I am not aware of any such implicit connection of ledger and commutative property, also couldn't find anything as my google-fu is letting me down. Anything I can refer to? Generally curious to know use of term ledger outside of accounting and blockchains.
I have seen it used to mean WAL before, so I am taking this with a dose of skepticism.
It is refreshing to see multiple projects with arrow/datafusion trying to bank on existing and user friendly spark's API instead of reinventing the API all over again.
There is likes of comet and blaze that replace execution backend of spark with datafusion and then you have single process alternatives like sail trying to settle in "not so big data" category.
I am watching evolution of projects powered by datafusion and compatible with spark with keen eye. Early days but quite exciting.
Its great to have a single entrypoint for multiple backends. What I am trying to understand and couldn't find much information related to: How does the use of multiple engines in Ibis impact the consistency of results for the same input and query, particularly in relation to semantic differences among the engines?
Is there a way for general public to see the status of open sluice gates and water levels in various parts of netherlands? A live datastream might be the best!