PostgresDB 2200G: Most Specific Type Mismatch

What is PostgresDB 2200G: Most Specific Type Mismatch

When encountering the error 2200G: Most Specific Type Mismatch in a PostgreSQL database, perform the following actions:

Identify the query causing the error. Review application logs or the PostgreSQL log file to find the exact query that led to this error.Analyze the query to check for data type inconsistencies between columns and values being inserted or compared. Look for places where implicit or explicit type casting might be happening.Run the EXPLAIN command with the problematic query to get more insights into how PostgreSQL is executing the query and where it might be failing due to type mismatches. For example:EXPLAIN SELECT * FROM your_table WHERE your_column = 'your_value';Check the data types of all columns involved in the query using the \d table_name; command in the psql tool to ensure that the data types match the expected values in the query.If you've identified a mismatch in data types, adjust the query to explicitly cast values to the correct type. For example, if a column is of type integer and your query provides a string, you might need to change it to:SELECT * FROM your_table WHERE your_column = CAST('your_value' AS INTEGER);If the error persists and you suspect it might be due to a more complex type issue (such as with custom types or domains), use the following SQL to investigate the specific types involved:SELECT typname, typtype, typcategory FROM pg_type WHERE typname = 'your_type_name';

Replace placeholders like your_table, your_column, your_value, and your_type_name with the actual names relevant to your situation.