services/horizon: Add migration to tighten up the trade aggregation a…

…utovac settings (#4412) * Add migration to tighten up the trade aggregation autovac settings * update changelog * gogenerate.sh
stellar · May 27, 2022 · 97da5a5 · 97da5a5
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diff --git a/services/horizon/CHANGELOG.md b/services/horizon/CHANGELOG.md
@@ -5,6 +5,8 @@ file. This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+- Run postgres autovacuum on `history_trades_60000` table more frequently
+  ([4412](https://github.com/stellar/go/pull/4412)).
 - Querying claimable balances has been optimized ([4385](https://github.com/stellar/go/pull/4385)).
 - Querying trade aggregations has been optimized ([4389](https://github.com/stellar/go/pull/4389)).
 - Postgres connections for non ingesting Horizon instances are now configured to timeout on long running queries / transactions ([4390](https://github.com/stellar/go/pull/4390)).

diff --git a/services/horizon/internal/db2/schema/bindata.go b/services/horizon/internal/db2/schema/bindata.go
diff --git a/services/horizon/internal/db2/schema/migrations/56_trade_aggregation_autovac.sql b/services/horizon/internal/db2/schema/migrations/56_trade_aggregation_autovac.sql
@@ -0,0 +1,13 @@
+-- +migrate Up
+
+alter table history_trades_60000 set (
+  autovacuum_vacuum_scale_factor = 0.05,
+  autovacuum_analyze_scale_factor = 0.025
+);
+
+-- +migrate Down
+
+alter table history_trades_60000 set (
+  autovacuum_vacuum_scale_factor = 0.1,
+  autovacuum_analyze_scale_factor = 0.5
+);