RedisGraph 命令

这些是与 RedisGraph 模块 交互的命令。下面是一个简短的示例，以及命令本身的文档。

创建一个图，添加两个节点(Create a graph, adding two nodes)

import redis
from redis.graph.node import Node

john = Node(label="person", properties={"name": "John Doe", "age": 33}
jane = Node(label="person", properties={"name": "Jane Doe", "age": 34}

r = redis.Redis()
graph = r.graph()
graph.add_node(john)
graph.add_node(jane)
graph.add_node(pat)
graph.commit()

class redis.commands.graph.node.Node(node_id=None, alias=None, label=None, properties=None)

A node within the graph.

class redis.commands.graph.edge.Edge(src_node, relation, dest_node, edge_id=None, properties=None)

An edge connecting two nodes.

class redis.commands.graph.commands.GraphCommands

RedisGraph Commands

bulk(**kwargs)

Internal only. Not supported.

commit()

Create entire graph.

config(name, value=None, set=False)

Retrieve or update a RedisGraph configuration. For more information see https://redis.io/commands/graph.config-get/.

Args:

namestr

The name of the configuration

value :

The value we want to set (can be used only when set is on)

setbool

Turn on to set a configuration. Default behavior is get.

delete()

Deletes graph. For more information see DELETE. # noqa

execution_plan(query, params=None)

Get the execution plan for given query, GRAPH.EXPLAIN returns an array of operations.

参数:

• query -- the query that will be executed

• params -- query parameters

explain(query, params=None)

Get the execution plan for given query, GRAPH.EXPLAIN returns ExecutionPlan object. For more information see GRAPH.EXPLAIN. # noqa

参数:

• query -- the query that will be executed

• params -- query parameters

flush()

Commit the graph and reset the edges and the nodes to zero length.

list_keys()

Lists all graph keys in the keyspace. For more information see GRAPH.LIST. # noqa

merge(pattern)

Merge pattern.

profile(query)

Execute a query and produce an execution plan augmented with metrics for each operation's execution. Return a string representation of a query execution plan, with details on results produced by and time spent in each operation. For more information see GRAPH.PROFILE. # noqa

query(q, params=None, timeout=None, read_only=False, profile=False)

Executes a query against the graph. For more information see GRAPH.QUERY. # noqa

Args:

qstr

The query.

paramsdict

Query parameters.

timeoutint

Maximum runtime for read queries in milliseconds.

read_onlybool

Executes a readonly query if set to True.

profilebool

Return details on results produced by and time spent in each operation.

slowlog()

Get a list containing up to 10 of the slowest queries issued against the given graph ID. For more information see GRAPH.SLOWLOG. # noqa

Each item in the list has the following structure: 1. A unix timestamp at which the log entry was processed. 2. The issued command. 3. The issued query. 4. The amount of time needed for its execution, in milliseconds.