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mariadb-columnstore-engine/dbcon/doc/oraclexplan/hashjoinsemi01.log
2016-01-06 14:08:59 -06:00

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Operation: table access
Options: FULL
Object_type: TABLE
Other:
Object_owner: JLOWE
Search_columns:
Projection: C.C_CUSTKEY^C_NAME
Object_name: CUSTOMER
Alias: C@SEL$1
Extended_information:
Access_predicates:
Filter_predicates:
Select_level: SEL$5DA710D3
--------------------
Operation: table access
Options: FULL
Object_type: TABLE
Other:
Object_owner: JLOWE
Search_columns:
Projection: C_CUSTKEY
Object_name: CUSTOMER
Alias: CUSTOMER@SEL$2
Extended_information: FP:C_NAME='KING'
Access_predicates:
Filter_predicates: C_NAME='KING'
Select_level: SEL$5DA710D3
--------------------
Operation: hash join
Options: SEMI
Object_type:
Other:
Object_owner:
Search_columns:
Projection: C_NAME
Object_name:
Alias:
Extended_information: AP:C.C_CUSTKEY=C_CUSTKEY
Access_predicates: C.C_CUSTKEY=C_CUSTKEY
Filter_predicates:
Select_level: SEL$5DA710D3
--------------------
Operation: select statement
Options:
Object_type:
Other:
Object_owner:
Search_columns:
Projection:
Object_name:
Alias:
Extended_information:
Access_predicates:
Filter_predicates:
Select_level:
--------------------
TOKEN: <C_NAME='KING'>
TOKEN: <C_NAME='KING'>
TOKEN: <C.C_CUSTKEY=C_CUSTKEY>
TOKEN: <C.C_CUSTKEY=C_CUSTKEY>
Operator: (
SimpleFilter
SimpleColumn tpch.CUSTOMER.C_NAME
s/t/c/T/A/RA: tpch/CUSTOMER/C_NAME/9/C/0
Operator: = ConstantColumn: KING(l)
Operator: )
Operator: and
Operator: (
SimpleFilter
SimpleColumn tpch.CUSTOMER.C_CUSTKEY
s/t/c/T/A/RA: tpch/CUSTOMER/C_CUSTKEY/8/C/0
Operator: = SimpleColumn tpch.CUSTOMER.C_CUSTKEY
s/t/c/T/A/RA: tpch/CUSTOMER/C_CUSTKEY/8/C/0
Operator: )
C_CUSTKEY: SimpleColumn tpch.CUSTOMER.C_CUSTKEY
s/t/c/T/A/RA: tpch/CUSTOMER/C_CUSTKEY/8/C/0
C_CUSTKEY: SimpleColumn tpch.CUSTOMER.C_CUSTKEY
s/t/c/T/A/RA: tpch/CUSTOMER/C_CUSTKEY/8/CUSTOMER/0
C_NAME: SimpleColumn tpch.CUSTOMER.C_NAME
s/t/c/T/A/RA: tpch/CUSTOMER/C_NAME/9/C/0
>SELECT MAIN
>>Returned Columns
SimpleColumn tpch.CUSTOMER.C_NAME
s/t/c/T/A/RA: tpch/CUSTOMER/C_NAME/9/C/0
>>Filters
SimpleFilter
SimpleColumn tpch.CUSTOMER.C_NAME
s/t/c/T/A/RA: tpch/CUSTOMER/C_NAME/9/C/0
Operator: = ConstantColumn: KING(l)
SimpleFilter
SimpleColumn tpch.CUSTOMER.C_CUSTKEY
s/t/c/T/A/RA: tpch/CUSTOMER/C_CUSTKEY/8/C/0
Operator: = SimpleColumn tpch.CUSTOMER.C_CUSTKEY
s/t/c/T/A/RA: tpch/CUSTOMER/C_CUSTKEY/8/C/0
Operator: and
SessionID: 233
TxnID: 33
VerID: 33
--- Column Map ---
C_CUSTKEY : 0x8ff5c00
C_CUSTKEY : 0x902ac50
C_NAME : 0x902ac20