# Class NpgsqlQueryableAggregateMethodTranslator

Namespace
  Npgsql.EntityFrameworkCore.PostgreSQL.Query.ExpressionTranslators.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 NpgsqlQueryableAggregateMethodTranslator : IAggregateMethodCallTranslator

Inheritance
  object
  NpgsqlQueryableAggregateMethodTranslator

Implements
  IAggregateMethodCallTranslator

Inherited Members
  object.Equals(object)
  object.Equals(object, object)
  object.GetHashCode()
  object.GetType()
  object.MemberwiseClone()
  object.ReferenceEquals(object, object)
  object.ToString()

## Constructors

### NpgsqlQueryableAggregateMethodTranslator(NpgsqlSqlExpressionFactory, IRelationalTypeMappingSource)

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 NpgsqlQueryableAggregateMethodTranslator(NpgsqlSqlExpressionFactory sqlExpressionFactory, IRelationalTypeMappingSource typeMappingSource)

#### Parameters

`sqlExpressionFactory` NpgsqlSqlExpressionFactory
`typeMappingSource` IRelationalTypeMappingSource

## Methods

### Translate(MethodInfo, EnumerableExpression, IReadOnlyList<SqlExpression>, IDiagnosticsLogger<Query>)

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 virtual SqlExpression? Translate(MethodInfo method, EnumerableExpression source, IReadOnlyList<SqlExpression> arguments, IDiagnosticsLogger<DbLoggerCategory.Query> logger)

#### Parameters

`method` MethodInfo
`source` EnumerableExpression
`arguments` IReadOnlyList<SqlExpression>
`logger` IDiagnosticsLogger<DbLoggerCategory.Query>

#### Returns

SqlExpression