# Namespace Npgsql.EntityFrameworkCore.PostgreSQL.Metadata

### Classes

CockroachDbInterleaveInParent

  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.

NpgsqlValueGenerationStrategyExtensions

  Extension methods over NpgsqlValueGenerationStrategy.

PostgresCollation

  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.

PostgresEnum

  Represents the metadata for a PostgreSQL enum.

PostgresExtension

  Represents the metadata for a PostgreSQL extension.

PostgresRange

  Represents the metadata for a PostgreSQL range.

### Enums

NpgsqlValueGenerationStrategy

  Defines strategies to use when generating values for database columns.

NullSortOrder

  Options for modifying sort ordering of `NULL`-values in indexes.

SortOrder

  Options for modifying sort ordering of index values.