diff --git a/src/DataTypes/getLeastSupertype.cpp b/src/DataTypes/getLeastSupertype.cpp
index f8d10535be2..22f6a077504 100644
--- a/src/DataTypes/getLeastSupertype.cpp
+++ b/src/DataTypes/getLeastSupertype.cpp
@@ -530,4 +530,16 @@ DataTypePtr getLeastSupertype(const DataTypes & types)
     throw Exception(getExceptionMessagePrefix(types), ErrorCodes::NO_COMMON_TYPE);
 }
 
+DataTypePtr tryGetLeastSupertype(const DataTypes & types)
+{
+    try
+    {
+        return getLeastSupertype(types);
+    }
+    catch (...)
+    {
+        return nullptr;
+    }
+}
+
 }
diff --git a/src/DataTypes/getLeastSupertype.h b/src/DataTypes/getLeastSupertype.h
index 57e011a0529..c35ec7d722c 100644
--- a/src/DataTypes/getLeastSupertype.h
+++ b/src/DataTypes/getLeastSupertype.h
@@ -14,4 +14,7 @@ namespace DB
   */
 DataTypePtr getLeastSupertype(const DataTypes & types);
 
+/// Same as above but return nullptr instead of throwing exception.
+DataTypePtr tryGetLeastSupertype(const DataTypes & types);
+
 }
diff --git a/src/Storages/MergeTree/KeyCondition.cpp b/src/Storages/MergeTree/KeyCondition.cpp
index 3d4e909cf60..8ce65211e3e 100644
--- a/src/Storages/MergeTree/KeyCondition.cpp
+++ b/src/Storages/MergeTree/KeyCondition.cpp
@@ -1306,7 +1306,10 @@ bool KeyCondition::tryParseAtomFromAST(const ASTPtr & node, ContextPtr context,
                 }
                 else
                 {
-                    DataTypePtr common_type = getLeastSupertype({key_expr_type_not_null, const_type});
+                    DataTypePtr common_type = tryGetLeastSupertype({key_expr_type_not_null, const_type});
+                    if (!common_type)
+                        return false;
+
                     if (!const_type->equals(*common_type))
                     {
                         castValueToType(common_type, const_value, const_type, node);
diff --git a/tests/queries/0_stateless/02179_key_condition_no_common_type.reference b/tests/queries/0_stateless/02179_key_condition_no_common_type.reference
new file mode 100644
index 00000000000..b63ba696b7a
--- /dev/null
+++ b/tests/queries/0_stateless/02179_key_condition_no_common_type.reference
@@ -0,0 +1 @@
+0.9
diff --git a/tests/queries/0_stateless/02179_key_condition_no_common_type.sql b/tests/queries/0_stateless/02179_key_condition_no_common_type.sql
new file mode 100644
index 00000000000..3d2adc3f2ee
--- /dev/null
+++ b/tests/queries/0_stateless/02179_key_condition_no_common_type.sql
@@ -0,0 +1,9 @@
+drop table if exists t;
+
+create table t (c Decimal32(9)) engine MergeTree order by c;
+
+insert into t values (0.9);
+
+select * from t where c < 1.2;
+
+drop table t;