PREHOOK: query: EXPLAIN SELECT src1.key as k1, src1.value as v1, src2.key as k2, src2.value as v2 FROM (SELECT * FROM src WHERE src.key < 10) src1 JOIN (SELECT * FROM src WHERE src.key < 10) src2 SORT BY k1, v1, k2, v2 PREHOOK: type: QUERY POSTHOOK: query: EXPLAIN SELECT src1.key as k1, src1.value as v1, src2.key as k2, src2.value as v2 FROM (SELECT * FROM src WHERE src.key < 10) src1 JOIN (SELECT * FROM src WHERE src.key < 10) src2 SORT BY k1, v1, k2, v2 POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_WHERE (< (. (TOK_TABLE_OR_COL src) key) 10)))) src1) (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_WHERE (< (. (TOK_TABLE_OR_COL src) key) 10)))) src2))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL src1) key) k1) (TOK_SELEXPR (. (TOK_TABLE_OR_COL src1) value) v1) (TOK_SELEXPR (. (TOK_TABLE_OR_COL src2) key) k2) (TOK_SELEXPR (. (TOK_TABLE_OR_COL src2) value) v2)) (TOK_SORTBY (TOK_TABSORTCOLNAMEASC (TOK_TABLE_OR_COL k1)) (TOK_TABSORTCOLNAMEASC (TOK_TABLE_OR_COL v1)) (TOK_TABSORTCOLNAMEASC (TOK_TABLE_OR_COL k2)) (TOK_TABSORTCOLNAMEASC (TOK_TABLE_OR_COL v2))))) 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: src1:src TableScan alias: src Filter Operator predicate: expr: (key < 10) type: boolean Select Operator expressions: expr: key type: string expr: value type: string outputColumnNames: _col0, _col1 Reduce Output Operator sort order: tag: 0 value expressions: expr: _col0 type: string expr: _col1 type: string src2:src TableScan alias: src Filter Operator predicate: expr: (key < 10) type: boolean Select Operator expressions: expr: key type: string expr: value type: string outputColumnNames: _col0, _col1 Reduce Output Operator sort order: tag: 1 value expressions: expr: _col0 type: string expr: _col1 type: string Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} {VALUE._col1} 1 {VALUE._col0} {VALUE._col1} handleSkewJoin: false outputColumnNames: _col0, _col1, _col2, _col3 Select Operator expressions: expr: _col0 type: string expr: _col1 type: string expr: _col2 type: string expr: _col3 type: string outputColumnNames: _col0, _col1, _col2, _col3 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: file:/tmp/sdong/hive_2011-02-10_16-01-47_793_8777845351054616084/-mr-10002 Reduce Output Operator key expressions: expr: _col0 type: string expr: _col1 type: string expr: _col2 type: string expr: _col3 type: string sort order: ++++ tag: -1 value expressions: expr: _col0 type: string expr: _col1 type: string expr: _col2 type: string expr: _col3 type: string Reduce Operator Tree: Extract 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 src1.key as k1, src1.value as v1, src2.key as k2, src2.value as v2 FROM (SELECT * FROM src WHERE src.key < 10) src1 JOIN (SELECT * FROM src WHERE src.key < 10) src2 SORT BY k1, v1, k2, v2 PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Output: file:/tmp/sdong/hive_2011-02-10_16-01-47_898_1006010715784348203/-mr-10000 POSTHOOK: query: SELECT src1.key as k1, src1.value as v1, src2.key as k2, src2.value as v2 FROM (SELECT * FROM src WHERE src.key < 10) src1 JOIN (SELECT * FROM src WHERE src.key < 10) src2 SORT BY k1, v1, k2, v2 POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Output: file:/tmp/sdong/hive_2011-02-10_16-01-47_898_1006010715784348203/-mr-10000 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 0 val_0 2 val_2 0 val_0 2 val_2 0 val_0 2 val_2 0 val_0 4 val_4 0 val_0 4 val_4 0 val_0 4 val_4 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 8 val_8 0 val_0 8 val_8 0 val_0 8 val_8 0 val_0 9 val_9 0 val_0 9 val_9 0 val_0 9 val_9 2 val_2 0 val_0 2 val_2 0 val_0 2 val_2 0 val_0 2 val_2 2 val_2 2 val_2 4 val_4 2 val_2 5 val_5 2 val_2 5 val_5 2 val_2 5 val_5 2 val_2 8 val_8 2 val_2 9 val_9 4 val_4 0 val_0 4 val_4 0 val_0 4 val_4 0 val_0 4 val_4 2 val_2 4 val_4 4 val_4 4 val_4 5 val_5 4 val_4 5 val_5 4 val_4 5 val_5 4 val_4 8 val_8 4 val_4 9 val_9 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 0 val_0 5 val_5 2 val_2 5 val_5 2 val_2 5 val_5 2 val_2 5 val_5 4 val_4 5 val_5 4 val_4 5 val_5 4 val_4 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 5 val_5 8 val_8 5 val_5 8 val_8 5 val_5 8 val_8 5 val_5 9 val_9 5 val_5 9 val_9 5 val_5 9 val_9 8 val_8 0 val_0 8 val_8 0 val_0 8 val_8 0 val_0 8 val_8 2 val_2 8 val_8 4 val_4 8 val_8 5 val_5 8 val_8 5 val_5 8 val_8 5 val_5 8 val_8 8 val_8 8 val_8 9 val_9 9 val_9 0 val_0 9 val_9 0 val_0 9 val_9 0 val_0 9 val_9 2 val_2 9 val_9 4 val_4 9 val_9 5 val_5 9 val_9 5 val_5 9 val_9 5 val_5 9 val_9 8 val_8 9 val_9 9 val_9