| use dataverse demo_aql; | |
| declare type CustomerType as open { | |
| cid: int32, | |
| name: string, | |
| age: int32?, | |
| address: AddressType?, | |
| interests: {{string}}, | |
| children: [ { name: string, age: int32? } ] | |
| } | |
| declare type AddressType as open { | |
| number: int32, | |
| street: string, | |
| city: string | |
| } | |
| declare nodegroup group1 on nc1, nc2; | |
| declare dataset Customers(CustomerType) | |
| primary key cid on group1; | |
| write output to nc1:"/tmp/03-count-cust-age.adm"; | |
| count( | |
| for $c in dataset('Customers') | |
| where not(is-null($c.age)) | |
| return $c | |
| ) |