From 1fe42c88c3777d89bfcb1d41bbcb07926ab065d7 Mon Sep 17 00:00:00 2001
From: cyan317 <120398799+cindyyan317@users.noreply.github.com>
Date: Fri, 12 Apr 2024 15:06:51 +0100
Subject: [PATCH] Fix deletion script (#1357)

Because the slice has not done deep clone. All the _Data_ in
_deleteInfo_ will eventually refer to the last item in partition.

Please refer to "reuse slice session" from:
https://pkg.go.dev/github.com/gocql/gocql#hdr-Reusing_slices
---
 tools/cassandra_delete_range/main.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/cassandra_delete_range/main.go b/tools/cassandra_delete_range/main.go
index 7a191d60..ef4ebc10 100644
--- a/tools/cassandra_delete_range/main.go
+++ b/tools/cassandra_delete_range/main.go
@@ -484,8 +484,6 @@ func prepareDeleteQueries(cluster *gocql.ClusterConfig, fromLedgerIdx uint64, qu
 
 					var pageState []byte
 					var rowsRetrieved uint64
-					var key []byte
-					var seq uint64
 
 					for {
 						iter := preparedQuery.PageSize(*clusterPageSize).PageState(pageState).Iter()
@@ -493,6 +491,9 @@ func prepareDeleteQueries(cluster *gocql.ClusterConfig, fromLedgerIdx uint64, qu
 						scanner := iter.Scanner()
 
 						for scanner.Next() {
+							var key []byte
+							var seq uint64
+
 							err = scanner.Scan(&key, &seq)
 							if err == nil {
 								rowsRetrieved++