From 941515003a95e373a101608021f0d2ccaeee8881 Mon Sep 17 00:00:00 2001
From: Mike Dilger <mike@mikedilger.com>
Date: Sat, 17 Feb 2024 08:29:21 +1300
Subject: [PATCH] Optimization available for when loading
 author-kind-replaceable events

---
 src/store/mod.rs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/store/mod.rs b/src/store/mod.rs
index f939a16..dbf15b8 100644
--- a/src/store/mod.rs
+++ b/src/store/mod.rs
@@ -176,7 +176,7 @@ impl Store {
             }
         } else if filter.num_authors() > 0 && filter.num_kinds() > 0 {
             for author in filter.authors() {
-                for kind in filter.kinds() {
+                'kind: for kind in filter.kinds() {
                     let start_prefix = Self::key_akci(
                         author,
                         kind,
@@ -201,6 +201,14 @@ impl Store {
                             // check against the rest of the filter
                             if filter.event_matches(&event)? {
                                 output.push(event);
+                                // If kind is replaceable (and not parameterized)
+                                // then don't take any more events for this author-kind
+                                // pair.
+                                // NOTE that this optimization is difficult to implement
+                                // for other replaceable event situations
+                                if kind.is_replaceable() {
+                                    continue 'kind;
+                                }
                             }
                         }
                         // Stop if limited