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https://issues.apache.org/jira/browse/HIVE-8769?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pengcheng Xiong updated HIVE-8769:
----------------------------------
Attachment: HIVE-8769.04.patch
address review comments.
> Physical optimizer : Incorrect CE results in a shuffle join instead of a Map
> join (PK/FK pattern not detected)
> --------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-8769
> URL: https://issues.apache.org/jira/browse/HIVE-8769
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Affects Versions: 0.14.0
> Reporter: Mostafa Mokhtar
> Assignee: Pengcheng Xiong
> Attachments: HIVE-8769.01.patch, HIVE-8769.02.patch,
> HIVE-8769.03.patch, HIVE-8769.04.patch
>
>
> TPC-DS Q82 is running slower than hive 13 because the join type is not
> correct.
> The estimate for item x inventory x date_dim is 227 Million rows while the
> actual is 3K rows.
> Hive 13 finishes in 753 seconds.
> Hive 14 finishes in 1,267 seconds.
> Hive 14 + force map join finished in 431 seconds.
> Query
> {code}
> select i_item_id
> ,i_item_desc
> ,i_current_price
> from item, inventory, date_dim, store_sales
> where i_current_price between 30 and 30+30
> and inv_item_sk = i_item_sk
> and d_date_sk=inv_date_sk
> and d_date between '2002-05-30' and '2002-07-30'
> and i_manufact_id in (437,129,727,663)
> and inv_quantity_on_hand between 100 and 500
> and ss_item_sk = i_item_sk
> group by i_item_id,i_item_desc,i_current_price
> order by i_item_id
> limit 100
> {code}
> Plan
> {code}
> STAGE PLANS:
> Stage: Stage-1
> Tez
> Edges:
> Map 7 <- Map 1 (BROADCAST_EDGE), Map 2 (BROADCAST_EDGE)
> Reducer 4 <- Map 3 (SIMPLE_EDGE), Map 7 (SIMPLE_EDGE)
> Reducer 5 <- Reducer 4 (SIMPLE_EDGE)
> Reducer 6 <- Reducer 5 (SIMPLE_EDGE)
> DagName: mmokhtar_20141106005353_7a2eb8df-12ff-4fe9-89b4-30f1e4e3fb90:1
> Vertices:
> Map 1
> Map Operator Tree:
> TableScan
> alias: item
> filterExpr: ((i_current_price BETWEEN 30 AND 60 and
> (i_manufact_id) IN (437, 129, 727, 663)) and i_item_sk is not null) (type:
> boolean)
> Statistics: Num rows: 462000 Data size: 663862160 Basic
> stats: COMPLETE Column stats: COMPLETE
> Filter Operator
> predicate: ((i_current_price BETWEEN 30 AND 60 and
> (i_manufact_id) IN (437, 129, 727, 663)) and i_item_sk is not null) (type:
> boolean)
> Statistics: Num rows: 115500 Data size: 34185680 Basic
> stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: i_item_sk (type: int), i_item_id (type:
> string), i_item_desc (type: string), i_current_price (type: float)
> outputColumnNames: _col0, _col1, _col2, _col3
> Statistics: Num rows: 115500 Data size: 33724832 Basic
> stats: COMPLETE Column stats: COMPLETE
> Reduce Output Operator
> key expressions: _col0 (type: int)
> sort order: +
> Map-reduce partition columns: _col0 (type: int)
> Statistics: Num rows: 115500 Data size: 33724832
> Basic stats: COMPLETE Column stats: COMPLETE
> value expressions: _col1 (type: string), _col2 (type:
> string), _col3 (type: float)
> Execution mode: vectorized
> Map 2
> Map Operator Tree:
> TableScan
> alias: date_dim
> filterExpr: (d_date BETWEEN '2002-05-30' AND '2002-07-30'
> and d_date_sk is not null) (type: boolean)
> Statistics: Num rows: 73049 Data size: 81741831 Basic
> stats: COMPLETE Column stats: COMPLETE
> Filter Operator
> predicate: (d_date BETWEEN '2002-05-30' AND '2002-07-30'
> and d_date_sk is not null) (type: boolean)
> Statistics: Num rows: 36524 Data size: 3579352 Basic
> stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: d_date_sk (type: int)
> outputColumnNames: _col0
> Statistics: Num rows: 36524 Data size: 146096 Basic
> stats: COMPLETE Column stats: COMPLETE
> Reduce Output Operator
> key expressions: _col0 (type: int)
> sort order: +
> Map-reduce partition columns: _col0 (type: int)
> Statistics: Num rows: 36524 Data size: 146096 Basic
> stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: _col0 (type: int)
> outputColumnNames: _col0
> Statistics: Num rows: 36524 Data size: 146096 Basic
> stats: COMPLETE Column stats: COMPLETE
> Group By Operator
> keys: _col0 (type: int)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 18262 Data size: 73048 Basic
> stats: COMPLETE Column stats: COMPLETE
> Dynamic Partitioning Event Operator
> Target Input: inventory
> Partition key expr: inv_date_sk
> Statistics: Num rows: 18262 Data size: 73048
> Basic stats: COMPLETE Column stats: COMPLETE
> Target column: inv_date_sk
> Target Vertex: Map 7
> Execution mode: vectorized
> Map 3
> Map Operator Tree:
> TableScan
> alias: store_sales
> filterExpr: ss_item_sk is not null (type: boolean)
> Statistics: Num rows: 82510879939 Data size: 6873789738208
> Basic stats: COMPLETE Column stats: COMPLETE
> Filter Operator
> predicate: ss_item_sk is not null (type: boolean)
> Statistics: Num rows: 82510879939 Data size: 330043519756
> Basic stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: ss_item_sk (type: int)
> outputColumnNames: _col0
> Statistics: Num rows: 82510879939 Data size:
> 330043519756 Basic stats: COMPLETE Column stats: COMPLETE
> Reduce Output Operator
> key expressions: _col0 (type: int)
> sort order: +
> Map-reduce partition columns: _col0 (type: int)
> Statistics: Num rows: 82510879939 Data size:
> 330043519756 Basic stats: COMPLETE Column stats: COMPLETE
> Execution mode: vectorized
> Map 7
> Map Operator Tree:
> TableScan
> alias: inventory
> filterExpr: (inv_quantity_on_hand BETWEEN 100 AND 500 and
> inv_item_sk is not null) (type: boolean)
> Statistics: Num rows: 1,627,857,000 Data size: 19208695084
> Basic stats: COMPLETE Column stats: COMPLETE
> Filter Operator
> predicate: (inv_quantity_on_hand BETWEEN 100 AND 500 and
> inv_item_sk is not null) (type: boolean)
> Statistics: Num rows: 813,928,500 Data size: 9604347540
> Basic stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: inv_item_sk (type: int), inv_date_sk
> (type: int)
> outputColumnNames: _col0, _col2
> Statistics: Num rows: 813,928,500 Data size: 6511428000
> Basic stats: COMPLETE Column stats: COMPLETE
> Map Join Operator
> condition map:
> Inner Join 0 to 1
> condition expressions:
> 0 {_col2}
> 1 {_col0} {_col1} {_col2} {_col3}
> keys:
> 0 _col0 (type: int)
> 1 _col0 (type: int)
> outputColumnNames: _col2, _col3, _col4, _col5, _col6
> input vertices:
> 1 Map 1
> Statistics: Num rows: 203,482,128 Data size:
> 59416781376 Basic stats: COMPLETE Column stats: COMPLETE
> Map Join Operator
> condition map:
> Inner Join 0 to 1
> condition expressions:
> 0 {_col3} {_col4} {_col5} {_col6}
> 1
> keys:
> 0 _col2 (type: int)
> 1 _col0 (type: int)
> outputColumnNames: _col3, _col4, _col5, _col6
> input vertices:
> 1 Map 2
> Statistics: Num rows: 227,514,273 Data size:
> 66434167716 Basic stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: _col3 (type: int), _col4 (type:
> string), _col5 (type: string), _col6 (type: float)
> outputColumnNames: _col3, _col4, _col5, _col6
> Statistics: Num rows: 227514273 Data size:
> 66434167716 Basic stats: COMPLETE Column stats: COMPLETE
> Reduce Output Operator
> key expressions: _col3 (type: int)
> sort order: +
> Map-reduce partition columns: _col3 (type: int)
> Statistics: Num rows: 227514273 Data size:
> 66434167716 Basic stats: COMPLETE Column stats: COMPLETE
> value expressions: _col4 (type: string), _col5
> (type: string), _col6 (type: float)
> Execution mode: vectorized
> Reducer 4
> Reduce Operator Tree:
> Merge Join Operator
> condition map:
> Inner Join 0 to 1
> condition expressions:
> 0
> 1 {VALUE._col3} {VALUE._col4} {VALUE._col5}
> outputColumnNames: _col5, _col6, _col7
> Statistics: Num rows: 5156859392 Data size: 1485175504896
> Basic stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: _col5 (type: string), _col6 (type: string),
> _col7 (type: float)
> outputColumnNames: _col0, _col1, _col2
> Statistics: Num rows: 5156859392 Data size: 1485175504896
> Basic stats: COMPLETE Column stats: COMPLETE
> Group By Operator
> keys: _col0 (type: string), _col1 (type: string), _col2
> (type: float)
> mode: hash
> outputColumnNames: _col0, _col1, _col2
> Statistics: Num rows: 5156859392 Data size: 1485175504896
> Basic stats: COMPLETE Column stats: COMPLETE
> Reduce Output Operator
> key expressions: _col0 (type: string), _col1 (type:
> string), _col2 (type: float)
> sort order: +++
> Map-reduce partition columns: _col0 (type: string),
> _col1 (type: string), _col2 (type: float)
> Statistics: Num rows: 5156859392 Data size:
> 1485175504896 Basic stats: COMPLETE Column stats: COMPLETE
> Reducer 5
> Reduce Operator Tree:
> Group By Operator
> keys: KEY._col0 (type: string), KEY._col1 (type: string),
> KEY._col2 (type: float)
> mode: mergepartial
> outputColumnNames: _col0, _col1, _col2
> Statistics: Num rows: 5156859392 Data size: 1485175504896
> Basic stats: COMPLETE Column stats: COMPLETE
> Select Operator
> expressions: _col0 (type: string), _col1 (type: string),
> _col2 (type: float)
> outputColumnNames: _col0, _col1, _col2
> Statistics: Num rows: 5156859392 Data size: 1485175504896
> Basic stats: COMPLETE Column stats: COMPLETE
> Reduce Output Operator
> key expressions: _col0 (type: string)
> sort order: +
> Statistics: Num rows: 5156859392 Data size: 1485175504896
> Basic stats: COMPLETE Column stats: COMPLETE
> TopN Hash Memory Usage: 0.04
> value expressions: _col1 (type: string), _col2 (type:
> float)
> Execution mode: vectorized
> Reducer 6
> Reduce Operator Tree:
> Select Operator
> expressions: KEY.reducesinkkey0 (type: string), VALUE._col0
> (type: string), VALUE._col1 (type: float)
> outputColumnNames: _col0, _col1, _col2
> Statistics: Num rows: 5156859392 Data size: 1485175504896
> Basic stats: COMPLETE Column stats: COMPLETE
> Limit
> Number of rows: 100
> Statistics: Num rows: 100 Data size: 28800 Basic stats:
> COMPLETE Column stats: COMPLETE
> File Output Operator
> compressed: false
> Statistics: Num rows: 100 Data size: 28800 Basic stats:
> COMPLETE Column stats: COMPLETE
> table:
> input format: org.apache.hadoop.mapred.TextInputFormat
> output format:
> org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
> serde:
> org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
> Execution mode: vectorized
> Stage: Stage-0
> Fetch Operator
> limit: 100
> Processor Tree:
> ListSink
> {code}
> Actual rows counts
> {code}
> VERTICES TOTAL_TASKS FAILED_ATTEMPTS KILLED_TASKS DURATION_SECONDS
> CPU_TIME_MILLIS GC_TIME_MILLIS INPUT_RECORDS OUTPUT_RECORDS
> Map 1 1 0 0 1.01
> 1,280 0 462,000 65
> Map 2 1 0 0 0.41
> 400 23 10,000 62
> Map 3 2574 0 0 947.79
> 442,220,640 1,887,714 82,510,879,939 82,510,879,939
> Map 7 9 0 0 869.22
> 42,490 1,215 56,133,127 3,081
> Reducer 4 1009 0 0 389.75
> 69,471,510 1,149,529 82,510,883,020 33
> Reducer 5 253 0 0 93.73
> 938,930 26,150 33 33
> Reducer 6 1 0 0 2.08
> 730 10 33 33
> {code}
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