The F0001 lock_file_exists error in PostgreSQL indicates that a lock file from a previous PostgreSQL server process still exists. This typically happens when the server did not shut down cleanly, and the leftover lock file is preventing a new server process from starting. Here are some steps to diagnose and fix this issue: If you …
The HV00M error code in PostgreSQL indicates an fdw_unable_to_create_reply error. This error suggests that the Foreign Data Wrapper (FDW) is unable to create a reply during an interaction with a foreign server, which could be due to various reasons such as network issues, incorrect server responses, or problems within the FDW itself. To diagnose and …
The HV009 error code in PostgreSQL is associated with an fdw_invalid_use_of_null_pointer error. This error typically indicates that a Foreign Data Wrapper (FDW) function is trying to access or dereference a NULL pointer, which is an invalid operation in C and similar programming languages. This could be due to a bug in the FDW, incorrect handling …
The HV004 error code in PostgreSQL indicates an fdw_invalid_data_type error, which means there is an issue with a data type being used in a Foreign Data Wrapper (FDW) operation. This error typically occurs when a foreign table has a column with a data type that does not have a corresponding or compatible data type in …
The HV000 error code in PostgreSQL is associated with a Foreign Data Wrapper (FDW) error. This error class indicates a generic issue with the foreign data wrapper setup or operation. To diagnose and fix an HV000 error, you’ll need to consider several aspects of your FDW configuration and usage. Here are some examples and sample …
The XX001 error code in PostgreSQL indicates “data_corrupted,” which suggests that there is data corruption in the database. This is a serious issue as it may lead to data loss or database instability. Data corruption can occur due to various reasons, such as hardware failures, file system issues, or bugs in PostgreSQL itself. To diagnose …
The HV00N error code in PostgreSQL indicates that a Foreign Data Wrapper (FDW) is unable to establish a connection to the external data source. This error can occur for a variety of reasons, including network issues, authentication problems, incorrect connection settings, or the external database server being unavailable. To diagnose and fix the HV00N error, …
The HV014 error code in PostgreSQL is related to Foreign Data Wrappers (FDWs) and indicates “fdw_too_many_handles.” This error occurs when the FDW tries to open more file descriptors or handles than the operating system allows. This can happen when dealing with a large number of foreign tables or executing many concurrent operations involving foreign data. …
The HV006 error code in PostgreSQL pertains to an issue with Foreign Data Wrappers (FDWs), specifically indicating “fdw_invalid_data_type_descriptors.” This error suggests that there is a problem with the data type descriptors used by the FDW, which could be due to a mismatch between the data types expected by PostgreSQL and those provided by the foreign …
The HV005 error code in PostgreSQL indicates that a column name was not found within a Foreign Data Wrapper (FDW) operation. This typically occurs when you are querying a foreign table and the column you are trying to reference does not exist in the foreign data source or is not correctly defined in the foreign …