Files
rengine/worker/app
Yogesh Ojha 6949492e11 perf(read-path): stored scan deltas, live-scope cache and cheaper aggregates at millions of rows
- Store each run's row, first-seen and retired counts (scan_deltas, scan_retired), valid while
  the revision stamp matches scan_revisions; statement triggers on the seven result tables bump
  it. Finalize warms, a beat backfill fills the rest, a live run answers from its last count and
  queues a refresh. /scans 1.5 s -> 43 ms, dashboard overview 5-10 s -> 0.9 s.
- lead_cache holds a live scope for 20 s with a stale copy, and every build is single-flight;
  search pages opt out.
- Leads: lowercase subdomain names (CHECK) and LIKE for host:, a guard for empty JSON arrays,
  branches as MATERIALIZED CTEs read to the cap, every count in one statement.
- Addresses and services: the derived CTE as one grouped pass, rows and count in one execution
  (page_rows), GIN lookups for page hosts, facets through grouping sets.
- Correlation carriers counted by EXISTS; takeover latest-sighting in SQL, no silent cap.
- Screenshot backfill partial index, nine unused low-cardinality indexes dropped, hostname
  helpers memoised, vhost names normalised.
2026-09-25 05:40:01 +05:30
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