src/RocknRoot/StrayFw/Database/Postgres/Mutation/DeleteForeignKey.php
public static function statement(Database $database, $table, $key)
    {
        $statement = $database->getMasterLink()->prepare('ALTER TABLE ' . $table . ' DROP CONSTRAINT IF EXISTS fk_' . $key);

        return $statement;
    }
public static function statement(Database $database, $table, $key)
    {
        $statement = $database->getMasterLink()->prepare('ALTER TABLE ' . $table . ' DROP CONSTRAINT IF EXISTS fk_' . $key);

        return $statement;
    }
Prepare and return according PDO statement.

@param  Database     $database database
@param  string       $table    table name
@param  string       $key      foreign key name
@return \PDOStatement $statement prepared query