From 4b176ad265581c04996e9180c9cd5001744cff90 Mon Sep 17 00:00:00 2001
From: Alexander Saydakov <13126686+AlexanderSaydakov@users.noreply.github.com>
Date: Thu, 11 Jul 2019 17:17:53 -0700
Subject: [PATCH] force native order when wrapping ByteBuffer since Druid can
 have it set (#8055)

incorrectly
---
 .../quantiles/DoublesSketchMergeBufferAggregator.java          | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/quantiles/DoublesSketchMergeBufferAggregator.java b/extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/quantiles/DoublesSketchMergeBufferAggregator.java
index f5a1e9dc17f..a4766ac10d1 100644
--- a/extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/quantiles/DoublesSketchMergeBufferAggregator.java
+++ b/extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/quantiles/DoublesSketchMergeBufferAggregator.java
@@ -28,6 +28,7 @@ import org.apache.druid.query.monomorphicprocessing.RuntimeShapeInspector;
 import org.apache.druid.segment.ColumnValueSelector;
 
 import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
 import java.util.IdentityHashMap;
 
 public class DoublesSketchMergeBufferAggregator implements BufferAggregator
@@ -113,7 +114,7 @@ public class DoublesSketchMergeBufferAggregator implements BufferAggregator
 
   private WritableMemory getMemory(final ByteBuffer buffer)
   {
-    return memCache.computeIfAbsent(buffer, buf -> WritableMemory.wrap(buf));
+    return memCache.computeIfAbsent(buffer, buf -> WritableMemory.wrap(buf, ByteOrder.LITTLE_ENDIAN));
   }
 
   private void putUnion(final ByteBuffer buffer, final int position, final DoublesUnion union)