Informix Error -9439: Feature or method (<identifier>) is not supported for distinct </identifier> types.

Reasons / Common Causes

-9439 fires when the named feature or method is used against a distinct type that doesn't support it in this release — per the official guidance.

1. A feature or method not yet implemented for distinct types, per the official guidance — the direct, only cause; it might be implemented in a future release.

Solutions / Resolution

1. Avoid using the named feature or method with distinct types, per the official guidance's implication, until a supporting release is available.

Examples

N/A

No specific triggering statement is documented; the named feature/method varies.

Diagnostic Checks

1. Check whether the named feature/method is documented as supported for distinct types in the current release, and avoid it if not.

Related Errors / Related Topics

• -9432 — "Variable length UDTs are not supported in this version of Java." A related Java-feature-coverage limitation, on variable-length UDTs specifically rather than a named feature/method.
• -9438 — "Feature or method () is not supported for opaque types." The same class of feature-coverage limitation, for opaque types rather than distinct types.

The named feature or method isn't yet supported for distinct types — avoid it until a supporting release.