SELECT (Stream)

• can be a field name, a constant, or their association, such as temperature, weather.humidity, 114514, 1 + 2, and `COUNT(*)` . Note that the last one is a raw column name which is used when a column name contains function names. See Special Characters.

• window_type ::= TUMBLING some_interval
                | SLIDING  some_interval

• A simple query:

SELECT * FROM my_stream EMIT CHANGES;

• Filtering rows:

• Joining streams:

• Grouping records: