EC
42P17
PostgreSQLERRORNotableSyntax Error or Access Rule ViolationHIGH confidence

invalid object definition

What this means

SQLSTATE 42P17 is raised when an object definition (e.g., CREATE TYPE, CREATE DOMAIN, CREATE AGGREGATE, CREATE OPERATOR CLASS) contains an invalid or contradictory specification.

Why it happens
  1. 1CREATE TYPE or CREATE DOMAIN with invalid constraints or type options
  2. 2CREATE AGGREGATE with missing required functions or contradictory settings
  3. 3CREATE OPERATOR CLASS with invalid configuration
How to reproduce

CREATE DOMAIN with contradictory constraints.

trigger — this will error
trigger — this will error
CREATE DOMAIN positive_int AS INTEGER CHECK (VALUE > 0) CHECK (VALUE < 0);
-- contradictory CHECK constraints

expected output

ERROR:  invalid object definition

Fix

Review and correct the object definition

WHEN When this error appears from a CREATE TYPE or CREATE DOMAIN.

Review and correct the object definition
CREATE DOMAIN positive_int AS INTEGER CHECK (VALUE > 0);

Why this works

Remove contradictory constraints and ensure all required components of the object definition are present and compatible.

Sources
Official documentation ↗

Class 42 — Syntax Error or Access Rule Violation (Postgres-specific)

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