The CHR() functions translate character codes into letters to bypass simple security filters. In this case, they spell out "qpxbq" and "qvpjq".
It looks like you've shared a snippet of rather than a typical search topic. Specifically, this string is designed to test for vulnerabilities in a database by using PostgreSQL-specific syntax ( ::text and CHR functions). The CHR() functions translate character codes into letters
If you are seeing this in your website logs or a search bar, it’s likely an automated bot scanning for security holes. Specifically, this string is designed to test for
If a database is vulnerable, it will try to process this calculation. Because the resulting string (a mix of letters and the number 1) cannot be converted to a NUMERIC type, the database will throw an error message . An attacker looks for that specific error to confirm the database is open to manipulation. Because the resulting string (a mix of letters