public String getIndexFields() {
        String orderFieldName = getOrderFieldName();
        if (orderFieldName == null) return getKeyFieldName();
        else return String.join(",", getKeyFieldName(), orderFieldName);
    }
public String getIndexFields() {
        String orderFieldName = getOrderFieldName();
        if (orderFieldName == null) return getKeyFieldName();
        else return String.join(",", getKeyFieldName(), orderFieldName);
    }
public String getIndexFields ( ) { String orderFieldName = getOrderFieldName ( ) ; if ( orderFieldName == null ) return getKeyFieldName ( ) ; else return String . join ( "," , getKeyFieldName ( ) , orderFieldName ) ; }
Gets index fields for the spec table. WARNING: this MUST be called on a spec table (i.e., one of the constant
tables defined in this class). Otherwise, it could return fields that should not be indexed.
@return
Gets index fields for the spec table . WARNING : this MUST be called on a spec table ( i . e . one of the constant tables defined in this class ) . Otherwise it could return fields that should not be indexed .