/// <summary>
/// Converts the specified <see cref="SqlUnion"/> expression tree to SQL text.
/// </summary>
/// <param name="sql">
/// The <see cref="SqlUnion"/> to convert to SQL text.
/// </param>
/// <param name="parameterCallback">
/// A delegate that is called when a SQL parameter is encountered while converting the SQL expression.
/// </param>
/// <returns>
/// The SQL text for the specified SQL expression tree.
/// </returns>
public static string ToSql(this SqlUnion sql, Action <SqlParameter> parameterCallback)
{
return(sql.ToSql(null, parameterCallback));
}
/// <summary>
/// Converts the specified <see cref="SqlUnion"/> expression tree to SQL text.
/// </summary>
/// <param name="sql">
/// The <see cref="SqlUnion"/> to convert to SQL text.
/// </param>
/// <returns>
/// The SQL text for the specified SQL expression tree.
/// </returns>
public static string ToSql(this SqlUnion sql)
{
return(sql.ToSql(null, null));
}