From f61ea15d56e0624accec14f7f1e966ad3e1e3ce0 Mon Sep 17 00:00:00 2001
From: Anton Popov <pad11rus@gmail.com>
Date: Fri, 16 Jul 2021 20:40:00 +0300
Subject: [PATCH] fix pushdown of limit to reading stage

---
 src/Interpreters/InterpreterSelectQuery.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Interpreters/InterpreterSelectQuery.cpp b/src/Interpreters/InterpreterSelectQuery.cpp
index 0750dd6e27c..95a8da4216c 100644
--- a/src/Interpreters/InterpreterSelectQuery.cpp
+++ b/src/Interpreters/InterpreterSelectQuery.cpp
@@ -1925,7 +1925,7 @@ void InterpreterSelectQuery::executeFetchColumns(QueryProcessingStage::Enum proc
             }
 
             /// If we don't have filtration, we can pushdown limit to reading stage for optimizations.
-            UInt64 limit = (query.where() || query.prewhere()) ? 0 : getLimitForSorting(query, context);
+            UInt64 limit = (query.where() || query.prewhere() || query.groupBy()) ? 0 : getLimitForSorting(query, context);
             if (query_info.projection)
                 query_info.projection->input_order_info
                     = query_info.projection->order_optimizer->getInputOrder(query_info.projection->desc->metadata, context, limit);