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learnings from today

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This commit is contained in:
Christian Schwarz
2023-03-13 19:05:02 +00:00
parent 76cc7d108e
commit 0c0b5dcb95
1 changed files with 6 additions and 1 deletions
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7
scripts/layer_map_scraper/scraper.db.schema.sql
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@@ -10,9 +10,14 @@ CREATE TABLE scrapes (
create index scrapes_tenant_id_idx on scrapes (tenant_id);
create index scrapes_timeline_id_idx on scrapes (timeline_id);
create index scrapes_scrape_ts_idx on scrapes (scrape_ts);
create index scrapes_tenant_timeline_id_idx on scrapes (tenant_id, timeline_id);
create index scrapes_tenant_timeline_id_idx on scrapes (tenant_id, timeline_id); -- this can probably go
create index timeline_scrape_ts_idx on scrapes (timeline_id, scrape_ts);
create index tenant_timeline_scrape_ts_idx on scrapes (tenant_id, timeline_id, scrape_ts);
create index pageserver_id_idx on scrapes (pageserver_id);
-- add statistics so that query planner selects the tenant_timeline_scrape_ts idx
create statistics scrapes_tenant_timeline_stats on tenant_id, timeline_id from scrapes;
--- what follows are example queries ---
--- how many layer accesses did we have per layers/timeline/tenant in the last 30 seconds