: bigint expr: _col1 type: bigint Reduce Operator Tree: Group By Operator aggregations: expr: sum(VALUE._col0) expr: sum(VALUE._col1) bucketGroup: false mode: mergepartial outputColumnNames: _col0, _col1 Select Operator expressions: expr: _col0 type: bigint expr: _col1 type: bigint outputColumnNames: _col0, _col1 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 SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@src1 #### A masked pattern was here #### POSTHOOK: query: SELECT SUM(HASH(tmp.key)), SUM(HASH(tmp.cnt)) FROM (SELECT x.key AS key, count(1) AS cnt FROM src1 x JOIN src y ON (x.key = y.key AND x.value = y.value) GROUP BY x.key) tmp POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@src1 #### A masked pattern was here #### 503358 29