RE: GROUP BY TUMBLE on ROW range

2017-10-18 Thread Stefano Bortoli
Bortoli Cc: user@flink.apache.org Subject: Re: GROUP BY TUMBLE on ROW range Hi Stefano, this is not supported in Flink's SQL and we would need new Group Window functions (like TUMBLE) for this. A TUMBLE_COUNT function would be somewhat similar to SESSION, which also requires checks on the s

Re: GROUP BY TUMBLE on ROW range

2017-10-17 Thread Fabian Hueske
Hi Stefano, this is not supported in Flink's SQL and we would need new Group Window functions (like TUMBLE) for this. A TUMBLE_COUNT function would be somewhat similar to SESSION, which also requires checks on the sorted neighboring rows to identify the window of a row. Such a function would first