From 8a81a3fe3ab43698f1a7e25e8e60f37a5ac7419e Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Tue, 16 Jun 2026 13:53:40 -0700
Subject: [PATCH] Added HNSW_VACUUM_PROGRESS flag [skip ci]

---
 src/hnswvacuum.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/hnswvacuum.c b/src/hnswvacuum.c
index 4ea076b..2825205 100644
--- a/src/hnswvacuum.c
+++ b/src/hnswvacuum.c
@@ -480,6 +480,16 @@ RepairGraph(HnswVacuumState * vacuumstate)
 		/* Reset memory context */
 		MemoryContextSwitchTo(oldCtx);
 		MemoryContextReset(vacuumstate->tmpCtx);
+
+#ifdef HNSW_VACUUM_PROGRESS
+		if (!BlockNumberIsValid(blkno) || blkno % 1000 == 0)
+		{
+			BlockNumber totalBlocks = RelationGetNumberOfBlocks(index);
+			BlockNumber currentBlocks = BlockNumberIsValid(blkno) ? blkno : totalBlocks;
+
+			elog(INFO, "hnsw vacuum progress: %.1f%%", 100.0 * currentBlocks / totalBlocks);
+		}
+#endif
 	}
 }