/// <summary>
 /// Dispatches to the specific visit method for this node type.
 /// </summary>
 /// <param name="visitor">The visitor to visit this node with.</param>
 /// <returns>The result of visiting this node.</returns>
 public virtual Expression AcceptDeclarationSql(IQueryVisitor visitor)
 {
     return(visitor.VisitFieldDeclaration(this));
 }