PostgresDB 22014: Invalid Argument for NTILE Function

Invalid argument for the NTILE function.
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PostgresDB 22014: Invalid Argument for NTILE Function

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When encountering the error 22014: Invalid Argument for NTILE Function in Postgres, the user should immediately check the argument passed to the NTILE function in their query. The argument for NTILE must be a positive integer. Here are the steps to investigate and resolve the issue:

  1. Review the Query: Identify the query causing the error and locate the NTILE function.
  2. Check the Argument: Examine the argument provided to NTILE. Ensure it is a positive integer greater than 0. If the argument is a variable or an expression, evaluate it to ensure it resolves to a positive integer.
  3. Correct the Argument: If the argument is found to be non-positive, zero, or not an integer, correct it to a valid positive integer.
  4. Test the Query: Run the corrected query to verify it executes successfully without the 22014 error.

Example Query Adjustment:

If the original query was something like:

SELECT NTILE(your_variable_or_expression) OVER (ORDER BY your_column) FROM your_table;

Ensure your_variable_or_expression evaluates to a positive integer. If you're unsure of what it evaluates to, you can run a test query like:

SELECT your_variable_or_expression FROM your_table LIMIT 1;

Adjust your_variable_or_expression accordingly based on its output or replace it with a static positive integer for testing purposes:

SELECT NTILE(1) OVER (ORDER BY your_column) FROM your_table;

This will help identify if the issue is with the NTILE argument.

Attached error: 
PostgresDB 22014: Invalid Argument for NTILE Function
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