The latest outputs from researchers, alumni and friends at the UCL Centre for Advanced Spatial Analysis (CASA).
My presentation on the “Conference on Advanced Spatial Modelling and Analysis” consisted in some thoughts regarding Big Spatial Data, and how to handle them in terms of modern technologies. It was great to see such a motivated crowd from all … Continue reading →
I recently implemented an authentication system, supported by a table on the database. In this table, I store the usernames and passwords. The PostgreSQL “pgcrypto” module supports encryption of specific columns, but I wanted to avoid “bulking” my system with … Continue reading →
A while ago, I wrote a post about multi-master replication using symmetricDS. My scenario consists of a system with multiple nodes, all of them writing in their copies of the database. Sometimes the nodes may be offline, but I would … Continue reading →
Note: this was previously posted at simulacra.info, but I am in the process of (re)organising my technical notes and tutorials. A bit of a dry post here, but I thought I’d share my experience of trying to get two instances of … Continue reading →
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