RelationalQueryTranslationPostprocessor.OptimizeSqlExpression 方法
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
注意
Use 'Optimize' method on RelationalParameterBasedSqlProcessor instead. If you have a case for optimizations to be performed here, please file an issue on github.com/dotnet/efcore.
优化 SQL 表达式。
protected virtual System.Linq.Expressions.Expression OptimizeSqlExpression (System.Linq.Expressions.Expression query);
[System.Obsolete("Use 'Optimize' method on RelationalParameterBasedSqlProcessor instead. If you have a case for optimizations to be performed here, please file an issue on github.com/dotnet/efcore.")]
protected virtual System.Linq.Expressions.Expression OptimizeSqlExpression (System.Linq.Expressions.Expression query);
abstract member OptimizeSqlExpression : System.Linq.Expressions.Expression -> System.Linq.Expressions.Expression
override this.OptimizeSqlExpression : System.Linq.Expressions.Expression -> System.Linq.Expressions.Expression
[<System.Obsolete("Use 'Optimize' method on RelationalParameterBasedSqlProcessor instead. If you have a case for optimizations to be performed here, please file an issue on github.com/dotnet/efcore.")>]
abstract member OptimizeSqlExpression : System.Linq.Expressions.Expression -> System.Linq.Expressions.Expression
override this.OptimizeSqlExpression : System.Linq.Expressions.Expression -> System.Linq.Expressions.Expression
Protected Overridable Function OptimizeSqlExpression (query As Expression) As Expression
参数
- query
- Expression
要优化的表达式。
返回
已优化 SQL 的表达式。
- 属性