SqlNullabilityProcessor.VisitDistinct Method
Definition
Important
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Visits a DistinctExpression and computes its nullability.
protected virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression VisitDistinct (Microsoft.EntityFrameworkCore.Query.SqlExpressions.DistinctExpression distinctExpression, bool allowOptimizedExpansion, out bool nullable);abstract member VisitDistinct : Microsoft.EntityFrameworkCore.Query.SqlExpressions.DistinctExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.VisitDistinct : Microsoft.EntityFrameworkCore.Query.SqlExpressions.DistinctExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpressionProtected Overridable Function VisitDistinct (distinctExpression As DistinctExpression, allowOptimizedExpansion As Boolean, ByRef nullable As Boolean) As SqlExpressionParameters
- distinctExpression
- DistinctExpression
A collate 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
An optimized sql expression.
Applies to
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Entity Framework