From 7d13f3ecd227fdf723cbe893655ee951812c0ae1 Mon Sep 17 00:00:00 2001
From: mikemccand <mike@elastic.co>
Date: Thu, 29 Sep 2016 21:24:13 +0200
Subject: [PATCH] SOLR-9582: reset lastDocID when switching to a new LeafReader

---
 .../java/org/apache/solr/response/SortingResponseWriter.java  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/solr/core/src/java/org/apache/solr/response/SortingResponseWriter.java b/solr/core/src/java/org/apache/solr/response/SortingResponseWriter.java
index 709abc90a73..23a17cf4c9e 100644
--- a/solr/core/src/java/org/apache/solr/response/SortingResponseWriter.java
+++ b/solr/core/src/java/org/apache/solr/response/SortingResponseWriter.java
@@ -871,6 +871,7 @@ public class SortingResponseWriter implements QueryResponseWriter {
 
     public void setNextReader(LeafReaderContext context) throws IOException {
       this.vals = DocValues.getNumeric(context.reader(), field);
+      lastDocID = 0;
     }
 
     public void setCurrentValue(int docId) throws IOException {
@@ -962,6 +963,7 @@ public class SortingResponseWriter implements QueryResponseWriter {
 
     public void setNextReader(LeafReaderContext context) throws IOException {
       this.vals = DocValues.getNumeric(context.reader(), field);
+      lastDocID = 0;
     }
 
     public void setCurrentValue(int docId) throws IOException {
@@ -1054,6 +1056,7 @@ public class SortingResponseWriter implements QueryResponseWriter {
 
     public void setNextReader(LeafReaderContext context) throws IOException {
       this.vals = DocValues.getNumeric(context.reader(), field);
+      lastDocID = 0;
     }
 
     public void setCurrentValue(int docId) throws IOException {
@@ -1146,6 +1149,7 @@ public class SortingResponseWriter implements QueryResponseWriter {
     public void setNextReader(LeafReaderContext context) throws IOException {
       this.reader = context.reader();
       this.vals = DocValues.getNumeric(this.reader, this.field);
+      lastDocID = 0;
     }
 
     public void setCurrentValue(int docId) throws IOException {