Aliases

Aliases is a part of the GraphQL standard They become useful when you have the need to have two fields in the query with the same name.

Most probable you will come to the following problem with metrics:

      count(distinct: Block_GasUsed)
      count(distinct: Block_Date)

This query is not valid for GraphQL and will not execute.

Use aliases to make the query valid and also more readable:

      uniqueGasValues: count(distinct: Block_GasUsed)
      uniqueDates: count(distinct: Block_Date)

tip

Aliases can also be used in sorting