SELECT (Stream)

• can be a field name, a constant, or their association, such as temperature, weather.humidity, 114514, 1 + 2 and .
• some_interval represents a period of time. See Intervals.

•               | HOPPING  some_interval some_interval
                | SESSION  some_interval

SELECT * FROM my_stream EMIT CHANGES;

• Filtering rows:

• Joining streams:

• Grouping records: