From 84f6a7336c2d7ac547ad7030c389d4961f4ab8e4 Mon Sep 17 00:00:00 2001
From: chen768959 <934103231@qq.com>
Date: Thu, 20 Jul 2023 19:03:42 +0800
Subject: [PATCH] Prevent going beyond the index of const_columns_to_remove.

---
 src/Processors/Transforms/FinishSortingTransform.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Processors/Transforms/FinishSortingTransform.cpp b/src/Processors/Transforms/FinishSortingTransform.cpp
index 744d035d0ee..baf898481ab 100644
--- a/src/Processors/Transforms/FinishSortingTransform.cpp
+++ b/src/Processors/Transforms/FinishSortingTransform.cpp
@@ -38,11 +38,12 @@ FinishSortingTransform::FinishSortingTransform(
     /// Remove constants from description_sorted_.
     SortDescription description_sorted_without_constants;
     description_sorted_without_constants.reserve(description_sorted_.size());
+    size_t num_columns = const_columns_to_remove.size();
     for (const auto & column_description : description_sorted_)
     {
         auto pos = header.getPositionByName(column_description.column_name);
 
-        if (!const_columns_to_remove[pos]){
+        if (pos < num_columns && !const_columns_to_remove[pos]){
             description_sorted_without_constants.push_back(column_description);
         }
     }