Re: Issues with the handling of NULLs in Streaming Expressions

2019-11-14 Thread pratik@semandex
I am facing exactly the same issue right now. There is no way to check if a particular field is not present in tuple or is null. Was there any development related to this issue? Is there a work around? In my case, I have an incoming stream of tuples and I want to filter out all the tuples which d

Re: Issues with the handling of NULLs in Streaming Expressions

2019-06-06 Thread Joel Bernstein
Interesting questions. I suspect we need to beef up our test cases that deal with nulls and make sure they behave in a consistent manner. One of the things that likely needs to be looked at more carefully is how string literals are handled as opposed to nulls. In some cases I believe if null is en

Issues with the handling of NULLs in Streaming Expressions

2019-06-06 Thread Oleksandr Chornyi
Hi guys! I'm working on a generic query builder for Streaming Expressions which allows building various requests containing row level expressions (i.e. evaluators), aggregations/metrics, sorts, etc. On this way, I bumped into many issues related to the handling of NULL values by the engine. Here a