npgsql/npgsql
Npgsql
Npgsql is a .NET data provider and client library that enables applications to connect, execute queries, and manage data within PostgreSQL databases. It functions as a connection manager and translation layer between the application and the database server.
The project features a connection manager capable of multi-host connectivity, providing load balancing and automatic failover across multiple servers. It includes specialized support for high-volume data import and export through bulk data operations and a mapping system that translates complex database types, such as arrays and JSON, into native objects.
The library provides an object-relational mapping layer with integration for Entity Framework and Entity Framework Core to map application objects to database tables. General capabilities include connection pool management, binary protocol implementation, and state-based connection multiplexing.
Features
- PostgreSQL Database Clients - Provides a comprehensive client library for .NET applications to connect and interact with PostgreSQL databases.
- Complex Data Type Mappings - Translates complex PostgreSQL types like arrays and JSON into native .NET objects and vice versa.
- Database Connection Managers - Manages the lifecycle of database connections with built-in support for load balancing and failover.
- PostgreSQL Connectors - Acts as the primary .NET data provider for establishing connections and executing queries against PostgreSQL.
- Connection Pool Managers - Maintains a cache of open connections to reduce the overhead of establishing new network sockets.
- PostgreSQL Client Libraries - Provides a comprehensive set of tools for server connectivity, bulk operations, and complex type handling.
- PostgreSQL Integrations - Provides a specialized integration layer for .NET applications to execute queries and manage data in PostgreSQL.
- Binary Protocol Implementations - Implements the PostgreSQL binary wire protocol to ensure efficient high-performance communication between the application and server.
- Bulk Data Transfers via COPY - Implements the PostgreSQL COPY protocol for high-throughput ingestion of large datasets directly into tables.
- PostgreSQL Bulk Importers - Uses specialized binary and copy protocols for the high-throughput ingestion of large datasets into PostgreSQL.
- Bulk Data Operations - Provides high-efficiency utilities for importing and exporting large volumes of data to maximize throughput.
- Entity Framework Implementations - Integrates with Entity Framework Core to map application objects to database tables using a type-safe ORM.
- Object-Relational Mapping - Provides an object-relational mapping layer to bridge .NET application objects and PostgreSQL database records.
- PostgreSQL Load Balancers - Distributes application requests across multiple PostgreSQL servers to ensure high availability and automatic failover.
- Relational Data Mapping - Translates relational database tables and complex types into native objects for programmatic data manipulation.
- .NET PostgreSQL ORMs - Translates database tables into native .NET objects through an object-relational mapping system.
- Connection Multiplexing - Coordinates multiple requests and responses over a single persistent network connection by tracking session state.
- Multi-Host Connection Managers - Manages connections across multiple servers to enable automatic failover and load balancing.
- Database Stream Buffering - Uses internal buffering to minimize system calls and maximize network throughput during large data transfers.
- Database Drivers - PostgreSQL data provider for .NET.
- Databases and Storage - Data provider for PostgreSQL connectivity.
- Data Connectors - PostgreSQL data provider for .NET applications and data integration.
- Database Drivers - .NET database driver.
Star history
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