From 9651f51c0ceeb9cfd05d0da5217bdcd2e362e5e5 Mon Sep 17 00:00:00 2001
From: Harshil Goel <54325286+harshil-goel@users.noreply.github.com>
Date: Sat, 27 Jun 2020 01:49:06 +0530
Subject: [PATCH] fix(dgraph):  Badger iterator key copy in count index query
 (#5689)

Use a copy of the key of the badger iterator for count index queries.

(cherry picked from commit 7050bfdb5d30191a6967b0f6c68844e225d81db2)
---
 worker/task.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/worker/task.go b/worker/task.go
index cf2c967a08c..e0877db9e71 100644
--- a/worker/task.go
+++ b/worker/task.go
@@ -2174,7 +2174,8 @@ func (qs *queryState) evaluate(cp countParams, out *pb.Result) error {
 
 	for itr.Seek(countKey); itr.Valid(); itr.Next() {
 		item := itr.Item()
-		pl, err := qs.cache.Get(item.Key())
+		var key []byte
+		pl, err := qs.cache.Get(item.KeyCopy(key))
 		if err != nil {
 			return err
 		}