@Override
    public void setValue(PreparedStatement st, int startIndex, BigDecimal value)
            throws SQLException {
        st.setDouble(startIndex, value.doubleValue());
    }
{@code BigDecimalAsDoubleType} maps BigDecimal to Double on the JDBC level

@author tiwe
querydsl-sql/src/main/java/com/querydsl/sql/types/BigDecimalAsDoubleType.java