Bug introduced in 11.0.0 and fixed in 11.1
A support case with the identification [CASE:3707497] was created.
[...] It does appear that
Dataset
typesetting in version 11 is not behaving properly, and I have forwarded an incident report to our developers with the information you provided. [...]
The problem:
{<|"a" -> Range[5]|>, <|"a" -> Missing["KeyAbsent", "a"]|>} // Dataset
More detailed example shows that 5
is the magic number and that it will be quite common for those who use KeyUnion
:
Table[<|ToString[i] -> Range[i]|>, {i, 2, 6}] // KeyUnion // Dataset
Keywords:
TypeSystem`PackageScope`AtomShape[34]
Missing["reason"]
does not work in general (e.g. the reason is not printed anymore when theDataset
is displayed)? $\endgroup$