Informix Error -35036: This line uses an Informix extension to ISO/ANSI SQL, near identifier or symbol name.

Reasons / Common Causes

-35036 fires only when the ESQL preprocessor is run with the -ansi option — per the official guidance, it flags any statement using Informix-specific SQL syntax that ISO/ANSI standard SQL doesn't define.

1. The -ansi compile option being used, per the official guidance — this warning is suppressed entirely without it.
2. An Informix-specific extension appearing in the flagged statement, per the official guidance, near the named identifier or symbol.

Solutions / Resolution

1. Revise the statement to comply with ANSI standards, per the official guidance, if ANSI portability is actually required.
2. If ANSI compliance isn't actually a requirement, drop the -ansi option instead of rewriting the statement.

Examples

N/A

No specific triggering statement is documented beyond "an Informix extension... near identifier or symbol name" — the exact offending syntax varies per statement.

Diagnostic Checks

1. Confirm whether -ansi is actually required for this build before investing in rewriting the flagged statement.
2. Identify the specific Informix extension in use at the named identifier/symbol.

Related Errors / Related Topics

• -35226 — Shares this exact message text; appears to be the same ANSI-extension warning reused at a second code position in this set.
• -35038 — "This statement uses an Informix extension to the X/Open standard..." The X/Open-compliance-mode counterpart to this ANSI-compliance-mode warning.
• -35227 — Shares -35038's message text; the X/Open counterpart to -35226.

An Informix-specific SQL extension triggered this only because -ansi was in effect — revise the statement, or drop -ansi if ANSI portability isn't actually needed.