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PARTITION RANGE (OR)

Description

Executes child operations for each partition in a disjunction

Versions

This operation was introduced in Oracle 10.2

This operation is implemented in the following versions

Example

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'