Prepared Statement boolean vs. Bit Postgresql and Java

Question

I have some Problems with using PostgresSQL with Java. When i have a Prepared Query and one of the parameter is boolean like "blocked" i get this error message:

ERROR column "blocked" is Type bit but Expression has type boolean

My Code for this is:

else if (param instanceof Boolean)
{
    p.setBoolean(j, (boolean) param);
}

Any idears how to solve this?

Answer 1

A Postgres bit is not a boolean . You can insert a bit value using string 1 or 0 :

p.setBoolean(j, param ? "1" : "0");