SqlNullabilityProcessor.VisitScalarSubquery Method

Definition

Namespace:

Microsoft.EntityFrameworkCore.Query

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Package:

Microsoft.EntityFrameworkCore.Relational v8.0.0

Visits a ScalarSubqueryExpression and computes its nullability.

protected virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression VisitScalarSubquery (Microsoft.EntityFrameworkCore.Query.SqlExpressions.ScalarSubqueryExpression scalarSubqueryExpression, bool allowOptimizedExpansion, out bool nullable);

abstract member VisitScalarSubquery : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ScalarSubqueryExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.VisitScalarSubquery : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ScalarSubqueryExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression

Protected Overridable Function VisitScalarSubquery (scalarSubqueryExpression As ScalarSubqueryExpression, allowOptimizedExpansion As Boolean, ByRef nullable As Boolean) As SqlExpression

Parameters

scalarSubqueryExpression

ScalarSubqueryExpression

A scalar subquery expression to visit.

allowOptimizedExpansion

Boolean

A bool value indicating if optimized expansion which considers null value as false value is allowed.

nullable

Boolean

A bool value indicating whether the sql expression is nullable.

Returns

SqlExpression

An optimized sql expression.