presto-parser/src/main/java/io/prestosql/sql/tree/RenameSchema.java/RenameSchema/equals
class RenameSchema:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if ((obj == null) || (getClass() != obj.getClass())) {
            return false;
        }
        RenameSchema o = (RenameSchema) obj;
        return Objects.equals(source, o.source) &&
                Objects.equals(target, o.target);
    }