Andrius Merkys

Current ordering requirement seems to be in place to make the life easier both for servers and clients: * for servers: `chemical_formula_hill` can now be stored as a simple string...

I agree with @rartino, and would prefer not to have to support internal semantics in queries on string-valued properties.

@rartino > I had the idea that the contents of a collections should all go in a "contents" relationship, i.e., that the tag directly under `relationship` should be `contents` rather...

Good question. I have always thought `dimension_types` referred to the volume. But after re-reading the examples in the specification I am now a bit confused. Looking back, I can find...

> Edit: Under nperiodic_dimensions it is specifically mentioned that it is about the structures, So I think I will wait until I have heard a few more opinions on this....

While it is true that the specification is quite implicit about the actual meaning of "structure", I do not recall a requirement of all atoms to be bound. I think...

Introduction of `NULL` constant seems quite natural. Many programming languages and SQL have it, so maybe we could complement `IS KNOWN`/`IS UNKNOWN` with syntactically simpler and more powerful `NULL` constant?...

I gather that there are standardization problems with symmetry operator lists (I miss discussion on floating point vs. fraction representation of translation components). However, maybe we could standardize on [space...

> On the discussion of implementations - we concluded recently in a discussion that what would be useful is a very permissively licensed (e.g. CC0) implementation of a Hall symbol...

> aflow is GPL, which is compatible with CC0. Sadly, this is not true. GPL is only compatible with GPL.