CrateDB version: 3.1.3
Environment description: any environment
Problem description: DISTINCT function for selects is not working since 3.1.3. Results are not unique whenever selecting more than one field in the query. Limiting DISTINCT with brackets, i.e., DISTINCT(field), does not help.
Steps to reproduce:
Import sample data (tweets).
select distinct created_at, id from tweets limit 100;yields all tweets.
select distinct created_at from tweets limit 100;yields only a few tweets.
Run same queries for 3.1.2 and both queries yield the same results.