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mariadb-columnstore-engine/dbcon/doc/q4_plan.txt

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Q4
select
o_orderpriority,
count(*) as order_count
from
orders
where
o_orderdate >= date '1993-07-01'
and o_orderdate < date '1993-07-01' + interval '3' month
and exists (
select
*
from
lineitem
where
l_orderkey = o_orderkey
and l_commitdate < l_receiptdate
)
group by
o_orderpriority
order by
o_orderpriority;
Oracle Execution Plan
Operation: table access
Options: FULL
Object_type: TABLE
Other:
Object_owner: CALUSER01
Search_columns:
Projection: O_ORDERKEY^O_ORDERPRIORITY
Object_name: ORDERS
Alias: ORDERS@SEL$1
Extended_information: FP:O_ORDERDATE>=TO_DATE('1993-07-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss') AND O_ORDERDATE<TO_DATE('1993-10-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss')
Access_predicates:
Filter_predicates: O_ORDERDATE>=TO_DATE('1993-07-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss')&O_ORDERDATE<TO_DATE('1993-10-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss')
Select_level: SEL$5DA710D3
--------------------
Operation: table access
Options: FULL
Object_type: TABLE
Other:
Object_owner: CALUSER01
Search_columns:
Projection: L_ORDERKEY
Object_name: LINEITEM
Alias: LINEITEM@SEL$2
Extended_information: FP:L_COMMITDATE<L_RECEIPTDATE
Access_predicates:
Filter_predicates: L_COMMITDATE<L_RECEIPTDATE
Select_level: SEL$5DA710D3
--------------------
Operation: hash join
Options: SEMI
Object_type:
Other:
Object_owner:
Search_columns:
Projection: O_ORDERPRIORITY
Object_name:
Alias:
Extended_information: AP:L_ORDERKEY=O_ORDERKEY
Access_predicates: L_ORDERKEY=O_ORDERKEY
Filter_predicates:
Select_level:
--------------------
Operation: sort
Options: GROUP BY
Object_type:
Other:
Object_owner:
Search_columns:
Projection: O_ORDERPRIORITY^COUNT(ALL)
Object_name:
Alias:
Extended_information:
Access_predicates:
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:
--------------------
Calpont Execution Plan
>SELECT MAIN
>>Returned Columns
1. SimpleColumn tpch.ORDERS.O_ORDERPRIORITY
s/t/c/T/A: tpch/ORDERS/O_ORDERPRIORITY/21/ORDERS
2. ArithmeticColumn: AggregateColumn count(ALL)
ArithmeticColumn: SimpleColumn ALL
s/t/c/T/A: ///0/
>>Filters
SimpleFilter
SimpleColumn tpch.ORDERS.O_ORDERDATE
s/t/c/T/A: tpch/ORDERS/O_ORDERDATE/20/
Operator: >= ArithmeticColumn: FunctionColumn: to_date('1993-07-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss')
SimpleFilter
SimpleColumn tpch.ORDERS.O_ORDERDATE
s/t/c/T/A: tpch/ORDERS/O_ORDERDATE/20/
Operator: < ArithmeticColumn: FunctionColumn: to_date('1993-10-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss')
Operator: AND
SimpleFilter
SimpleColumn tpch.LINEITEM.L_COMMITDATE
s/t/c/T/A: tpch/LINEITEM/L_COMMITDATE/36/
Operator: < SimpleColumn tpch.LINEITEM.L_RECEIPTDATE
s/t/c/T/A: tpch/LINEITEM/L_RECEIPTDATE/37/
Operator: and
SimpleFilter
SimpleColumn tpch.LINEITEM.L_ORDERKEY
s/t/c/T/A: tpch/LINEITEM/L_ORDERKEY/25/LINEITEM
Operator: = SimpleColumn tpch.ORDERS.O_ORDERKEY
s/t/c/T/A: tpch/ORDERS/O_ORDERKEY/16/ORDERS
Operator: and
>>Group By Columns
SimpleColumn tpch.ORDERS.O_ORDERPRIORITY
s/t/c/T/A: tpch/ORDERS/O_ORDERPRIORITY/21/ORDERS
ArithmeticColumn: AggregateColumn count(ALL)
ArithmeticColumn: SimpleColumn ALL
s/t/c/T/A: ///0/
SessionID: 4796
TxnID: 295
VerID: 295
--- Column Map ---
L_COMMITDATE : 0xa113d20
L_ORDERKEY : 0xa113af0
L_RECEIPTDATE : 0xa0f9788
O_ORDERDATE : 0xa113908
O_ORDERKEY : 0xa0f2df8
O_ORDERPRIORITY : 0xa0f9728