PostgresDB 2201W: Invalid Row Count in Limit Clause

Invalid row count in the LIMIT clause.
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PostgresDB 2201W: Invalid Row Count in Limit Clause

 ?

When encountering error 2201W: Invalid Row Count in Limit Clause in PostgreSQL, the recommended immediate action is to check the SQL query for correctness, specifically the LIMIT clause. Follow these steps:

  1. Review the Query: Ensure the LIMIT clause is using a non-negative integer. If a parameter is passed dynamically, verify its value.
  2. Check Dynamic Parameters: If parameters are used in the LIMIT clause, execute the following command to see the actual value being passed:
  3. SELECT your_parameter;
  4. Replace your_parameter with the actual parameter name or variable used in the LIMIT clause.
  5. Execute a Test Query: Run a simplified version of your query with a hardcoded, valid LIMIT value to see if the error persists. For example:
  6. SELECT * FROM your_table LIMIT 10;
  7. Replace your_table with the actual table name you are querying.
  8. Examine Application Logs: If the query is generated or executed by an application, check the application logs around the time the error occurred to see the exact query that was attempted.
  9. Validate Data Types: Ensure that the expression or variable used in the LIMIT clause is of an integer type. If it's being cast from another type, confirm the cast is successful and results in a valid integer.

By doing the above, you can identify and correct the cause of the "Invalid Row Count in Limit Clause" error.

Attached error: 
PostgresDB 2201W: Invalid Row Count in Limit Clause
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