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As the title says, what exactly is [15]?
I thought that there was an error on the 15th line of some file, but there is no file described on the 15th line. What the hell is it?

▪️ Background of the error
When I was building a system with Spring boot + Mybatis + PostgreSQL and described DDL and connected to local PostgreSQL, the following error occurred.

▪️ Error details

▪️DDL

CREATE TABLE IF NOT EXISTS item (
id SERIAL NOT NULL,
name varchar (255),
price real,
vendor varchar (255),
PRIMARY KEY (id))