invalid_schema_name (SQLSTATE 3F000) means PostgreSQL could not find the referenced schema.
invalid_schema_name (SQLSTATE 3F000) occurs when PostgreSQL cannot locate the referenced schema in the current database. Verify the schema exists, adjust search_path, or create the schema with CREATE SCHEMA to resolve the error.
invalid_schema_name
The invalid_schema_name error appears when a query refers to a schema that PostgreSQL cannot locate in the current database. The server raises SQLSTATE 3F000 and stops executing the statement.
The error usually surfaces in SELECT, INSERT, UPDATE, or function calls that use the qualified name schema.table or schema.function.
Fixing it quickly is essential because all subsequent statements that rely on the missing schema will also fail.
A non-existent schema name is the primary trigger. This happens after typos, migrations that removed the schema, or when developers switch databases without updating search_path.
Another frequent cause is an incorrect search_path.
If the desired schema is not listed first, PostgreSQL may search other schemas and raise 3F000 when it cannot find a matching object.
First, confirm the schema truly exists by querying pg_namespace. If it is missing, create it with CREATE SCHEMA.
If the schema exists, add it to the session or role search_path with SET search_path TO desired_schema, public.
Persist the change with ALTER ROLE or ALTER DATABASE if needed.
CI pipelines often spin up fresh databases that lack optional schemas. Add CREATE SCHEMA IF NOT EXISTS steps to migration scripts.
Renaming a schema breaks code that still references the old name.
Update all references or create a compatibility VIEW schema.
Automate schema creation in migrations to guarantee required namespaces exist in every environment.
Store search_path settings in your connection string or initialize them with a small SET command in your application code or Galaxy query template.
undefined_table (42P01) appears when the table name is wrong; fix by creating or renaming the table.
invalid_catalog_name (3F001) is similar but refers to a missing database; double-check your connection string.
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Yes. PostgreSQL resolves unqualified names using the first matching schema in search_path. Place frequently used schemas first.
No. PostgreSQL must raise 3F000 when it cannot find the schema. Instead, create the schema or fix the reference.
Galaxy autocompletes schema names from live metadata and warns when a referenced schema is missing, preventing 3F000 before execution.
No. SQLSTATE 3F000 has existed since early PostgreSQL versions and persists in the latest releases.
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