title: Snowflake: [42000][904] SQL compilation error
body: <p>When trying to execute this request I got an issue:</p>
  
  <pre><code>[42000][904] SQL compilation error: error line 5 at position 24 invalid identifier 'SRC.AGE'
  
  
  merge into Test_functionality as target
  using (select *
          from (values ('36', 1, 25, 2.9, '00000101'), ('37', 1, 25, 2.9, '00000101'), ('38', 1, 25, 2.9, '00000101'), ('39', 1, 25, 2.9, '00000101')))
          as src(age, SomeBoolean, SomeNumber, SomeDouble, SomeBinary)
      on target.age = src.age
  when matched then update set target.age = src.age, target.SomeBoolean = src.SomeBoolean, target.SomeNumber = src.SomeNumber, target.SomeDouble = src.SomeDouble, target.SomeBinary = src.SomeBinary
  when not matched then insert (age, SomeBoolean, SomeNumber, SomeDouble, SomeBinary) values (src.age, src.SomeBoolean, src.SomeNumber, src.SomeDouble, src.SomeBinary);
  </code></pre>
  
  <p>The table what I use:</p>
  
  <pre><code>CREATE TABLE Test_functionality (
      age                        VARCHAR,
      SomeBoolean                BOOLEAN,
      SomeNumber                 INT,
      SomeDouble                 real,
      SomeBinary                 binary
  );
  </code></pre>