default T map(ResultSet r, String columnLabel, StatementContext ctx) throws SQLException {
        return map(r, r.findColumn(columnLabel), ctx);
    }
Map the given column of the current row of the result set to an Object. This method should not cause the result
set to advance; allow Jdbi to do that, please.

@param r           the result set being iterated
@param columnLabel the column label to map
@param ctx         the statement context
@return the value to return for this column
@throws SQLException if anything goes wrong go ahead and let this percolate; Jdbi will handle it
core/src/main/java/org/jdbi/v3/core/mapper/ColumnMapper.java