From cf6288e3ea9afb6810a2f2c0e9b68881e3e4ecaa Mon Sep 17 00:00:00 2001
From: peiwangdb <pennyiscomputing@gmail.com>
Date: Wed, 29 Sep 2021 09:41:35 -0700
Subject: [PATCH] hindex: fix cachekey inserting bug for partitioned table

---
 .../src/main/java/io/prestosql/heuristicindex/IndexCache.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/presto-main/src/main/java/io/prestosql/heuristicindex/IndexCache.java b/presto-main/src/main/java/io/prestosql/heuristicindex/IndexCache.java
index 43088353c..34886a6fb 100644
--- a/presto-main/src/main/java/io/prestosql/heuristicindex/IndexCache.java
+++ b/presto-main/src/main/java/io/prestosql/heuristicindex/IndexCache.java
@@ -231,7 +231,7 @@ public class IndexCache
                             Path indexUri = Paths.get(index.getUri());
                             String partition = null;
                             // get partition name from path if present
-                            for (int i = indexUri.getNameCount() - 1; i >= 0; i--) {
+                            for (int i = 0; i < indexUri.getNameCount(); i++) {
                                 if (indexUri.getName(i).toString().contains("=")) {
                                     partition = indexUri.getName(i).toString();
                                     break;