public String[] getMatchColumnNames() throws SQLException {
        throw new UnsupportedOperationException();
    }
Retrieves the column name as <code>String</code> array
that was set using <code>setMatchColumn(String [])</code>
for this rowset.

@return a <code>String</code> array object that contains the column names
        for the rowset which has this the match columns

@throws SQLException if an error occurs or column name is not set
src/main/java/org/replicadb/rowset/sun/rowset/internal/SyncResolverImpl.java