# Graph












RedisGraph is the first queryable [Property Graph](http://github.com/opencypher/openCypher/blob/master/docs/property-graph-model.adoc) database to use [sparse matrices](http://en.wikipedia.org/wiki/Sparse_matrix) to represent the [adjacency matrix](http://en.wikipedia.org/wiki/Adjacency_matrix) in graphs and [linear algebra](http://faculty.cse.tamu.edu/davis/GraphBLAS.html) to query the graph.

## Primary features

- Based on the [Property Graph Model](http://github.com/opencypher/openCypher/blob/master/docs/property-graph-model.adoc)
    - Nodes (vertices) and Relationships (edges) that may have attributes
    - Nodes that can be labeled
    - Relationships have a relationship type
- Graphs represented as sparse adjacency matrices
- [Cypher](http://www.opencypher.org/) as query language
    - Cypher queries translated into linear algebra expressions

## Commands

See [Graph commands](http://redis.io/docs/latest/operate/oss_and_stack/stack-with-enterprise/deprecated-features/graph/commands) for a list of graph commands that are supported in Redis Enterprise.

## Clients

For a list of available RedisGraph clients, see [RedisGraph client libraries](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/clients.md).

## Configuration

See [Configuration parameters](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/configuration.md) for the complete list of RedisGraph configuration parameters.

To learn which configuration parameters are supported in Redis Enterprise, see [Graph configuration compatibility with Redis Enterprise](http://redis.io/docs/latest/operate/oss_and_stack/stack-with-enterprise/deprecated-features/graph/config).

## Design

For an overview of RedisGraph's design, see [RedisGraph: A High Performance In-Memory Graph Database](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/design/_index.md).

### Client specification

RedisGraph client libraries should follow the [Technical specification for writing RedisGraph client libraries](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/design/client_spec.md).

### Result set structure

[RedisGraph result set structure](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/design/result_structure.md) describes the format RedisGraph uses to print data when using `redis-cli`.

### GRAPH.BULK endpoint

You can import new graphs from CSV files using `redisgraph-bulk-loader`.

See the [`GRAPH.BULK` implementation details](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/design/bulk_spec.md) for more information.

## Data types

RedisGraph supports a number of distinct data types, including:

- Graph types:
    - Nodes
    - Relationships
    - Paths

- Scalar types:
    - Strings
    - Booleans
    - Integers
    - Floating-point values
    - Geospatial points
    - Null
  
- Collection types:
    - Arrays
    - Maps

See [RedisGraph data types](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/datatypes.md) for details.

## Cypher coverage

RedisGraph implements a subset of the Cypher language. See [Cypher coverage](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/cypher_support.md) for more information.

## Path algorithms

To learn how to find single-pair and single-source paths using `algo.SPpaths` and `algo.SSpaths`, see [Path algorithms](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/path_algorithm.md).

## Known limitations

RedisGraph has several [known limitations](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/known_limitations.md).

## More info

- [Graph quick start](http://redis.io/docs/latest/operate/oss_and_stack/stack-with-enterprise/deprecated-features/graph/graph-quickstart)

- [RedisGraph documentation on GitHub](http://github.com/RedisGraph/RedisGraph/tree/master/docs/docs)

- [References](http://github.com/RedisGraph/RedisGraph/blob/master/docs/docs/References.md)

- [RedisGraph source](http://github.com/RedisGraph/RedisGraph/)