I don’t know how this is possible. It may be a bug. I’m sorry that I am not fully reading these threads, nor running the test cases in the debugger. My time to spend on Calcite is very limited. I am trying to contribute my wisdom / experience / intuition. Discussion threads where I am forced to justify, repeatedly, every statement are exhausting. I am acting in good faith; I am not telling lies in the hope that you will not notice. But I ask you not to carry on such discussions at such great length that you win by default.
Julian > On Jan 7, 2019, at 11:47 AM, Vladimir Sitnikov <[email protected]> > wrote: > > Julian> No, it is not the “unknown collation” subset. It is more like > the “don’t care” subset. > > Would you please care to explain how the following is possible? (it is > from the start of the thread) > > LogicalProject(subset=[rel#11:Subset#1.NONE.[0]], > input=rel#9:Subset#0.NONE.[], Y=[$1]) > > I read that as follows: > "LogicalProject" consumes "don’t care" subset (see "input"), and it > claims to produce sorted rows (see "subset" which means the subset > LogicalProject belongs to). > I'm sure that is impossible. > > Vladimir
