OPAL Join Verbs

Verb	Description
exists	Return the rows from the default dataset that have a…
flatten	Given an input of object or array type, recursively…
flatten_all	Given an input of object or array type, recursively…
flatten_leaves	Given an input of object or array type, recursively…
flatten_single	Given an input of object or array type, flatten the…
follow	Return the rows from the additional joined dataset…
fulljoin	Temporal full join, adding new columns in the output…
join	Temporal inner join, adding new columns in the…
leftjoin	Temporal left join, adding new columns in the output…
lookaround_join	Lookaround join is a type of inner join. Where this…
lookup	Find matching rows in a resource, making new columns…
surrounding	Rows from the “right” dataset that fall within the…
union	Create a new event dataset, consisting of events…
update_resource	Update the current resource by merging an event (or…