On: Is a Dataframe Just a Table? (2019) [pdf]

[gpderetta]

not the parent (but I like their thinking); I think the key concept is to treat the hash map as just a (potentially primary) index over your data. Of course keeping secondary indices up to date is now the job of the application (or the abstraction layer)

[kumarvvr → gpderetta]

But isnt that just a sql db?

[lincpa → kumarvvr]

But it is also Nosql (hash-map). It is flexible according to your needs, as sqldb or Nosql or data structure.

[gpderetta → kumarvvr]

the idea is, if for whatever reason you do not have access to a proper DB, can you build your own relational model on top of the bits you have?