From ac8d80da515144d2d4fe3ed0c47e2bab1d171927 Mon Sep 17 00:00:00 2001
From: Yarik Briukhovetskyi <114298166+yariks5s@users.noreply.github.com>
Date: Wed, 6 Dec 2023 19:28:06 +0100
Subject: [PATCH] fix

---
 src/Functions/toStartOfInterval.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Functions/toStartOfInterval.cpp b/src/Functions/toStartOfInterval.cpp
index 94514d1e1a0..e67d3378f6e 100644
--- a/src/Functions/toStartOfInterval.cpp
+++ b/src/Functions/toStartOfInterval.cpp
@@ -405,7 +405,8 @@ private:
 
                     if (scale_on_precision > scale_multiplier)
                         result_data[i] += (origin + res / scale_diff) * scale_diff;
-                    else if (scale_on_precision == scale_multiplier && scale_on_precision != 10) /// scale == 10 is default case
+                    else if (scale_on_precision == scale_multiplier && scale_on_precision % 1000 != 0 && scale_multiplier != 10) /// when it's not a default case with DateTime
+                                                                                                                                /// and when precision is not sub-scale
                         result_data[i] += origin + (res * scale_on_precision);
                     else
                         result_data[i] += origin + res * scale_diff;