From 21f4750ac3035e3943470751a8a78890377fd30d Mon Sep 17 00:00:00 2001
From: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Date: Sun, 24 Mar 2024 19:18:32 +0900
Subject: [PATCH] add KeepRecentEvents

---
 postgresql/postgresql.go | 1 +
 postgresql/save.go       | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/postgresql/postgresql.go b/postgresql/postgresql.go
index bac89ea..1e79450 100644
--- a/postgresql/postgresql.go
+++ b/postgresql/postgresql.go
@@ -12,6 +12,7 @@ type PostgresBackend struct {
 	QueryAuthorsLimit int
 	QueryKindsLimit   int
 	QueryTagsLimit    int
+	KeepRecentEvents  bool
 }
 
 func (b *PostgresBackend) Close() {
diff --git a/postgresql/save.go b/postgresql/save.go
index 7120fa0..2958767 100644
--- a/postgresql/save.go
+++ b/postgresql/save.go
@@ -32,6 +32,9 @@ func (b *PostgresBackend) BeforeSave(ctx context.Context, evt *nostr.Event) {
 }
 
 func (b *PostgresBackend) AfterSave(evt *nostr.Event) {
+	if b.KeepRecentEvents {
+		return
+	}
 	// delete all but the 100 most recent ones for each key
 	b.DB.Exec(`DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND created_at < (
       SELECT created_at FROM event WHERE pubkey = $1