title: In KDB, how to bulk insert into a table containing a column of type String
body: <p>In a table with a column of type string (not symbol) I am able to insert a row one by one. But bulk insert is not working! </p>
  
  <pre><code>    t:([id:`int$()] str:()) /create table
      `t insert(0, enlist enlist "test") /insert first row. This seems to need two enlist
      `t insert(1, enlist "test1") /insert one more, this time with one enlist
      `t insert (2 3; enlist "test2" enlist "test3") /trying to bulk insert fails
      `t insert flip (2 3; enlist "test2" enlist "test3") /trying to bulk insert with flip also fails
  </code></pre>