Apparent missed query optimization with self-join and inner grouping

I have a table recording the results of a web crawl. (Table definition at the end of this message.) The relevant part of the data stored in it looks like this: id | url_id | full_url_id | experiment_id | redirect_num --++-+---+-- 2617 | 1312

Re: Querying PostgreSQL / PostGIS Databases in Python

You may write stored procedures using PL/pgSQL,alternatively you may write your queries in python. You may use psycopg2 to query the DB from Python. You may have a mix of the two, it will depend on your preference. Ideally you may not want your users running queries against the data by connecting t

Re: Questions about Logical Replication - Issue ???

hello Kyotaro, thx for you feedback and clarification. Le ven. 31 juil. 2020 à 02:13, Kyotaro Horiguchi a écrit : > Hi, > > At Thu, 30 Jul 2020 14:54:08 +0100, FOUTE K. Jaurès > wrote in > > Hi everyone, > > > > Situation: > > > >- A Master Database on the HQ > >- i make a dump of th

Querying PostgreSQL / PostGIS Databases in Python

Hi, What is the advantage of querying in Python? Has anyone got much experience? What not just use standard query? What is the rationale for querying in Python? Would the performance be better? Regards, Shao