UnionExpression Class
Definition
Important
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An expression that represents a UNION operation in a SQL tree.
This type is typically used by database providers (and other extensions). It is generally not used in application code.
public class UnionExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SetOperationBasetype UnionExpression = class
inherit SetOperationBasePublic Class UnionExpression
Inherits SetOperationBase- Inheritance
Constructors
| UnionExpression(String, SelectExpression, SelectExpression, Boolean, IReadOnlyDictionary<String,IAnnotation>) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
| UnionExpression(String, SelectExpression, SelectExpression, Boolean) |
Creates a new instance of the UnionExpression class. |
Properties
| Alias |
The alias assigned to this table source. (Inherited from SetOperationBase) |
| Annotations |
An indexed collection of annotations associated with this table expression. (Inherited from TableExpressionBase) |
| IsDistinct |
The bool value indicating whether result will remove duplicate rows. (Inherited from SetOperationBase) |
| NodeType | (Inherited from TableExpressionBase) |
| Source1 |
The first source of the set operation. (Inherited from SetOperationBase) |
| Source2 |
The second source of the set operation. (Inherited from SetOperationBase) |
| Type | (Inherited from TableExpressionBase) |
Methods
| AddAnnotation(String, Object) |
Adds an annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from TableExpressionBase) |
| Clone(String, ExpressionVisitor) |
Creates a new object that is a copy of the current instance. |
| Clone(String, ExpressionVisitor) |
Creates a new object that is a copy of the current instance. (Inherited from TableExpressionBase) |
| CreateWithAnnotations(IEnumerable<IAnnotation>) |
Creates an object like this with specified annotations. |
| CreateWithAnnotations(IEnumerable<IAnnotation>) |
Creates an object like this with specified annotations. (Inherited from TableExpressionBase) |
| Equals(Object) | System.Linq.Expressions.Expression.Equals(System.Object) |
| FindAnnotation(String) |
Gets the annotation with the given name, returning |
| GetAnnotations() |
Gets all annotations on the current object. (Inherited from TableExpressionBase) |
| GetHashCode() | System.Linq.Expressions.Expression.GetHashCode |
| GetRequiredAlias() |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. (Inherited from TableExpressionBase) |
| Print(ExpressionPrinter) |
Creates a printable string representation of the given expression using ExpressionPrinter. |
| PrintAnnotations(ExpressionPrinter) |
Creates a printable string representation of annotations associated with the given expression using ExpressionPrinter. (Inherited from TableExpressionBase) |
| Quote() |
Quotes the expression; that is, returns an expression that, when evaluated, would construct an expression identical to this one. Used to generate code for precompiled queries, which reconstructs this expression. |
| Quote() |
Quotes the expression; that is, returns an expression that, when evaluated, would construct an expression identical to this one. Used to generate code for precompiled queries, which reconstructs this expression. (Inherited from TableExpressionBase) |
| Update(SelectExpression, SelectExpression) |
Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression. |
| VisitChildren(ExpressionVisitor) | Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible. |
| WithAlias(String) |
Returns a copy of the current TableExpressionBase with the new provided alias. |
| WithAlias(String) |
Returns a copy of the current TableExpressionBase with the new provided alias. (Inherited from TableExpressionBase) |
| WithAnnotations(IReadOnlyDictionary<String,IAnnotation>) |
Creates an object like this with specified annotations. |
| WithAnnotations(IReadOnlyDictionary<String,IAnnotation>) |
Creates an object like this with specified annotations. (Inherited from TableExpressionBase) |
Explicit Interface Implementations
| IPrintableExpression.Print(ExpressionPrinter) |
Creates a printable string representation of the given expression using ExpressionPrinter. (Inherited from TableExpressionBase) |
Extension Methods
| UnwrapJoin(TableExpressionBase) |
If the given |
