Maxim Akhmedov

Now import tool always produces optional types. It should be possible to check against null count from the parquet metadata, and produce non-optional columns if null count = 0.

Additional fields in query state table

1

It would be great to make start_query keep more information from the context of an http-handler that started this query: trace id, user-agent, client's endpoint. First is useful to have...

Similar to how user transaction controls the lifetime of an operation (providing a functionality of automatic operation stop on ctrl-C/death of parental process), we should have similar thing in QT...