Informix Error -19812: Illegal usage of replication shadow columns.

Reasons / Common Causes

-19812 fires when an operation is attempted on a table's replication shadow columns (CRCOLS) that isn't permitted — per the official guidance.

1. An operation targeting the replication shadow columns that isn't supported, per the official guidance — the direct, only cause.

Solutions / Resolution

1. Avoid performing the disallowed operation on the shadow columns, per the official guidance — CRCOLS are managed internally by Enterprise Replication.

Examples

N/A

No specific triggering statement is documented beyond an illegal operation on CRCOLS.

Diagnostic Checks

1. Check whether the statement targets the replication shadow columns directly, and remove that targeting.

Related Errors / Related Topics

• -19813 — "Cannot add CRCOLS when table already has replication shadow columns." A related CRCOLS restriction, about adding columns that already exist rather than a general illegal usage.
• -19814 — "Cannot drop CRCOLS when table does not have replication shadow columns." A related CRCOLS restriction, about dropping columns that don't exist rather than a general illegal usage.

An operation on a table's replication shadow columns (CRCOLS) isn't permitted — avoid targeting them directly.