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Posted to dev@hive.apache.org by "Mostafa Mokhtar (JIRA)" <ji...@apache.org> on 2014/09/09 16:28:29 UTC
[jira] [Created] (HIVE-8031) CBO should use per column join
selectivity not NDV when applying exponential backoff.
Mostafa Mokhtar created HIVE-8031:
-------------------------------------
Summary: CBO should use per column join selectivity not NDV when applying exponential backoff.
Key: HIVE-8031
URL: https://issues.apache.org/jira/browse/HIVE-8031
Project: Hive
Issue Type: Bug
Components: CBO
Affects Versions: 0.13.1
Reporter: Mostafa Mokhtar
Assignee: Laljo John Pullokkaran
Fix For: 0.14.0
Simplify predicates for disjunctive predicates so that can get pushed down to the scan.
For TPC-DS query 13 we push down predicates in the following form
where c_martial_status in ('M','D','U') etc..
{code}
select avg(ss_quantity)
,avg(ss_ext_sales_price)
,avg(ss_ext_wholesale_cost)
,sum(ss_ext_wholesale_cost)
from store_sales
,store
,customer_demographics
,household_demographics
,customer_address
,date_dim
where store.s_store_sk = store_sales.ss_store_sk
and store_sales.ss_sold_date_sk = date_dim.d_date_sk and date_dim.d_year = 2001
and((store_sales.ss_hdemo_sk=household_demographics.hd_demo_sk
and customer_demographics.cd_demo_sk = store_sales.ss_cdemo_sk
and customer_demographics.cd_marital_status = 'M'
and customer_demographics.cd_education_status = '4 yr Degree'
and store_sales.ss_sales_price between 100.00 and 150.00
and household_demographics.hd_dep_count = 3
)or
(store_sales.ss_hdemo_sk=household_demographics.hd_demo_sk
and customer_demographics.cd_demo_sk = store_sales.ss_cdemo_sk
and customer_demographics.cd_marital_status = 'D'
and customer_demographics.cd_education_status = 'Primary'
and store_sales.ss_sales_price between 50.00 and 100.00
and household_demographics.hd_dep_count = 1
) or
(store_sales.ss_hdemo_sk=household_demographics.hd_demo_sk
and customer_demographics.cd_demo_sk = ss_cdemo_sk
and customer_demographics.cd_marital_status = 'U'
and customer_demographics.cd_education_status = 'Advanced Degree'
and store_sales.ss_sales_price between 150.00 and 200.00
and household_demographics.hd_dep_count = 1
))
and((store_sales.ss_addr_sk = customer_address.ca_address_sk
and customer_address.ca_country = 'United States'
and customer_address.ca_state in ('KY', 'GA', 'NM')
and store_sales.ss_net_profit between 100 and 200
) or
(store_sales.ss_addr_sk = customer_address.ca_address_sk
and customer_address.ca_country = 'United States'
and customer_address.ca_state in ('MT', 'OR', 'IN')
and store_sales.ss_net_profit between 150 and 300
) or
(store_sales.ss_addr_sk = customer_address.ca_address_sk
and customer_address.ca_country = 'United States'
and customer_address.ca_state in ('WI', 'MO', 'WV')
and store_sales.ss_net_profit between 50 and 250
))
;
{code}
This is the plan currently generated without any predicate simplification
{code}
STAGE DEPENDENCIES:
Stage-1 is a root stage
Stage-0 depends on stages: Stage-1
STAGE PLANS:
Stage: Stage-1
Tez
Edges:
Map 7 <- Map 8 (BROADCAST_EDGE)
Map 8 <- Map 5 (BROADCAST_EDGE), Map 6 (BROADCAST_EDGE)
Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 4 (BROADCAST_EDGE), Map 7 (SIMPLE_EDGE)
Reducer 3 <- Reducer 2 (SIMPLE_EDGE)
DagName: mmokhtar_20140828155050_7059c24b-501b-4683-86c0-4f3c023f0b0e:1
Vertices:
Map 1
Map Operator Tree:
TableScan
alias: customer_address
Statistics: Num rows: 40000000 Data size: 40595195284 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: ca_address_sk (type: int), ca_state (type: string), ca_country (type: string)
outputColumnNames: _col0, _col1, _col2
Statistics: Num rows: 40000000 Data size: 40595195284 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
sort order:
Statistics: Num rows: 40000000 Data size: 40595195284 Basic stats: COMPLETE Column stats: NONE
value expressions: _col0 (type: int), _col1 (type: string), _col2 (type: string)
Execution mode: vectorized
Map 4
Map Operator Tree:
TableScan
alias: date_dim
filterExpr: ((d_year = 2001) and d_date_sk is not null) (type: boolean)
Statistics: Num rows: 73049 Data size: 81741831 Basic stats: COMPLETE Column stats: NONE
Filter Operator
predicate: ((d_year = 2001) and d_date_sk is not null) (type: boolean)
Statistics: Num rows: 18262 Data size: 20435178 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: d_date_sk (type: int)
outputColumnNames: _col0
Statistics: Num rows: 18262 Data size: 20435178 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
key expressions: _col0 (type: int)
sort order: +
Map-reduce partition columns: _col0 (type: int)
Statistics: Num rows: 18262 Data size: 20435178 Basic stats: COMPLETE Column stats: NONE
Execution mode: vectorized
Map 5
Map Operator Tree:
TableScan
alias: household_demographics
Statistics: Num rows: 7200 Data size: 770400 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: hd_demo_sk (type: int), hd_dep_count (type: int)
outputColumnNames: _col0, _col1
Statistics: Num rows: 7200 Data size: 770400 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
sort order:
Statistics: Num rows: 7200 Data size: 770400 Basic stats: COMPLETE Column stats: NONE
value expressions: _col0 (type: int), _col1 (type: int)
Execution mode: vectorized
Map 6
Map Operator Tree:
TableScan
alias: store
filterExpr: (true and s_store_sk is not null) (type: boolean)
Statistics: Num rows: 1704 Data size: 3256276 Basic stats: COMPLETE Column stats: NONE
Filter Operator
predicate: s_store_sk is not null (type: boolean)
Statistics: Num rows: 852 Data size: 1628138 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: s_store_sk (type: int)
outputColumnNames: _col0
Statistics: Num rows: 852 Data size: 1628138 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
sort order:
Statistics: Num rows: 852 Data size: 1628138 Basic stats: COMPLETE Column stats: NONE
value expressions: _col0 (type: int)
Execution mode: vectorized
Map 7
Map Operator Tree:
TableScan
alias: store_sales
filterExpr: (ss_store_sk is not null and ss_sold_date_sk is not null) (type: boolean)
Statistics: Num rows: 82510879939 Data size: 7203833257964 Basic stats: COMPLETE Column stats: NONE
Filter Operator
predicate: (ss_store_sk is not null and ss_sold_date_sk is not null) (type: boolean)
Statistics: Num rows: 20627719985 Data size: 1800958314512 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: ss_sold_date_sk (type: int), ss_cdemo_sk (type: int), ss_hdemo_sk (type: int), ss_addr_sk (type: int), ss_store_sk (type: int), ss_quantity (type: int), ss_sales_price (type: float), ss_ext_sales_price (type: float), ss_ext_wholesale_cost (type: float), ss_net_profit (type: float)
outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6, _col7, _col8, _col9
Statistics: Num rows: 20627719985 Data size: 1800958314512 Basic stats: COMPLETE Column stats: NONE
Map Join Operator
condition map:
Inner Join 0 to 1
condition expressions:
0 {_col0} {_col1} {_col2} {_col4} {_col5}
1 {_col0} {_col1} {_col2} {_col3} {_col5} {_col6} {_col7} {_col8} {_col9}
keys:
0 _col3 (type: int)
1 _col4 (type: int)
outputColumnNames: _col0, _col1, _col2, _col4, _col5, _col6, _col7, _col8, _col9, _col11, _col12, _col13, _col14, _col15
input vertices:
0 Map 8
Statistics: Num rows: 22690492416 Data size: 1981054320640 Basic stats: COMPLETE Column stats: NONE
Filter Operator
predicate: (((_col8 = _col4) and ((_col0 = _col7) and ((_col1 = 'M') and ((_col2 = '4 yr Degree') and (_col12 BETWEEN 100 AND 150 and (_col5 = 3)))))) or (((_col8 = _col4) and ((_col0 = _col7) and ((_col1 = 'D') and ((_col2 = 'Primary') and (_col12 BETWEEN 50 AND 100 and (_col5 = 1)))))) or ((_col8 = _col4) and ((_col0 = _col7) and ((_col1 = 'U') and ((_col2 = 'Advanced Degree') and (_col12 BETWEEN 150 AND 200 and (_col5 = 1)))))))) (type: boolean)
Statistics: Num rows: 1063616832 Data size: 92861921280 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: _col6 (type: int), _col9 (type: int), _col11 (type: int), _col13 (type: float), _col14 (type: float), _col15 (type: float)
outputColumnNames: _col0, _col3, _col5, _col7, _col8, _col9
Statistics: Num rows: 1063616832 Data size: 92861921280 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
sort order:
Statistics: Num rows: 1063616832 Data size: 92861921280 Basic stats: COMPLETE Column stats: NONE
value expressions: _col0 (type: int), _col3 (type: int), _col5 (type: int), _col7 (type: float), _col8 (type: float), _col9 (type: float)
Execution mode: vectorized
Map 8
Map Operator Tree:
TableScan
alias: customer_demographics
Statistics: Num rows: 1920800 Data size: 718379200 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: cd_demo_sk (type: int), cd_marital_status (type: string), cd_education_status (type: string)
outputColumnNames: _col0, _col1, _col2
Statistics: Num rows: 1920800 Data size: 718379200 Basic stats: COMPLETE Column stats: NONE
Map Join Operator
condition map:
Inner Join 0 to 1
condition expressions:
0 {_col0} {_col1} {_col2}
1 {_col0}
keys:
0
1
outputColumnNames: _col0, _col1, _col2, _col3
input vertices:
1 Map 6
Statistics: Num rows: 2112880 Data size: 790217152 Basic stats: COMPLETE Column stats: NONE
Map Join Operator
condition map:
Inner Join 0 to 1
condition expressions:
0 {_col0} {_col1} {_col2} {_col3}
1 {_col0} {_col1}
keys:
0
1
outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5
input vertices:
1 Map 5
Statistics: Num rows: 2324168 Data size: 869238912 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
key expressions: _col3 (type: int)
sort order: +
Map-reduce partition columns: _col3 (type: int)
Statistics: Num rows: 2324168 Data size: 869238912 Basic stats: COMPLETE Column stats: NONE
value expressions: _col0 (type: int), _col1 (type: string), _col2 (type: string), _col4 (type: int), _col5 (type: int)
Execution mode: vectorized
Reducer 2
Reduce Operator Tree:
Join Operator
condition map:
Inner Join 0 to 1
condition expressions:
0 {VALUE._col0} {VALUE._col3} {VALUE._col5} {VALUE._col7} {VALUE._col8} {VALUE._col9}
1 {VALUE._col0} {VALUE._col1} {VALUE._col2}
outputColumnNames: _col0, _col3, _col5, _col7, _col8, _col9, _col16, _col17, _col18
Statistics: Num rows: 1169978496 Data size: 102148120576 Basic stats: COMPLETE Column stats: NONE
Filter Operator
predicate: (((_col3 = _col16) and ((_col18 = 'United States') and ((_col17) IN ('KY', 'GA', 'NM') and _col9 BETWEEN 100 AND 200))) or (((_col3 = _col16) and ((_col18 = 'United States') and ((_col17) IN ('MT', 'OR', 'IN') and _col9 BETWEEN 150 AND 300))) or ((_col3 = _col16) and ((_col18 = 'United States') and ((_col17) IN ('WI', 'MO', 'WV') and _col9 BETWEEN 50 AND 250))))) (type: boolean)
Statistics: Num rows: 219370968 Data size: 19152772608 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: _col0 (type: int), _col5 (type: int), _col7 (type: float), _col8 (type: float)
outputColumnNames: _col0, _col5, _col7, _col8
Statistics: Num rows: 219370968 Data size: 19152772608 Basic stats: COMPLETE Column stats: NONE
Map Join Operator
condition map:
Inner Join 0 to 1
condition expressions:
0 {_col5} {_col7} {_col8}
1
keys:
0 _col0 (type: int)
1 _col0 (type: int)
outputColumnNames: _col5, _col7, _col8
input vertices:
1 Map 4
Statistics: Num rows: 241308080 Data size: 21068050432 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: _col5 (type: int), _col7 (type: float), _col8 (type: float)
outputColumnNames: _col0, _col1, _col2
Statistics: Num rows: 241308080 Data size: 21068050432 Basic stats: COMPLETE Column stats: NONE
Group By Operator
aggregations: avg(_col0), avg(_col1), avg(_col2), sum(_col2)
mode: hash
outputColumnNames: _col0, _col1, _col2, _col3
Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
Reduce Output Operator
sort order:
Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
value expressions: _col0 (type: struct<count:bigint,sum:double,input:int>), _col1 (type: struct<count:bigint,sum:double,input:float>), _col2 (type: struct<count:bigint,sum:double,input:float>), _col3 (type: double)
Reducer 3
Reduce Operator Tree:
Group By Operator
aggregations: avg(VALUE._col0), avg(VALUE._col1), avg(VALUE._col2), sum(VALUE._col3)
mode: mergepartial
outputColumnNames: _col0, _col1, _col2, _col3
Statistics: Num rows: 1 Data size: 32 Basic stats: COMPLETE Column stats: NONE
Select Operator
expressions: _col0 (type: double), _col1 (type: double), _col2 (type: double), _col3 (type: double)
outputColumnNames: _col0, _col1, _col2, _col3
Statistics: Num rows: 1 Data size: 32 Basic stats: COMPLETE Column stats: NONE
File Output Operator
compressed: false
Statistics: Num rows: 1 Data size: 32 Basic stats: COMPLETE Column stats: NONE
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
Stage: Stage-0
Fetch Operator
limit: -1
Processor Tree:
ListSink
{code}
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