Re: Querying PostgreSQL / PostGIS Databases in Python

2020-08-04 Thread Tony Shelver
We use Postgresql, python and PostGIS. Nearly all our data access is via Postgres functions, both DML and queries. Our system is a vehicle GPS tracking and business function analysis system, with quite a lot of data. Most of our reports require accessing hundreds to 100s of thousands of records f

Re: Querying PostgreSQL / PostGIS Databases in Python

2020-08-04 Thread Tony Shelver
We are using python on top of Postgresql / PostGIS, for a vehicle tracking system. THis is quite data intensive, and we have some 'interesting' GIS queries where we see where a vehicle or fleet has stopped within specific areas, where it has traveled, any incidents along the way and much more. Pos

Re: Querying PostgreSQL / PostGIS Databases in Python

2020-07-31 Thread Allan Kamau
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

Querying PostgreSQL / PostGIS Databases in Python

2020-07-31 Thread Shaozhong SHI
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