- k8s: 2 replicas, POOL_SIZE 25, cpu 2000m, mem 1Gi (was 1 replica, 5, 500m, 512Mi)
- telemetry poller 10s -> 60s; drop pg_database_size, pg_stat_statements,
pg_table_size and pg_indexes_size (these were ~7100s of cumulative DB time
on their own)
- get_latest_packet_for_callsign: bound by :packet_retention_days so partition
pruning kicks in
- get_nearby_stations_knn: ST_DWithin spatial pre-filter (default 500km) so
the GiST geography index cuts candidates before DISTINCT ON sort
(EXPLAIN: 5793ms -> 400ms)
- New migration: partial functional indexes on upper(object_name) and
upper(item_name), built per-partition CONCURRENTLY then attached to parent.
Lets get_latest_packet_for_callsign use BitmapOr across all 3 upper()
indexes instead of falling back to a scan
Graham McIntire
24796f98d4