# This is the most laborous step, which I have found no way of automating. Also, rarely the options are just reordered, which complicates the merge process.
# Change the following options in /etc/postgresql/13/main/postgresql.conf:
autovacuum_vacuum_insert_threshold = -1
# Change the setting for wal_level back to 'minimal' if it was changed in step 7.
# Step 9a: Reboot the system:
# OPTIONAL: This is a good time to reboot the machine if desired (kernel update, long uptime & non-ECC RAM). Alternatively, just follow with 9b.
$ sudo reboot
# Step 9b: Start PostgreSQL:
# Only if 9a was skipped.
$ sudo systemctl start postgresql
# Step 10: Recreate indices:
# psql mentat_events
ANALYZE;
REINDEX DATABASE mentat_events;
ALTER TABLE events ADD PRIMARY KEY (id);
ALTER TABLE events_json ADD PRIMARY KEY (id);
ALTER TABLE events_json ADD FOREIGN KEY (id) REFERENCES events(id) ON DELETE CASCADE;
CREATE INDEX IF NOT EXISTS events_detecttime_idx ON events USING BTREE (detecttime);
CREATE INDEX IF NOT EXISTS events_cesnet_storagetime_idx ON events USING BTREE (cesnet_storagetime);
CREATE INDEX IF NOT EXISTS events_cesnet_eventseverity_idx ON events USING BTREE (cesnet_eventseverity) WHERE cesnet_eventseverity IS NOT NULL;
CREATE INDEX IF NOT EXISTS events_combined_idx ON events USING GIN (category, node_name, protocol, source_port, target_port, source_type, target_type, node_type, cesnet_resolvedabuses, cesnet_inspectionerrors);
CREATE INDEX IF NOT EXISTS events_ip_aggr_idx ON events USING GIST (source_ip_aggr_ip4, target_ip_aggr_ip4, source_ip_aggr_ip6, target_ip_aggr_ip6);
