The fdw_column_name_not_found error means a column referenced in a foreign table query is missing or misspelled in the foreign table definition.
fdw_column_name_not_found appears when PostgreSQL cannot locate the referenced column in a foreign table definition. Check the foreign table’s column list, refresh or recreate the Foreign Data Wrapper mapping, and retry the query. Correcting the column definition resolves the error permanently.
fdw_column_name_not_found
PostgreSQL raises fdw_column_name_not_found (SQLSTATE HV005) when a query against a foreign table references a column that does not exist in that table's definition.
The error stops query execution because PostgreSQL cannot map the requested column to the remote source.
Foreign Data Wrapper (FDW) queries depend on an exact column list, so any mismatch triggers this failure.
A renamed or dropped column on the remote server leaves the local foreign table definition outdated, producing fdw_column_name_not_found at runtime.
Misspelled column names in SELECT, INSERT, UPDATE, or DELETE statements also trigger the error because PostgreSQL validates names against the foreign table metadata.
Verify the column exists on the remote table and matches the case-sensitive spelling in the foreign table definition.
Refresh or recreate the foreign table with an accurate column list, then rerun the query to confirm the error is gone.
After adding a new column remotely, SELECT * works but explicit column references fail until you ALTER FOREIGN TABLE or re-IMPORT FOREIGN SCHEMA.
Migrations that drop columns remotely require deleting or updating the local foreign table mapping to remove the stale column.
Automate schema refreshes using IMPORT FOREIGN SCHEMA in deployment pipelines so local mappings always match the source.
Galaxy’s SQL editor highlights undefined columns in real time, helping teams catch typos and outdated mappings before executing queries.
fdw_unable_to_create_execution appears when the FDW cannot push the query down due to capability mismatches.
undefined_column occurs on local tables and can be fixed with similar spelling and schema checks.
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Yes, but it masks underlying schema drift. Explicit columns are safer and self-documenting.
No. Unquoted identifiers are case-insensitive, but quoted identifiers preserve case and must match exactly.
Refresh after every migration on the source database. Automate it in CI/CD pipelines.
Galaxy shows undefined columns inline and lets you run quick schema introspection queries, speeding up FDW troubleshooting.
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