A QueryResult containing returned fields and query metadata.

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 label attribute of either Node entities in the graph, The property keys are the keys found in any Node or Edge property maps. The relationship types are the relation attributes of Edge entities in the graph.

Example

# Create a query to fetch some data
query = "MATCH (p:person)-[v:visited]->(c:country) RETURN p.name, p.age, v.purpose, c.name"

# Execute the query
{:ok, query_result} = RedisGraph.query(conn, graph.name, query)

# Show the resulting statistics
IO.inspect(query_result.statistics)

# Pretty print the results using the Scribe lib
IO.puts(QueryResult.pretty_print(query_result))

which gives the following results:

# 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
}

# Pretty printed output
+----------------+-------------+-----------------+--------------+
| "p.name"       | "p.age"     | "v.purpose"     | "c.name"     |
+----------------+-------------+-----------------+--------------+
| "John Doe"     | 33          | nil             | "Japan"      |
+----------------+-------------+-----------------+--------------+