Postgres: Aggregation Queries
Aggregate fields
You can fetch aggregations on columns along with nodes using an aggregation query.
The name of the aggregate field is of the form <field-name> + _aggregate
.
Common aggregation functions are count
, sum
, avg
, max
, min
, etc. You
can see the complete specification of the aggregate field in the API
reference. Note that not
all aggregation functions are available for all data types.
Note
For more advanced use cases, you can use views or custom SQL functions.
Fetch aggregated data of an object
Example: Fetch a list of articles with aggregated data of their rating:
GraphiQL
Query Variables
Request Headers
No Schema Available
Fetch aggregated data on nested objects
The following is an example of a nested object query with aggregations on the array relationship between an author and articles.
Example: Fetch author with id "1" and a nested list of articles with aggregated data of their rating:
GraphiQL
Query Variables
Request Headers
No Schema Available