PostgreSQL
Auditing Data Changes with Triggers
June 09, 2017 in PostgreSQL

Sometimes we want to record important metadata changes for audit purposes. PostgreSQL triggers can conveniently solve this need automatically.
Sometimes we want to record important metadata changes for audit purposes. PostgreSQL triggers can conveniently solve this need automatically.
Building an ItemCF Recommender in Pure SQL
April 05, 2017 in PostgreSQL

Five minutes, PostgreSQL, and the MovieLens dataset—that’s all you need to implement a classic item-based collaborative filtering recommender.
Five minutes, PostgreSQL, and the MovieLens dataset—that’s all you need to implement a classic item-based collaborative filtering recommender.
UUID Properties, Principles and Applications
November 06, 2016 in PostgreSQL

UUID properties, principles and applications, and how to manipulate UUIDs using PostgreSQL stored procedures.
UUID properties, principles and applications, and how to manipulate UUIDs using PostgreSQL stored procedures.
PostgreSQL MongoFDW Installation and Deployment
May 28, 2016 in PostgreSQL

Recently had business requirements to access MongoDB through PostgreSQL FDW, but compiling MongoDB FDW is really a nightmare.
Recently had business requirements to access MongoDB through PostgreSQL FDW, but compiling MongoDB FDW is really a nightmare.