# Class NpgsqlTypeMappingPostprocessor

Namespace
  Npgsql.EntityFrameworkCore.PostgreSQL.Query.Internal

Assembly
  Npgsql.EntityFrameworkCore.PostgreSQL.dll

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.

    public class NpgsqlTypeMappingPostprocessor : RelationalTypeMappingPostprocessor

Inheritance
  object
  ExpressionVisitor
  RelationalTypeMappingPostprocessor
  NpgsqlTypeMappingPostprocessor

Inherited Members
  RelationalTypeMappingPostprocessor.Process(Expression)
  RelationalTypeMappingPostprocessor.TryGetInferredTypeMapping(string, string, out RelationalTypeMapping)
  RelationalTypeMappingPostprocessor.ApplyTypeMappingsOnValuesExpression(ValuesExpression)
  RelationalTypeMappingPostprocessor.Dependencies
  RelationalTypeMappingPostprocessor.RelationalDependencies
  RelationalTypeMappingPostprocessor.QueryCompilationContext
  ExpressionVisitor.Visit(ReadOnlyCollection<Expression>)
  ExpressionVisitor.Visit(Expression)
  ExpressionVisitor.VisitAndConvert<T>(ReadOnlyCollection<T>, string)
  ExpressionVisitor.VisitAndConvert<T>(T, string)
  ExpressionVisitor.VisitBinary(BinaryExpression)
  ExpressionVisitor.VisitBlock(BlockExpression)
  ExpressionVisitor.VisitCatchBlock(CatchBlock)
  ExpressionVisitor.VisitConditional(ConditionalExpression)
  ExpressionVisitor.VisitConstant(ConstantExpression)
  ExpressionVisitor.VisitDebugInfo(DebugInfoExpression)
  ExpressionVisitor.VisitDefault(DefaultExpression)
  ExpressionVisitor.VisitDynamic(DynamicExpression)
  ExpressionVisitor.VisitElementInit(ElementInit)
  ExpressionVisitor.VisitGoto(GotoExpression)
  ExpressionVisitor.VisitIndex(IndexExpression)
  ExpressionVisitor.VisitInvocation(InvocationExpression)
  ExpressionVisitor.VisitLabel(LabelExpression)
  ExpressionVisitor.VisitLabelTarget(LabelTarget)
  ExpressionVisitor.VisitLambda<T>(Expression<T>)
  ExpressionVisitor.VisitListInit(ListInitExpression)
  ExpressionVisitor.VisitLoop(LoopExpression)
  ExpressionVisitor.VisitMember(MemberExpression)
  ExpressionVisitor.VisitMemberAssignment(MemberAssignment)
  ExpressionVisitor.VisitMemberBinding(MemberBinding)
  ExpressionVisitor.VisitMemberInit(MemberInitExpression)
  ExpressionVisitor.VisitMemberListBinding(MemberListBinding)
  ExpressionVisitor.VisitMemberMemberBinding(MemberMemberBinding)
  ExpressionVisitor.VisitMethodCall(MethodCallExpression)
  ExpressionVisitor.VisitNew(NewExpression)
  ExpressionVisitor.VisitNewArray(NewArrayExpression)
  ExpressionVisitor.VisitParameter(ParameterExpression)
  ExpressionVisitor.VisitRuntimeVariables(RuntimeVariablesExpression)
  ExpressionVisitor.VisitSwitch(SwitchExpression)
  ExpressionVisitor.VisitSwitchCase(SwitchCase)
  ExpressionVisitor.VisitTry(TryExpression)
  ExpressionVisitor.VisitTypeBinary(TypeBinaryExpression)
  ExpressionVisitor.VisitUnary(UnaryExpression)
  ExpressionVisitor.Visit<T>(ReadOnlyCollection<T>, Func<T, T>)
  object.Equals(object)
  object.Equals(object, object)
  object.GetHashCode()
  object.GetType()
  object.MemberwiseClone()
  object.ReferenceEquals(object, object)
  object.ToString()

## Constructors

### NpgsqlTypeMappingPostprocessor(QueryTranslationPostprocessorDependencies, RelationalQueryTranslationPostprocessorDependencies, RelationalQueryCompilationContext)

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.

    public NpgsqlTypeMappingPostprocessor(QueryTranslationPostprocessorDependencies dependencies, RelationalQueryTranslationPostprocessorDependencies relationalDependencies, RelationalQueryCompilationContext queryCompilationContext)

#### Parameters

`dependencies` QueryTranslationPostprocessorDependencies
`relationalDependencies` RelationalQueryTranslationPostprocessorDependencies
`queryCompilationContext` RelationalQueryCompilationContext

## Methods

### VisitExtension(Expression)

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.

    protected override Expression VisitExtension(Expression expression)

#### Parameters

`expression` Expression

#### Returns

Expression