A QueryResult is responsible for processing the data that was returned by RedisGraph.

https://redis.io/docs/stack/graph/design/result_structure/

The resulting struct contains the result set header and records, statistics about the query executed, and referential lists of entity identifiers, specifically labels, property keys, and relationship types.

The labels refer to the labels attribute in Node entities in the graph, The property keys are the keys found in any Node or Relationship property maps. The relationship types are the type attributes of Relationship entities in the graph.

example

Example

alias RedisGraph.Graph

# Create a connection using Redix
{:ok, conn} = Redix.start_link("redis://localhost:6379")

# Create a graph
graph = Graph.new(%{name: "imdb"})

# Create queries and send them to RedisGraph
create_query = "CREATE (a:actor {name: 'Hugh Jackman'})-[:act]->(m:movie {title:'Wolverine'}) RETURN a"
{:ok, _query_result} = RedisGraph.query(conn, graph.name, create_query)

match_query = "MATCH (a:actor {name: 'Hugh Jackman'})-[:act]->(m:movie {title:'Wolverine'}) RETURN a"
{:ok, query_result} = RedisGraph.query(conn, graph.name, match_query)

# Show the resulting statistics
IO.inspect(query_result.statistics)
 # Query result statistics
%{
  "Labels added" => nil,
  "Nodes created" => nil,
  "Nodes deleted" => nil,
  "Properties set" => nil,
  "Query internal execution time" => "0.228669",
  "Relationships created" => nil,
  "Relationships deleted" => nil
}