Error
Error Code:
HV006
PostgreSQL Error HV006: FDW Invalid Data Type Mismatch
Description
Error HV006 indicates an issue within a Foreign Data Wrapper (FDW) where data type descriptors are invalid or mismatched. This typically occurs when PostgreSQL attempts to access data from a foreign server, but the defined data types in the FDW or the actual data types on the foreign server do not align with expected definitions.
Error Message
fdw invalid data type descriptors
Known Causes
4 known causesData Type Mismatch
The data type defined for a column in the foreign table on the PostgreSQL server does not match the actual data type of the corresponding column on the foreign server.
Incorrect Column Mapping
The column definitions in the `CREATE FOREIGN TABLE` statement or the FDW options incorrectly specify data types or their properties for the foreign server.
Unsynced Foreign Schema
The schema of the foreign table on the remote server has changed (e.g., a column's data type was altered), but the foreign table definition in PostgreSQL has not been updated to reflect this.
FDW Driver Incompatibility
The underlying FDW driver or library being used is incompatible with the foreign server's data type definitions or the PostgreSQL version.
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