co_dh

I have to warning everyone: Windows terminal with true color , possibly with tmux, is very slow. There is a half second delay from key press to response. I am in a vdi. Your miles varies.

But why do you need serialization? Because the data structure on disk is not the same as in memory. Arthur Whitney's k/q/kdb+ solved this problem by making them the same. An array has the same format in memory and on disk, so there is no serialization, and even better, you can mmap files into memory, so you don't need cache!

He also removed the capability to define a structure, and force you to use dictionary(structure) of array, instead of array of structure.

At this price(360), I may want to try glove80.

In kdb+/q, it is only 1 character ~

I wake up.

Any language with repl can have it . Python for example

A single threaded OS. I remember that sometimes I launched a slow process in emacs, and then can do nothing but wait.

What is DDD?

Q/kdb, it is practical, and you can find a good pay job with it.

Group is actually like inverse a mapping. Given an array A which map index to value, group A map value to index. A common idiom is: desc count each group A , which list most frequent element first

In q/kdb. iPhone replaced q with a. Sorry

I am happily programming in a for 6 years now, and will not give it up

Me too