public virtual SqlExpression VisitBinary(SqlBinaryExpression binaryEpression)
{
var left = binaryEpression.Left;
var right = binaryEpression.Right;
if (left != null)
left = Visit(left);
if (right != null)
right = Visit(right);
return SqlExpression.Binary(left, binaryEpression.ExpressionType, right);
}