Will they blend? Twitter and PostGreSQL Database

This is a mini-workflow for Data WareHousing, in particular it archiviates daily tweets.History is saved in a PostGreSQL database (but it could be any database). This workflow is supposed to run every day. Every day it collects yesterday's tweets from Twitter and last month's tweets from a PostGreSQL database and blends them together to produce the tag cloud of the month. ... and yes! They blend.

This is a companion discussion topic for the original entry at https://kni.me/w/S_C5YoMnB1MvgihD