[
https://issues.apache.org/jira/browse/HIVE-16924?focusedWorklogId=205064&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-205064
]
ASF GitHub Bot logged work on HIVE-16924:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 27/Feb/19 09:12
Start Date: 27/Feb/19 09:12
Worklog Time Spent: 10m
Work Description: kgyrtkirk commented on pull request #544: HIVE-16924
Support distinct in presence of Group By
URL: https://github.com/apache/hive/pull/544#discussion_r260649158
##########
File path: ql/src/test/results/clientpositive/distinct_groupby.q.out
##########
@@ -0,0 +1,1709 @@
+PREHOOK: query: explain select distinct count(value) from src group by key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct count(value) from src group by key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src
+#### A masked pattern was here ####
+STAGE DEPENDENCIES:
+ Stage-1 is a root stage
+ Stage-2 depends on stages: Stage-1
+ Stage-0 depends on stages: Stage-2
+
+STAGE PLANS:
+ Stage: Stage-1
+ Map Reduce
+ Map Operator Tree:
+ TableScan
+ alias: src
+ 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: _col1
+ Statistics: Num rows: 250 Data size: 23750 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ keys: _col1 (type: bigint)
+ mode: hash
+ outputColumnNames: _col0
+ Statistics: Num rows: 125 Data size: 1000 Basic stats: COMPLETE
Column stats: COMPLETE
+ File Output Operator
+ compressed: false
+ table:
+ input format:
org.apache.hadoop.mapred.SequenceFileInputFormat
+ output format:
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
+ serde:
org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe
+
+ Stage: Stage-2
+ Map Reduce
+ Map Operator Tree:
+ TableScan
+ Reduce Output Operator
+ key expressions: _col0 (type: bigint)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: bigint)
+ Statistics: Num rows: 125 Data size: 1000 Basic stats: COMPLETE
Column stats: COMPLETE
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ keys: KEY._col0 (type: bigint)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 125 Data size: 1000 Basic stats: COMPLETE
Column stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 125 Data size: 1000 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(value) from src group by key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct count(value) from src group by key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src
+#### A masked pattern was here ####
+1
+2
+3
+4
+5
+PREHOOK: query: explain select distinct count(*) from src1 where key in
(128,146,150)
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct count(*) from src1 where key in
(128,146,150)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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: src1
+ filterExpr: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 25 Data size: 2150 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ aggregations: count()
+ mode: hash
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ Reduce Output Operator
+ sort order:
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ value expressions: _col0 (type: bigint)
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ aggregations: count(VALUE._col0)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 1 Data size: 8 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(*) from src1 where key in (128,146,150)
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct count(*) from src1 where key in (128,146,150)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+3
+PREHOOK: query: explain select distinct * from (select distinct count(*) from
src1 where key in (128,146,150)) as T
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct * from (select distinct count(*) from
src1 where key in (128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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: src1
+ filterExpr: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 25 Data size: 2150 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ aggregations: count()
+ mode: hash
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ Reduce Output Operator
+ sort order:
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ value expressions: _col0 (type: bigint)
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ aggregations: count(VALUE._col0)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 1 Data size: 8 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 * from (select distinct count(*) from src1
where key in (128,146,150)) as T
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct * from (select distinct count(*) from src1
where key in (128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+3
+PREHOOK: query: explain select distinct count(*)+1 from src1
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct count(*)+1 from src1
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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: src1
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ aggregations: count()
+ mode: hash
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ Reduce Output Operator
+ sort order:
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ value expressions: _col0 (type: bigint)
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ aggregations: count(VALUE._col0)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column
stats: COMPLETE
+ Select Operator
+ expressions: (_col0 + 1L) (type: bigint)
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 1 Data size: 8 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(*)+1 from src1
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct count(*)+1 from src1
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+26
+PREHOOK: query: explain select distinct count(a.value), count(b.value) from
src a join src1 b on a.key=b.key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct count(a.value), count(b.value) from
src a join src1 b on a.key=b.key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+STAGE DEPENDENCIES:
+ Stage-1 is a root stage
+ Stage-2 depends on stages: Stage-1
+ Stage-0 depends on stages: Stage-2
+
+STAGE PLANS:
+ Stage: Stage-1
+ Map Reduce
+ Map Operator Tree:
+ TableScan
+ alias: a
+ filterExpr: key is not null (type: boolean)
+ Statistics: Num rows: 500 Data size: 89000 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: key is not null (type: boolean)
+ Statistics: Num rows: 500 Data size: 89000 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 500 Data size: 89000 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: 500 Data size: 89000 Basic stats:
COMPLETE Column stats: COMPLETE
+ value expressions: _col1 (type: string)
+ TableScan
+ alias: b
+ filterExpr: key is not null (type: boolean)
+ Statistics: Num rows: 25 Data size: 4375 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: key is not null (type: boolean)
+ Statistics: Num rows: 25 Data size: 4375 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 25 Data size: 4375 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: 25 Data size: 4375 Basic stats:
COMPLETE Column stats: COMPLETE
+ value expressions: _col1 (type: string)
+ Reduce Operator Tree:
+ Join Operator
+ condition map:
+ Inner Join 0 to 1
+ keys:
+ 0 _col0 (type: string)
+ 1 _col0 (type: string)
+ outputColumnNames: _col1, _col3
+ Statistics: Num rows: 39 Data size: 7020 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ aggregations: count(_col1), count(_col3)
+ mode: hash
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 1 Data size: 16 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ table:
+ input format:
org.apache.hadoop.mapred.SequenceFileInputFormat
+ output format:
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
+ serde:
org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe
+
+ Stage: Stage-2
+ Map Reduce
+ Map Operator Tree:
+ TableScan
+ Reduce Output Operator
+ sort order:
+ Statistics: Num rows: 1 Data size: 16 Basic stats: COMPLETE
Column stats: COMPLETE
+ value expressions: _col0 (type: bigint), _col1 (type: bigint)
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ aggregations: count(VALUE._col0), count(VALUE._col1)
+ mode: mergepartial
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 1 Data size: 16 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 1 Data size: 16 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), count(b.value) from src a join
src1 b on a.key=b.key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct count(a.value), count(b.value) from src a
join src1 b on a.key=b.key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+37 37
+PREHOOK: query: explain select distinct c from (select distinct key, count(*)
as c from src1 where key in (128,146,150) group by key) a
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct c from (select distinct key, count(*)
as c from src1 where key in (128,146,150) group by key) a
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+STAGE DEPENDENCIES:
+ Stage-1 is a root stage
+ Stage-2 depends on stages: Stage-1
+ Stage-0 depends on stages: Stage-2
+
+STAGE PLANS:
+ Stage: Stage-1
+ Map Reduce
+ Map Operator Tree:
+ TableScan
+ alias: src1
+ filterExpr: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 25 Data size: 2150 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ aggregations: count()
+ keys: key (type: string)
+ mode: hash
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 6 Data size: 564 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: 6 Data size: 564 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: 6 Data size: 564 Basic stats: COMPLETE Column
stats: COMPLETE
+ Select Operator
+ expressions: _col1 (type: bigint)
+ outputColumnNames: _col1
+ Statistics: Num rows: 6 Data size: 564 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ keys: _col1 (type: bigint)
+ mode: hash
+ outputColumnNames: _col0
+ Statistics: Num rows: 3 Data size: 24 Basic stats: COMPLETE
Column stats: COMPLETE
+ File Output Operator
+ compressed: false
+ table:
+ input format:
org.apache.hadoop.mapred.SequenceFileInputFormat
+ output format:
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
+ serde:
org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe
+
+ Stage: Stage-2
+ Map Reduce
+ Map Operator Tree:
+ TableScan
+ Reduce Output Operator
+ key expressions: _col0 (type: bigint)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: bigint)
+ Statistics: Num rows: 3 Data size: 24 Basic stats: COMPLETE
Column stats: COMPLETE
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ keys: KEY._col0 (type: bigint)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 3 Data size: 24 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 3 Data size: 24 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 c from (select distinct key, count(*) as c
from src1 where key in (128,146,150) group by key) a
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct c from (select distinct key, count(*) as c
from src1 where key in (128,146,150) group by key) a
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+1
+PREHOOK: query: explain select distinct key from src1
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct key from src1
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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: src1
+ Statistics: Num rows: 25 Data size: 2150 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ expressions: key (type: string)
+ outputColumnNames: key
+ Statistics: Num rows: 25 Data size: 2150 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ keys: key (type: string)
+ mode: hash
+ outputColumnNames: _col0
+ Statistics: Num rows: 12 Data size: 1032 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: 12 Data size: 1032 Basic stats:
COMPLETE Column stats: COMPLETE
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ keys: KEY._col0 (type: string)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 12 Data size: 1032 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 key from src1
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct key from src1
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+
+128
+146
+150
+213
+224
+238
+255
+273
+278
+311
+369
+401
+406
+66
+98
+PREHOOK: query: explain select distinct * from src1
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct * from src1
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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: src1
+ Statistics: Num rows: 25 Data size: 4375 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: key, value
+ Statistics: Num rows: 25 Data size: 4375 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ keys: key (type: string), value (type: string)
+ mode: hash
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 12 Data size: 2100 Basic stats: COMPLETE
Column stats: COMPLETE
+ Reduce Output Operator
+ key expressions: _col0 (type: string), _col1 (type: string)
+ sort order: ++
+ Map-reduce partition columns: _col0 (type: string), _col1
(type: string)
+ Statistics: Num rows: 12 Data size: 2100 Basic stats:
COMPLETE Column stats: COMPLETE
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ keys: KEY._col0 (type: string), KEY._col1 (type: string)
+ mode: mergepartial
+ outputColumnNames: _col0, _col1
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Column stats: COMPLETE
+ File Output Operator
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Column stats: COMPLETE
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+
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+POSTHOOK: type: QUERY
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Column stats: COMPLETE
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Column stats: COMPLETE
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Column stats: COMPLETE
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stats: COMPLETE
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Column stats: COMPLETE
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+
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Column stats: COMPLETE
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stats: COMPLETE
+ File Output Operator
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+ Statistics: Num rows: 3 Data size: 24 Basic stats: COMPLETE Column
stats: COMPLETE
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Column stats: COMPLETE
+ Filter Operator
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Column stats: COMPLETE
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Column stats: COMPLETE
+ value expressions: _col1 (type: bigint)
+ Execution mode: vectorized
+ Reduce Operator Tree:
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+ keys: KEY._col0 (type: string)
+ mode: mergepartial
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stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 6 Data size: 564 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
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+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
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+ Stage-1 is a root stage
+ Stage-0 depends on stages: Stage-1
+
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Column stats: COMPLETE
+ Select Operator
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+ outputColumnNames: key, value
+ Statistics: Num rows: 25 Data size: 4375 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ keys: key (type: string), value (type: string)
+ mode: hash
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 12 Data size: 2100 Basic stats: COMPLETE
Column stats: COMPLETE
+ Reduce Output Operator
+ key expressions: _col0 (type: string), _col1 (type: string)
+ sort order: ++
+ Map-reduce partition columns: _col0 (type: string), _col1
(type: string)
+ Statistics: Num rows: 12 Data size: 2100 Basic stats:
COMPLETE Column stats: COMPLETE
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ keys: KEY._col0 (type: string), KEY._col1 (type: string)
+ mode: mergepartial
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 12 Data size: 2100 Basic stats: COMPLETE
Column stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 12 Data size: 2100 Basic stats: COMPLETE
Column stats: COMPLETE
+ table:
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+ 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
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+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
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+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct * from (select count(*) from src1) as
T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+STAGE DEPENDENCIES:
+ Stage-0 is a root stage
+
+STAGE PLANS:
+ Stage: Stage-0
+ Fetch Operator
+ limit: 1
+ Processor Tree:
+ ListSink
+
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+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct * from (select count(*) from src1) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
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+PREHOOK: query: explain select distinct * from (select * from src1 where key
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+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct * from (select * from src1 where key
in (128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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
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+ TableScan
+ alias: src1
+ filterExpr: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 25 Data size: 4375 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 12 Data size: 2100 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
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+ mode: hash
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Column stats: COMPLETE
+ Reduce Output Operator
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+ sort order: ++
+ Map-reduce partition columns: _col0 (type: string), _col1
(type: string)
+ Statistics: Num rows: 6 Data size: 1050 Basic stats:
COMPLETE Column stats: COMPLETE
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ keys: KEY._col0 (type: string), KEY._col1 (type: string)
+ mode: mergepartial
+ outputColumnNames: _col0, _col1
+ Statistics: Num rows: 6 Data size: 1050 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 6 Data size: 1050 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 * from (select * from src1 where key in
(128,146,150)) as T
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct * from (select * from src1 where key in
(128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
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+128
+146 val_146
+150 val_150
+PREHOOK: query: explain select distinct key from (select * from src1 where key
in (128,146,150)) as T
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct key from (select * from src1 where
key in (128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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: src1
+ filterExpr: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 25 Data size: 2150 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
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Column stats: COMPLETE
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 6 Data size: 516 Basic stats: COMPLETE
Column stats: COMPLETE
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ keys: KEY._col0 (type: string)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 6 Data size: 516 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 6 Data size: 516 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 key from (select * from src1 where key in
(128,146,150)) as T
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct key from (select * from src1 where key in
(128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+128
+146
+150
+PREHOOK: query: explain select distinct * from (select count(*) from src1
where key in (128,146,150)) as T
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct * from (select count(*) from src1
where key in (128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### 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: src1
+ filterExpr: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 25 Data size: 2150 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: (UDFToDouble(key)) IN (128.0D, 146.0D, 150.0D) (type:
boolean)
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ Statistics: Num rows: 12 Data size: 1032 Basic stats: COMPLETE
Column stats: COMPLETE
+ Group By Operator
+ aggregations: count()
+ mode: hash
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ Reduce Output Operator
+ sort order:
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ value expressions: _col0 (type: bigint)
+ Execution mode: vectorized
+ Reduce Operator Tree:
+ Group By Operator
+ aggregations: count(VALUE._col0)
+ mode: mergepartial
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column
stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 1 Data size: 8 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 * from (select count(*) from src1 where key in
(128,146,150)) as T
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: select distinct * from (select count(*) from src1 where key
in (128,146,150)) as T
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@src1
+#### A masked pattern was here ####
+3
+PREHOOK: query: explain select distinct sum(key) over () from src1
+PREHOOK: type: QUERY
+PREHOOK: Input: default@src1
+#### A masked pattern was here ####
+POSTHOOK: query: explain select distinct sum(key) over () from src1
Review comment:
If you would add the following logic:
* query is *distinct*
* if there are no groupby
* all the selected columns:
* are either windowing aggregates with `over ()`
* or regular aggregates
then:
* remove all `over ()` clauses as they don't change the meaning of the query
then the ptf would be gone from the plan
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Issue Time Tracking
-------------------
Worklog Id: (was: 205064)
Time Spent: 3h 20m (was: 3h 10m)
> Support distinct in presence of Group By
> -----------------------------------------
>
> Key: HIVE-16924
> URL: https://issues.apache.org/jira/browse/HIVE-16924
> Project: Hive
> Issue Type: New Feature
> Components: Query Planning
> Reporter: Carter Shanklin
> Assignee: Miklos Gergely
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-16924.01.patch, HIVE-16924.02.patch,
> HIVE-16924.03.patch, HIVE-16924.04.patch, HIVE-16924.05.patch,
> HIVE-16924.06.patch, HIVE-16924.07.patch, HIVE-16924.08.patch,
> HIVE-16924.09.patch, HIVE-16924.10.patch
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> {code:sql}
> create table e011_01 (c1 int, c2 smallint);
> insert into e011_01 values (1, 1), (2, 2);
> {code}
> These queries should work:
> {code:sql}
> select distinct c1, count(*) from e011_01 group by c1;
> select distinct c1, avg(c2) from e011_01 group by c1;
> {code}
> Currently, you get :
> FAILED: SemanticException 1:52 SELECT DISTINCT and GROUP BY can not be in the
> same query. Error encountered near token 'c1'
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