CreateFunctionQuery 03274_test_function (children 2)
 Identifier 03274_test_function
 Function lambda (children 1)
  ExpressionList (children 2)
   Function tuple (children 1)
    ExpressionList (children 1)
     Identifier input_column_name
   Function tupleElement (children 1)
    ExpressionList (children 2)
     Function tuple (children 1)
      ExpressionList (children 2)
       Literal \'1\' (alias a)
       Identifier input_column_name (alias input_column_name)
     Literal UInt64_2
