• https://wiki.postgresql.org/wiki/Slow_Query_Questions
  • https://wiki.postgresql.org/wiki/Logging_Difficult_Queries
  • Analysers:
    • https://github.com/WoLpH/pg_query_analyser
    • pgbadger (debian pkg) → couldn't make work
    • pgfouine (debian pkg) → couldn't make work
    • http://explain.depesz.com/