tell me the base for graphs with weights

Question

Python

the next task

is a point and there are many connections with other points,
there are statistics on the number of point-to-point connections,

you need to choose one connection from a point to another point, randomly, but the distribution should depend on the weight of the connection,
that is, if according to statistics 1 connection - in 100 cases, and 2 - 1 case, then the 1st connection should be selected about 100 times more often

done on sql, but I want something faster

, preferably with libraries under python

thanks

Answer 1

KPZ "Count with weights"

I. Repin, oil on canvas.

Answer 2

postgresql supports scripting languages, perl, python, php, etc. in general, you can perform intermediate calculations on mongo - there is a good mapReduce

Answer 3

on postgres and made
no intermediate calculations, everything has already been calculated, you just need to choose
looking for a ready-made specialized solution

Answer 4

look at neo4j