Search Conditions Linked with OR
There are
search conditions linked with OR. The system analyzes the individual search conditions.If the system finds an
equality condition for key columns, it ignores the other search conditions linked with OR.If the system does not find any equality conditions for key columns, the other search conditions linked with OR, that the system has not considered until then, are analyzed.
Procedure
If applicable, the
EXPLAIN statement displays the search strategy DIFFERENT STRATEGIES FOR OR-TERMS.