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Npgsql is the open source .NET data provider for PostgreSQL.

PostgreSQL/Npgsql provider for Entity Framework Core.

Npgsql.EntityFrameworkCore.PostgreSQL.Design

Json.NET plugin for Npgsql, allowing transparent serialization/deserialization of JSON objects directly to and from the database.

NodaTime plugin for Npgsql, allowing mapping of PostgreSQL date/time types to NodaTime types.

Naming Conventions for Entity Framework Core Tables and Columns.

NodaTime support plugin for PostgreSQL/Npgsql Entity Framework Core provider.

NetTopologySuite plugin for Npgsql, allowing mapping of PostGIS geometry types to NetTopologySuite types.

PostgreSQL provider for Entity Framework 6

NetTopologySuite PostGIS spatial support plugin for PostgreSQL/Npgsql Entity Framework Core provider.

Postgresql provider for Entity Framework 6 and above

PostGIS plugin for Npgsql, allowing mapping of PostGIS types to the legacy types (e.g. PostgisPoint).

PostGIS plugin for Npgsql, allowing raw byte access to PostGIS ypes.

AsyncRewriter

GeoJSON plugin for Npgsql, allowing mapping of PostGIS geometry types to GeoJSON types.

Postgresql provider for Entity Framework 5 and below

PostgreSQL provider for Entity Framework 5

dotnet-rewrite-async

Entity Framework Core for automatically adding check constraints in various scenarios.