fix(indexer): BRIN index swap_events.block_timestamp + 1m /overview cache (#281) #742

Merged

Brouie merged 1 commit from qa/281-overview-brin-cache into main

2026-06-04 08:03:26 +00:00

Brouie commented

2026-06-04 03:24:00 +00:00

(Migrated from gitlab.com)

/overview aggregated over swap_events WHERE block_timestamp >= cutoff with no block_timestamp-leading index → full scan per unauthenticated request. Adds a BRIN index on the append-only block_timestamp and a 60s TTL cache on the /overview response.

On the 62-row localnet table the planner correctly still scans the whole table (too small for any index), so the BRIN benefit is a production-scale property; the 1-min cache bounds latency regardless of size. cargo check clean.

GitLab #281

`/overview` aggregated over `swap_events WHERE block_timestamp >= cutoff` with no block_timestamp-leading index → full scan per unauthenticated request. Adds a BRIN index on the append-only `block_timestamp` and a 60s TTL cache on the `/overview` response. On the 62-row localnet table the planner correctly still scans the whole table (too small for any index), so the BRIN benefit is a production-scale property; the 1-min cache bounds latency regardless of size. cargo check clean. GitLab #281

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