Informix Error -1234: Function may be applied only to datetime data types.

Reasons / Common Causes

-1234 is flagged by the official text as not believed to be in use in any current product — per the official guidance, encountering it at all is unexpected.

1. A legacy code path still capable of raising this message, even though it's not believed to be reachable in any current product, per the official guidance's framing.

Solutions / Resolution

1. Document all circumstances and contact IBM Informix Technical Support, per the official guidance — this is the documented response, given the message isn't expected to occur at all.

Examples

N/A

No specific triggering statement is documented for -1234, consistent with the official guidance's framing that it isn't believed to be in use.

Diagnostic Checks

1. Capture the exact circumstances under which this unexpected message appeared, per the official guidance's escalation path.

Related Errors / Related Topics

• -1233 — "Invalid hour, minute, or second." Another error carrying the same "not believed to be in use" framing, in the same general datetime-validity family.

Not believed to be in use in any current product — capture full circumstances and escalate to IBM Informix Technical Support if actually encountered.