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

@return a <code>int</code> array object that contains the column ids
        for the rowset which has this as the match columns.

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