/tags/release-0.0.0-rc0/hive/external/ql/src/test/results/clientpositive/union2.q.out
text | 106 lines | 99 code | 7 blank | 0 comment | 0 complexity | a84fe11a7dc083868dbb4379517d9af0 MD5 | raw file
Possible License(s): Apache-2.0, BSD-3-Clause, JSON, CPL-1.0
- PREHOOK: query: -- union case: both subqueries are map-reduce jobs on same input, followed by reduce sink
- explain
- select count(1) FROM (select s1.key as key, s1.value as value from src s1 UNION ALL
- select s2.key as key, s2.value as value from src s2) unionsrc
- PREHOOK: type: QUERY
- POSTHOOK: query: -- union case: both subqueries are map-reduce jobs on same input, followed by reduce sink
- explain
- select count(1) FROM (select s1.key as key, s1.value as value from src s1 UNION ALL
- select s2.key as key, s2.value as value from src s2) unionsrc
- POSTHOOK: type: QUERY
- ABSTRACT SYNTAX TREE:
- (TOK_QUERY (TOK_FROM (TOK_SUBQUERY (TOK_UNION (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src) s1)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL s1) key) key) (TOK_SELEXPR (. (TOK_TABLE_OR_COL s1) value) value)))) (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src) s2)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL s2) key) key) (TOK_SELEXPR (. (TOK_TABLE_OR_COL s2) value) value))))) unionsrc)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION count 1)))))
- STAGE DEPENDENCIES:
- Stage-1 is a root stage
- Stage-0 is a root stage
- STAGE PLANS:
- Stage: Stage-1
- Map Reduce
- Alias -> Map Operator Tree:
- null-subquery1:unionsrc-subquery1:s1
- TableScan
- alias: s1
- Select Operator
- expressions:
- expr: key
- type: string
- expr: value
- type: string
- outputColumnNames: _col0, _col1
- Union
- Select Operator
- Group By Operator
- aggregations:
- expr: count(1)
- bucketGroup: false
- mode: hash
- outputColumnNames: _col0
- Reduce Output Operator
- sort order:
- tag: -1
- value expressions:
- expr: _col0
- type: bigint
- null-subquery2:unionsrc-subquery2:s2
- TableScan
- alias: s2
- Select Operator
- expressions:
- expr: key
- type: string
- expr: value
- type: string
- outputColumnNames: _col0, _col1
- Union
- Select Operator
- Group By Operator
- aggregations:
- expr: count(1)
- bucketGroup: false
- mode: hash
- outputColumnNames: _col0
- Reduce Output Operator
- sort order:
- tag: -1
- value expressions:
- expr: _col0
- type: bigint
- Reduce Operator Tree:
- Group By Operator
- aggregations:
- expr: count(VALUE._col0)
- bucketGroup: false
- mode: mergepartial
- outputColumnNames: _col0
- Select Operator
- expressions:
- expr: _col0
- type: bigint
- outputColumnNames: _col0
- 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 count(1) FROM (select s1.key as key, s1.value as value from src s1 UNION ALL
- select s2.key as key, s2.value as value from src s2) unionsrc
- PREHOOK: type: QUERY
- PREHOOK: Input: default@src
- PREHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-50-54_630_1295074456516758667/-mr-10000
- POSTHOOK: query: select count(1) FROM (select s1.key as key, s1.value as value from src s1 UNION ALL
- select s2.key as key, s2.value as value from src s2) unionsrc
- POSTHOOK: type: QUERY
- POSTHOOK: Input: default@src
- POSTHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-50-54_630_1295074456516758667/-mr-10000
- 1000