Mega'/**/and(select'1'from/**/pg_sleep(0))::text>'0 -

While this specific payload uses 0 , it is often replaced with pg_sleep(10) to check if the server takes 10 seconds to respond.

Ensure all input is validated and sanitized properly before database interaction. MEGA'/**/and(select'1'from/**/pg_sleep(0))::text>'0

Similar to the PortSwigger Blind SQL Injection lab examples, this structure is used to ask the database boolean questions (e.g., "Does the database name start with 'a'?"). If the page delays, the answer is yes; if it loads immediately, the answer is no. Detection and Mitigation While this specific payload uses 0 , it

pg_sleep(X) is a Postgres function that pauses the query execution for X seconds. While this specific payload uses 0

: A dummy value or string to close a previous single-quote, attempting to break out of the original SQL query context.