@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Attr attr = (Attr) o;
        return name.equals(attr.name);
    }
Set the real column id in specific schemas.
indexr-segment/src/main/java/io/indexr/segment/rc/Attr.java