diff --git a/src/Interpreters/OptimizeIfWithConstantConditionVisitor.cpp b/src/Interpreters/OptimizeIfWithConstantConditionVisitor.cpp
index 0440c52797c..802bf4e43ce 100644
--- a/src/Interpreters/OptimizeIfWithConstantConditionVisitor.cpp
+++ b/src/Interpreters/OptimizeIfWithConstantConditionVisitor.cpp
@@ -51,7 +51,7 @@ static bool tryExtractConstValueFromCondition(const ASTPtr & condition, bool & v
                 }
             }
         }
-        else if (function->name == "toUInt8" || function->name == "toInt8")
+        else if (function->name == "toUInt8" || function->name == "toInt8" || function->name == "identity")
         {
             if (const auto * expr_list = function->arguments->as<ASTExpressionList>())
             {
diff --git a/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.reference b/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.reference
index 67f2590a0c6..a7903610a42 100644
--- a/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.reference
+++ b/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.reference
@@ -6,3 +6,7 @@
 42
 42
 42
+SELECT
+    x,
+    concat(x, \'_\')
+FROM test
diff --git a/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.sql b/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.sql
index ad3d417bc26..d2041a612a6 100644
--- a/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.sql
+++ b/tests/queries/0_stateless/02125_constant_if_condition_and_not_existing_column.sql
@@ -11,4 +11,7 @@ select if(toUInt8(1), 42, y) from test;
 select if(toInt8(1), 42, y) from test;
 select if(toUInt8(toUInt8(0)), y, 42) from test;
 select if(cast(cast(0, 'UInt8'), 'UInt8'), y, 42) from test;
+
+explain syntax select x, if((select hasColumnInTable(currentDatabase(), 'test', 'y')), y, x || '_')  from test;
+
 drop table if exists t;