From f72ec856586ce50f5b17cba366e66bd68c261eaa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Granh=C3=A3o?= <daniel.granhao@gmail.com>
Date: Tue, 15 Jul 2025 11:06:17 +0100
Subject: [PATCH] Optimize has_chain_swaps

---
 lib/core/src/persist/chain.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/core/src/persist/chain.rs b/lib/core/src/persist/chain.rs
index 5a017c7..9c702d1 100644
--- a/lib/core/src/persist/chain.rs
+++ b/lib/core/src/persist/chain.rs
@@ -227,10 +227,9 @@ impl Persister {
     }
 
     pub(crate) fn has_chain_swaps(&self) -> Result<bool> {
-        // The following may be optimized to not fetch all chain swaps
         let con: Connection = self.get_connection()?;
-        let chain_swaps = self.list_chain_swaps_where(&con, vec![])?;
-        Ok(!chain_swaps.is_empty())
+        let result = con.query_row("SELECT 1 FROM chain_swaps LIMIT 1", [], |_| Ok(()));
+        Ok(result.is_ok())
     }
 
     pub(crate) fn list_chain_swaps(&self) -> Result<Vec<ChainSwap>> {