다음을 통해 공유

QuerySqlGenerator.GenerateEmptyProjection(SelectExpression) Method

  • Reference

Definition

Namespace:
Microsoft.EntityFrameworkCore.Query
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Package:
Microsoft.EntityFrameworkCore.Relational v8.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v9.0.0
Source:
QuerySqlGenerator.cs
Source:
QuerySqlGenerator.cs

Generates SQL for an empty projection for a SELECT expression. This is typically a single 1 literal, but can be overridden for providers which require a different format.

protected virtual void GenerateEmptyProjection (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression selectExpression);
abstract member GenerateEmptyProjection : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression -> unit
override this.GenerateEmptyProjection : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression -> unit
Protected Overridable Sub GenerateEmptyProjection (selectExpression As SelectExpression)

Parameters

selectExpression
SelectExpression

SelectExpression for which the empty projection will be generated.

Applies to