It appears that you've included a string that resembles an SQL injection payload. SQL injection is a type of attack that allows attackers to interfere with the queries that an application makes to its database.
Here's a breakdown of what you're seeing:
205MV2NqD8'- This might be meant to terminate a SQL string.OR 138=(SELECT 138 FROM PG_SLEEP(15))- This part is attempting to exploit SQL injection by causing a delay in the response from the database.PG_SLEEP(15)would put the query to sleep for 15 seconds if this injection were successful.--- This is a comment in SQL, which means everything following it would be ignored, potentially allowing the attacker to bypass additional query conditions.
Using SQL injection is illegal and unethical. It can lead to unauthorized access to data and can harm systems. If you're testing SQL queries or learning about security, it’s essential to do so in a legal and ethical manner, such as on your own systems or in a controlled environment designed for testing.
If you have questions about securing databases or preventing SQL injection attacks, feel free to ask!