Error
Error Code:
HV00P
PostgreSQL Error HV00P: FDW Schema Access Failure
Description
This error indicates that a Foreign Data Wrapper (FDW) operation failed because the FDW could not locate or access the necessary schemas on the foreign server. It typically arises when querying or interacting with an external data source via an FDW, and the expected schema structure is either missing, incorrectly configured, or inaccessible to the FDW user.
Error Message
fdw no schemas
Known Causes
4 known causesIncorrect Schema Mapping
The foreign table or server mapping refers to a schema name that either does not exist on the remote server or is incorrectly specified in the FDW configuration.
Missing Schema on Foreign Server
The schema expected by the FDW configuration genuinely does not exist on the foreign database server or has been dropped.
Insufficient Remote Permissions
The user account used by the FDW (via a `USER MAPPING`) lacks the necessary privileges to access the specified schema on the foreign server.
Case Sensitivity Mismatch
The schema name specified in the FDW configuration differs in case from the actual schema name on the foreign server, especially in databases with case-sensitive identifiers.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service