PostgreSQL’s foreign data wrapper to Oracle: hide passwords using secure external password store
Hi there, customer is worried about the credentials that are stored in PostgreSQL dbwhen using foreign data wrappers. In that case to Oracle, using oracle_fdw.It is possible to query a stored password from data dictionary. Only privileged users can do it, but still kind of…
How Well a Query Optimizer Handles Subqueries?
At the beginning of December, at the UKOUG Tech17 conference in Birmingham (GB), I presented a comparison of the query optimizers of MySQL 8.0.3 and PostgreSQL 10.1. One of the things I talked about is their ability to handle subqueries. I summarized my findings with…