From 98a7b884fee37e395711361439ea15d02b5217fa Mon Sep 17 00:00:00 2001
From: vyzo <vyzo@hackzen.org>
Date: Wed, 3 Mar 2021 12:26:10 +0200
Subject: [PATCH] implement DeleteMany in union blockstore

---
 blockstore/union.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/blockstore/union.go b/blockstore/union.go
index dfe5ea70c..a99ba2591 100644
--- a/blockstore/union.go
+++ b/blockstore/union.go
@@ -82,6 +82,15 @@ func (m unionBlockstore) DeleteBlock(cid cid.Cid) (err error) {
 	return err
 }
 
+func (m unionBlockstore) DeleteMany(cids []cid.Cid) (err error) {
+	for _, bs := range m {
+		if err = bs.DeleteMany(cids); err != nil {
+			break
+		}
+	}
+	return err
+}
+
 func (m unionBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
 	// this does not deduplicate; this interface needs to be revisited.
 	outCh := make(chan cid.Cid)