Informix Error -9999: Routine collcompare() is not supported.

Reasons / Common Causes

-9999 fires whenever collcompare() is called — per the official guidance; the routine always returns -1 and this error, since the semantics of the comparison aren't defined.

1. A call to collcompare(), per the official guidance — the direct, only cause; it is unconditionally unsupported.

Solutions / Resolution

1. Avoid calling collcompare(), consistent with the official guidance — it has no defined comparison semantics and always fails.

Examples

N/A

No specific triggering statement is documented beyond calling collcompare().

Diagnostic Checks

1. Check the code for a call to collcompare(), and remove or replace it, since it's unconditionally unsupported.

Related Errors / Related Topics

No closely related error codes are cross-referenced for -9999 in this set yet.

collcompare() is unconditionally unsupported and always fails — avoid calling it.