In RethinkDB, you can do a ‘sum’ and a GROUP BY like so:
r.db('test')
.table('salaries')
.group('role')
.sum('salary')
.ungroup()
.map({Title: r.row('group'), Salary: r.row('reduction')})
If you just want an overall sum, do this:
r.db('test')
.table('salaries')
.sum('salary')
|
Salary
|
Title
|
|
|
1
|
403000
|
null
|
|
2
|
217000
|
Designer
|
|
3
|
425000
|
Manager
|