Multiple Named Query Blocks
From now on, to run the queries, you’ll need to have loaded the million triple movie dataset.
Queries can be issued as multiples.
For queries labelled
q1, ..., qn issued as a multiple query block, the JSON
result will contain labelled answer blocks
q1, ..., qn for each query.
If a block is labelled with
var, no results are returned for that
Queries issued in this way are independent.
The visualization here finds the overlap in the two queries based on
uid, but the JSON result contains the independent answer for each query.
So, In this case, we are visualizing the overlap between two distinct queries.
Query variables are one of the most powerful features of GraphQL+-. Query variables allow the answers from one block to be used in another, joining the two queries. You’ll learn about query variables in the following pages.