kgyrtkirk commented on a change in pull request #544: HIVE-16924 Support distinct in presence of Group By URL: https://github.com/apache/hive/pull/544#discussion_r260653962
########## File path: ql/src/test/results/clientpositive/distinct_groupby_without_cbo.q.out ########## @@ -0,0 +1,2018 @@ +PREHOOK: query: explain select distinct count(a.value) from src a group by a.key +PREHOOK: type: QUERY +PREHOOK: Input: default@src +#### A masked pattern was here #### +POSTHOOK: query: explain select distinct count(a.value) from src a group by a.key +POSTHOOK: type: QUERY +POSTHOOK: Input: default@src +#### A masked pattern was here #### +STAGE DEPENDENCIES: + Stage-1 is a root stage + Stage-0 depends on stages: Stage-1 + +STAGE PLANS: + Stage: Stage-1 + Map Reduce + Map Operator Tree: + TableScan + alias: a + Statistics: Num rows: 500 Data size: 89000 Basic stats: COMPLETE Column stats: COMPLETE + Select Operator + expressions: key (type: string), value (type: string) + outputColumnNames: key, value + Statistics: Num rows: 500 Data size: 89000 Basic stats: COMPLETE Column stats: COMPLETE + Group By Operator + aggregations: count(value) + keys: key (type: string) + mode: hash + outputColumnNames: _col0, _col1 + Statistics: Num rows: 250 Data size: 23750 Basic stats: COMPLETE Column stats: COMPLETE + Reduce Output Operator + key expressions: _col0 (type: string) + sort order: + + Map-reduce partition columns: _col0 (type: string) + Statistics: Num rows: 250 Data size: 23750 Basic stats: COMPLETE Column stats: COMPLETE + value expressions: _col1 (type: bigint) + Execution mode: vectorized + Reduce Operator Tree: + Group By Operator + aggregations: count(VALUE._col0) + keys: KEY._col0 (type: string) + mode: mergepartial + outputColumnNames: _col0, _col1 + Statistics: Num rows: 250 Data size: 23750 Basic stats: COMPLETE Column stats: COMPLETE + Select Operator + expressions: _col1 (type: bigint) + outputColumnNames: _col0 + Statistics: Num rows: 250 Data size: 2000 Basic stats: COMPLETE Column stats: COMPLETE + File Output Operator + compressed: false + Statistics: Num rows: 250 Data size: 2000 Basic stats: COMPLETE Column stats: COMPLETE + table: + input format: org.apache.hadoop.mapred.SequenceFileInputFormat + output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat + serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe + + Stage: Stage-0 + Fetch Operator + limit: -1 + Processor Tree: + ListSink + +PREHOOK: query: select distinct count(a.value) from src a group by a.key +PREHOOK: type: QUERY +PREHOOK: Input: default@src +#### A masked pattern was here #### +POSTHOOK: query: select distinct count(a.value) from src a group by a.key +POSTHOOK: type: QUERY +POSTHOOK: Input: default@src +#### A masked pattern was here #### +3 +1 +2 +2 +2 +1 Review comment: this resultset is not distinct; I guess we have an issue with the non-cbo path ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
