Informix Error -9645: Cannot execute cast from user-defined type to character format.

Cause and resolution

Cannot execute cast from user-defined type to character format.

When you use the debugging feature of SPL to print the content of a user-defined, data-type variable, this error occurs if the database server cannot find or execute the cast function to convert from the given user-defined data type to character or long format.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-9645 fires when SPL's debugging feature tries to print a user-defined-type variable but the database server can't find or execute the cast to character/long format — per the official guidance.

A missing or unexecutable cast function from the UDT to character/long format, per the official guidance — the direct, only cause.

Solutions / Resolution

Define or fix the cast from the user-defined type to character/long format, consistent with the general cast-error remediation (CREATE CAST / CREATE FUNCTION), per the official guidance's description of the cause.

Examples

N/A

No specific triggering statement is documented beyond using SPL debug print on a UDT variable with no character cast.

Diagnostic Checks

Check the system catalog for a cast from the UDT to CHARACTER/LVARCHAR, and create or fix it if missing/broken.

Related Errors / Related Topics

-9634 — "No cast from ." The general no-such-cast error this is a specific case of, for SPL debug printing.
-9637 — "Cast function (function_name) does not exist." A related missing-cast- function error, general rather than specific to SPL debug printing.

SPL debug printing couldn't cast a UDT variable to character format — define or fix the cast.