"queries with operations" vignette

[lvaudor]

Not sure it's the right title but the idea would be to include:

filter results

mutate results

summarise results

[maelle]

wouldn't the Get started vignette cover spq_mutate(), spq_filter() and spq_summarise()?

[lvaudor]

I don't know, I'd rather have a rather short "Get started". Maybe add a last section to Get Started with an example (as a teaser) of a query comprising spq_filter, spq_mutate, spq_summarise which then will naturally lead to the second "query with operations" vignette?