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SQLSTATE 42P01

PostgreSQL undefined_table

PostgreSQL could not resolve a referenced table, view, sequence, materialized view, or other relation in the active namespace.

PostgreSQL name resolutionSchemahigh
Exact message
ERROR: relation does not exist

Also searched as: undefined_table · relation does not exist

What it means

The object is absent, named with different case, hidden by search_path, or the application is connected to the wrong database or schema.

Typical trigger conditions

  • A migration did not run
  • An incorrect search_path
  • Quoted mixed-case identifiers
  • Connection to the wrong database or environment
Evidence before intervention

First diagnostic checks

1

Confirm database and schema

Establish the exact database, user and search path.

SELECT current_database(), current_user, current_schemas(true);
2

Resolve the relation

Ask PostgreSQL whether the qualified object is visible.

SELECT to_regclass('<schema>.<relation>');
3

Verify migration state

Compare the deployed schema migration version with the application release.

Version and platform notes

Name-resolution rules are stable, but migration tooling and deployment evidence are application-specific.

Engineering signal

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