From 3f687687eea0e240fb19e700ec40df3742e99bd1 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Thu, 4 Sep 2025 15:58:23 -0700
Subject: [PATCH] Fixed compilation error with Postgres 19

---
 src/hnsw.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/hnsw.c b/src/hnsw.c
index 6a6db50..1d56ef6 100644
--- a/src/hnsw.c
+++ b/src/hnsw.c
@@ -52,12 +52,20 @@ HnswInitLockTranche(void)
 								  sizeof(int) * 1,
 								  &found);
 	if (!found)
+	{
+#if PG_VERSION_NUM >= 190000
+		tranche_ids[0] = LWLockNewTrancheId("HnswBuild");
+#else
 		tranche_ids[0] = LWLockNewTrancheId();
+#endif
+	}
 	hnsw_lock_tranche_id = tranche_ids[0];
 	LWLockRelease(AddinShmemInitLock);
 
+#if PG_VERSION_NUM < 190000
 	/* Per-backend registration of the tranche ID */
 	LWLockRegisterTranche(hnsw_lock_tranche_id, "HnswBuild");
+#endif
 }
 
 /*