The 55P03 error code in PostgreSQL indicates a “lock_not_available” error. This error occurs when a query attempts to acquire a lock that is not available at that moment because another session holds a conflicting lock. The error is commonly encountered when using the NOWAIT option or the SKIP LOCKED clause in a locking query, which …
The 53400 error code in PostgreSQL indicates a “configuration_limit_exceeded” error. This error occurs when a database configuration parameter that has a defined limit is exceeded. Common situations that can trigger this error include exceeding the maximum number of allowed connections, running out of available locks, or exceeding other resource-related configuration limits. To diagnose and fix …
The 42P15 error code in PostgreSQL indicates an “invalid_schema_definition” error. This error suggests that there is a problem with the way a schema is defined. This could be due to a variety of reasons, such as attempting to create a schema that already exists without using the IF NOT EXISTS clause, using invalid syntax, or …
The 42702 error code in PostgreSQL indicates an “ambiguous_column” error. This error occurs when a column reference in a query is ambiguous, meaning it is not clear to which table the column belongs. This typically happens when you join multiple tables that have columns with the same name and reference one of these columns without …
The 42P03 error code in PostgreSQL indicates a “duplicate_cursor” error. This error occurs when you attempt to declare a new cursor with a name that is already used by an existing cursor within the same transaction block. Cursors in PostgreSQL are like iterators that are used to retrieve a few rows at a time from …
The 42804 error code in PostgreSQL indicates a datatype mismatch, which means that the data type of one or more values does not match the expected data type. This can occur in various situations, such as during assignments, function calls, or when combining query results. Here are some common scenarios where this error might arise, …
The 57P03 error code in PostgreSQL indicates a cannot_connect_now error. This error is typically raised when the PostgreSQL database server is starting up and is not ready to accept connections or is in a state that prevents it from accepting connections, such as during recovery or shutdown. Here are some scenarios that can cause this …
The 55P04 error code in PostgreSQL, which stands for unsafe_new_enum_value_usage, is not a standard PostgreSQL error and does not appear in the official list of PostgreSQL error codes. It’s possible that this error code might be related to a specific extension or a customized version of PostgreSQL. However, generally speaking, issues related to enum types …
The 54000 error code in PostgreSQL indicates a program_limit_exceeded error. This error means that some predefined limit in the PostgreSQL system has been exceeded. There are several scenarios where this can occur, such as exceeding the maximum number of columns in a table, the maximum number of arguments in a function, or the size of …
The 42P16 error code in PostgreSQL indicates an invalid_table_definition error. This error occurs when there is a problem with the syntax or semantics of a table definition in a CREATE TABLE or ALTER TABLE statement. Common causes include specifying invalid column names, data types, constraints, or tablespace specifications. Here are examples and solutions to resolve …