|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: REQUIRED | OPTIONAL | DETAIL: ELEMENT | |||||||||
@InterfaceAudience.Public @InterfaceStability.Unstable @Documented @Retention(value=RUNTIME) public @interface Nondeterministic
A non-deterministic UDF is one that can produce different results when invoked on the same input. Examples of non-deterministic behavior might be, for example, getCurrentTime() or random().
Certain Pig optimizations depend on UDFs being deterministic. It is therefore very important for correctness that non-deterministic UDFs be annotated as such.
|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: REQUIRED | OPTIONAL | DETAIL: ELEMENT | |||||||||