tremor-query is a query language created in 2019.
| #1645on PLDB | 5Years Old |
The tremor query language, tremor-query or trickle is an interpreted statement-oriented language designed for continuous online structured queries with support filtering, extraction, transformation and streaming of structured data in a stream or event-based processing system.
define grouper::bucket operator kfc;
define script categorize
script
let $rate = 1;
let $class = event.`group`;
{ "event": event, "rate": $rate, "class": $class };
end;
create script categorize;
# Stream ingested data into categorize script
select event from in into categorize;
create operator kfc;
# Stream scripted events into kfc bucket operator
select event from categorize into kfc;
# Stream bucketed events into out stream
select event from kfc into out;| Feature | Supported | Token | Example |
|---|---|---|---|
| Comments | ✓ | # A comment |
|
| Line Comments | ✓ | # | # A comment |
| Semantic Indentation | X |