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mariadb-columnstore-engine/dbcon/doc/q13_plan.txt
2016-01-06 14:08:59 -06:00

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Q13
select
c_count,
count(*) as custdist
from
(
select
c_custkey,
count(o_orderkey) as c_count
from
customer left outer join orders on
c_custkey = o_custkey
and o_comment not like '%:1%:2%'
group by
c_custkey
) c_orders
group by
c_count
order by
custdist desc,
c_count desc;
Oracle Execution Plan
Operation: table access
Options: FULL
Object_type: TABLE
Other:
Object_owner: CALUSER01
Search_columns:
Projection: C_CUSTKEY
Object_name: CUSTOMER
Alias: CUSTOMER@SEL$3
Extended_information:
Access_predicates:
Filter_predicates:
Select_level: SEL$54D64B3C
--------------------
Operation: table access
Options: FULL
Object_type: TABLE
Other:
Object_owner: CALUSER01
Search_columns:
Projection: ORDERS.O_ORDERKEY^O_CUSTKEY
Object_name: ORDERS
Alias: ORDERS@SEL$2
Extended_information: FP:O_COMMENT(+) NOT LIKE '%:1%:2%'
Access_predicates:
Filter_predicates: O_COMMENT(+) NOT LIKE '%:1%:2%'
Select_level: SEL$54D64B3C
--------------------
Operation: hash join
Options: OUTER
Object_type:
Other:
Object_owner:
Search_columns:
Projection: C_CUSTKEY^ORDERS.O_ORDERKEY
Object_name:
Alias:
Extended_information: AP:C_CUSTKEY=O_CUSTKEY(+)
Access_predicates: C_CUSTKEY=O_CUSTKEY(+)
Filter_predicates:
Select_level:
--------------------
Operation: hash
Options: GROUP BY
Object_type:
Other:
Object_owner:
Search_columns:
Projection: CUSTOMER.C_CUSTKEY^COUNT(ORDERS.O_ORDERKEY)
Object_name:
Alias:
Extended_information:
Access_predicates:
Filter_predicates:
Select_level: SEL$54D64B3C
--------------------
Operation: view
Options:
Object_type:
Other:
Object_owner: CALUSER01
Search_columns:
Projection: C_COUNT
Object_name:
Alias: C_ORDERS@SEL$1
Extended_information:
Access_predicates:
Filter_predicates:
Select_level: SEL$54D64B3C
--------------------
Operation: hash
Options: GROUP BY
Object_type:
Other:
Object_owner:
Search_columns:
Projection: C_COUNT^COUNT(ALL)
Object_name:
Alias:
Extended_information:
Access_predicates:
Filter_predicates:
Select_level:
--------------------
Operation: sort
Options: ORDER BY
Object_type:
Other:
Object_owner:
Search_columns:
Projection: COUNT(ALL)^INTERNAL_FUNCTION(C_COUNT)
Object_name:
Alias:
Extended_information:
Access_predicates:
Filter_predicates:
Select_level: SEL$1
--------------------
Operation: select statement
Options:
Object_type:
Other:
Object_owner:
Search_columns:
Projection:
Object_name:
Alias:
Extended_information:
Access_predicates:
Filter_predicates:
Select_level:
--------------------
Calpont Execution Plan
>SELECT MAIN
>>Returned Columns
ArithmeticColumn: AggregateColumn count(ALL)
ArithmeticColumn: SimpleColumn ALL
s/t/c/T/A/RA: ///0//184
ArithmeticColumn: FunctionColumn: internal_function(C_COUNT)
>>Filters
SimpleFilter
SimpleColumn tpch.ORDERS.O_COMMENT
s/t/c/T/A/RA: tpch/ORDERS/O_COMMENT/24//0
Operator: NOT LIKE ConstantColumn: %:1%:2%(l)
SimpleFilter
SimpleColumn tpch.CUSTOMER.C_CUSTKEY
s/t/c/T/A/RA: tpch/CUSTOMER/C_CUSTKEY/8/CUSTOMER/1
Operator: = SimpleColumn tpch.ORDERS.O_CUSTKEY
s/t/c/T/A/RA: tpch/ORDERS/O_CUSTKEY/17/ORDERS/0
Operator: and
>>Group By Columns
ArithmeticColumn: AggregateColumn count(ALL)
ArithmeticColumn: SimpleColumn ALL
s/t/c/T/A/RA: ///0//112
ArithmeticColumn: FunctionColumn: internal_function(C_COUNT)
SessionID: 4940
TxnID: 373
VerID: 373
--- Column Map ---
C_CUSTKEY : 0x96d8650
O_COMMENT : 0x96d37b8
O_CUSTKEY : 0x96d3758
O_ORDERKEY : 0x96d3728