Optimising PostgreSQL queries with an open dataset

&#xA; Overview # &#xA; This post is a brief illustration of some database optimisation techniques,&#xA;using the BRÉF (Base Révisée des Élu·es de France / Revised database of&#xA;representatives elected in France) , which&#xA;contains data about representatives elected in France from 1948 to 2020. The&#xA;BRÉF is based on French public data, in which a team of researchers has&#xA;corrected many…