When encountering the error 2202H: Invalid Tablesample Argument in PostgreSQL, the user should immediately check the TABLESAMPLE clause used in the query for syntax errors or incorrect arguments. Specifically, ensure that:
BERNOULLI
, SYSTEM
) is correctly spelled.BERNOULLI
method, or a valid row count for the SYSTEM
method if applicable.REPEATABLE
seed is a positive integer if used.To investigate, run the following steps:
Example Query Correction:
SELECT * FROM your_table TABLESAMPLE BERNOULLI(10); -- Ensure percentage is between 0 to 100
SELECT
using the TABLESAMPLE clause on the table to isolate the issue.Example Testing Query:
SELECT * FROM your_table TABLESAMPLE BERNOULLI(5); -- Adjust the percentage to test
If the error persists after these checks, consider simplifying the query or using an alternative method to achieve the desired sample of the data.
(Perfect for DevOps & SREs)
(Perfect for DevOps & SREs)