Executes child operations for each partition in a disjunction
This operation was introduced in Oracle 10.2
This operation is implemented in the following versions
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This example was developed using Oracle 10.2.0.1 on Linux
This example requires the following table definition
CREATE TABLE t1 (c1 NUMBER,c2 NUMBER) PARTITION BY RANGE (c1) ( PARTITION p1 VALUES LESS THAN (10), PARTITION p2 VALUES LESS THAN (20), PARTITION p3 VALUES LESS THAN (30), PARTITION p4 VALUES LESS THAN (40) );
The table does not need to be analysed
The statement
SELECT c1 FROM t1 FROM t1 WHERE c1 BETWEEN 10 AND 14 OR c1 BETWEEN 30 AND 34
generates the following execution plan
0 SELECT STATEMENT Optimizer=CHOOSE 1 0 PARTITION RANGE (OR) 2 1 TABLE ACCESS (FULL) OF 'T1'