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https://issues.apache.org/jira/browse/HIVE-17414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16149097#comment-16149097
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Sahil Takiar commented on HIVE-17414:
-------------------------------------
Looks like {{SparkUtilities#collectOp}} is also used in {{SplitOpTreeForDPP}},
but since the {{Vectorizer}} runs after {{SplitOpTreeForDPP}} I guess it
doesn't make a difference, since no {{VectorSparkPartitionPruningSinkOperator}}
exists in the tree.
LGTM +1
> HoS DPP + Vectorization generates invalid explain plan due to
> CombineEquivalentWorkResolver
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-17414
> URL: https://issues.apache.org/jira/browse/HIVE-17414
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Sahil Takiar
> Assignee: liyunzhang_intel
> Attachments: HIVE-17414.1.patch, HIVE-17414.patch
>
>
> Similar to HIVE-16948, the following query generates an invalid explain plan
> when HoS DPP is enabled + vectorization:
> {code:sql}
> select ds from (select distinct(ds) as ds from srcpart union all select
> distinct(ds) as ds from srcpart) s where s.ds in (select max(srcpart.ds) from
> srcpart union all select min(srcpart.ds) from srcpart)
> {code}
> Explain Plan:
> {code}
> STAGE DEPENDENCIES:
> Stage-2 is a root stage
> Stage-1 depends on stages: Stage-2
> Stage-0 depends on stages: Stage-1
> STAGE PLANS:
> Stage: Stage-2
> Spark
> Edges:
> Reducer 11 <- Map 10 (GROUP, 1)
> Reducer 13 <- Map 12 (GROUP, 1)
> #### A masked pattern was here ####
> Vertices:
> Map 10
> Map Operator Tree:
> TableScan
> alias: srcpart
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Select Operator
> expressions: ds (type: string)
> outputColumnNames: ds
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> aggregations: max(ds)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> sort order:
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> value expressions: _col0 (type: string)
> Execution mode: vectorized
> Map 12
> Map Operator Tree:
> TableScan
> alias: srcpart
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Select Operator
> expressions: ds (type: string)
> outputColumnNames: ds
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> aggregations: min(ds)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> sort order:
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> value expressions: _col0 (type: string)
> Execution mode: vectorized
> Reducer 11
> Execution mode: vectorized
> Reduce Operator Tree:
> Group By Operator
> aggregations: max(VALUE._col0)
> mode: mergepartial
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats: COMPLETE
> Column stats: NONE
> Filter Operator
> predicate: _col0 is not null (type: boolean)
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Select Operator
> expressions: _col0 (type: string)
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Spark Partition Pruning Sink Operator
> Target column: ds (string)
> partition key expr: ds
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> target work: Map 1
> Select Operator
> expressions: _col0 (type: string)
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Spark Partition Pruning Sink Operator
> Target column: ds (string)
> partition key expr: ds
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> target work: Map 4
> Reducer 13
> Execution mode: vectorized
> Reduce Operator Tree:
> Group By Operator
> aggregations: min(VALUE._col0)
> mode: mergepartial
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats: COMPLETE
> Column stats: NONE
> Filter Operator
> predicate: _col0 is not null (type: boolean)
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Select Operator
> expressions: _col0 (type: string)
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Spark Partition Pruning Sink Operator
> Target column: ds (string)
> partition key expr: ds
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> target work: Map 1
> Select Operator
> expressions: _col0 (type: string)
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Spark Partition Pruning Sink Operator
> Target column: ds (string)
> partition key expr: ds
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> target work: Map 4
> Stage: Stage-1
> Spark
> Edges:
> Reducer 2 <- Map 1 (GROUP, 4)
> Reducer 3 <- Reducer 2 (PARTITION-LEVEL SORT, 4), Reducer 2
> (PARTITION-LEVEL SORT, 4), Reducer 7 (PARTITION-LEVEL SORT, 4), Reducer 9
> (PARTITION-LEVEL SORT, 4)
> Reducer 7 <- Map 6 (GROUP, 1)
> Reducer 9 <- Map 8 (GROUP, 1)
> #### A masked pattern was here ####
> Vertices:
> Map 1
> Map Operator Tree:
> TableScan
> alias: srcpart
> filterExpr: ds is not null (type: boolean)
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: ds (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> key expressions: _col0 (type: string)
> sort order: +
> Map-reduce partition columns: _col0 (type: string)
> Statistics: Num rows: 2000 Data size: 21248 Basic
> stats: COMPLETE Column stats: NONE
> Execution mode: vectorized
> Map 6
> Map Operator Tree:
> TableScan
> alias: srcpart
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Select Operator
> expressions: ds (type: string)
> outputColumnNames: ds
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> aggregations: max(ds)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> sort order:
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> value expressions: _col0 (type: string)
> Execution mode: vectorized
> Map 8
> Map Operator Tree:
> TableScan
> alias: srcpart
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Select Operator
> expressions: ds (type: string)
> outputColumnNames: ds
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> aggregations: min(ds)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> sort order:
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> value expressions: _col0 (type: string)
> Execution mode: vectorized
> Reducer 2
> Execution mode: vectorized
> Reduce Operator Tree:
> Group By Operator
> keys: KEY._col0 (type: string)
> mode: mergepartial
> outputColumnNames: _col0
> Statistics: Num rows: 1000 Data size: 10624 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> key expressions: _col0 (type: string)
> sort order: +
> Map-reduce partition columns: _col0 (type: string)
> Statistics: Num rows: 2000 Data size: 21248 Basic stats:
> COMPLETE Column stats: NONE
> Reducer 3
> Reduce Operator Tree:
> Join Operator
> condition map:
> Left Semi Join 0 to 1
> keys:
> 0 _col0 (type: string)
> 1 _col0 (type: string)
> outputColumnNames: _col0
> Statistics: Num rows: 2200 Data size: 23372 Basic stats:
> COMPLETE Column stats: NONE
> File Output Operator
> compressed: false
> Statistics: Num rows: 2200 Data size: 23372 Basic stats:
> COMPLETE Column stats: NONE
> 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
> Reducer 7
> Execution mode: vectorized
> Reduce Operator Tree:
> Group By Operator
> aggregations: max(VALUE._col0)
> mode: mergepartial
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats: COMPLETE
> Column stats: NONE
> Filter Operator
> predicate: _col0 is not null (type: boolean)
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> key expressions: _col0 (type: string)
> sort order: +
> Map-reduce partition columns: _col0 (type: string)
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Reducer 9
> Execution mode: vectorized
> Reduce Operator Tree:
> Group By Operator
> aggregations: min(VALUE._col0)
> mode: mergepartial
> outputColumnNames: _col0
> Statistics: Num rows: 1 Data size: 184 Basic stats: COMPLETE
> Column stats: NONE
> Filter Operator
> predicate: _col0 is not null (type: boolean)
> Statistics: Num rows: 1 Data size: 184 Basic stats:
> COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: string)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Reduce Output Operator
> key expressions: _col0 (type: string)
> sort order: +
> Map-reduce partition columns: _col0 (type: string)
> Statistics: Num rows: 2 Data size: 368 Basic stats:
> COMPLETE Column stats: NONE
> Stage: Stage-0
> Fetch Operator
> limit: -1
> Processor Tree:
> ListSink
> {code}
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