From 1853a740130f557f787d2c97dc9b42b1e410722b Mon Sep 17 00:00:00 2001
From: Vitaly Stoyan <vvvv@ydb.tech>
Date: Mon, 28 Oct 2024 21:13:43 +0300
Subject: [PATCH] init

---
 ydb/library/yql/public/decimal/ut/yql_decimal_ut.cpp | 1 +
 ydb/library/yql/public/decimal/yql_decimal.cpp       | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/ydb/library/yql/public/decimal/ut/yql_decimal_ut.cpp b/ydb/library/yql/public/decimal/ut/yql_decimal_ut.cpp
index 8ff43e997c3b..b7defdece080 100644
--- a/ydb/library/yql/public/decimal/ut/yql_decimal_ut.cpp
+++ b/ydb/library/yql/public/decimal/ut/yql_decimal_ut.cpp
@@ -215,6 +215,7 @@ Y_UNIT_TEST_SUITE(TYqlDecimalTest) {
         UNIT_ASSERT(FromStringEx("-1e-99", 10, 2) == 0);
         UNIT_ASSERT(FromStringEx("-510e-3", 1, 0) == -1);
         UNIT_ASSERT(FromStringEx("+99E3", 5, 0) == 99000);
+        UNIT_ASSERT(FromStringEx("2.1E-130", 35, 2) == 0);
     }
 
     Y_UNIT_TEST(TestFormStringExInvalidValues) {
diff --git a/ydb/library/yql/public/decimal/yql_decimal.cpp b/ydb/library/yql/public/decimal/yql_decimal.cpp
index 737691e10ce3..711638ef9825 100644
--- a/ydb/library/yql/public/decimal/yql_decimal.cpp
+++ b/ydb/library/yql/public/decimal/yql_decimal.cpp
@@ -10,6 +10,10 @@ namespace NDecimal {
 static const TUint128 Ten(10U);
 
 TUint128 GetDivider(ui8 scale) {
+    if (scale > MaxPrecision) {
+        return Inf();
+    }
+
     TUint128 d(1U);
     while (scale--)
         d *= Ten;