I’m not aware of any JIRA on it. The easiest way to find out will be to look at the git history of Hive’s grammar file and see when it changed.
As for taking out, we shouldn’t since it’s valid SQL and we’re pushing towards more ANSI compliance. Alan. > On Mar 9, 2016, at 01:50, Dmitry Tolpeko <dmtolp...@gmail.com> wrote: > > I noticed that Hive allows you to execute SELECT without FROM clause (tested > in Hive 0.14, Hive 1.2.1): > > SELECT 1+1; > > In which version was it added (is there a Jira)? I see that it is not > mentioned in docs > https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Select > > So the question whether it is official and will not be removed in future. > > Thanks, > > Dmitry
