documentationjoin¶
Type of operation: Join
Description¶
Temporal inner join, adding new columns in the output dataset.
Usage¶
join [ targetDataset ] [ , predicate ] ... [ , columnbinding ] ...
Argument |
Type |
Required |
Multiple |
|---|---|---|---|
targetDataset |
datasetref |
Optional |
Only one |
predicate |
bool |
Optional |
Can be multiple |
columnbinding |
expression |
Optional |
Can be multiple |
Accelerable¶
join is always accelerable if the input is accelerable. A dataset that only uses accelerable verbs can be accelerated, making queries on the dataset respond faster.
Examples¶
join on([email protected]), hostname:@host.name
Temporal inner join with dataset ‘host’, and extract the ‘name’ column from that ‘host’ table, calling the new column ‘hostname’ in the output.