PSQL: Use unlogged tables for caches

Using a Postgres table for caching? You might want to try making it unlogged.

unlogged tables are not written to the write-ahead log, which makes them much faster. This also means they are not crash-safe, and are truncated when a crash or unclean shutdown occurs. For caching purposes, that’s likely to be an acceptable tradeoff.

Documentation

Via jwworth/til.