title: Remove column name from the result of ActiveRecord::Base.connection.execute
body: <p>I got the response with column name <strong>key</strong>, but I don't need it. How to get the response without the column name.</p>
  
  <p>That is I don't need the key : time, high, low, ...</p>
  
  <p>I just need the result values.</p>
  
  <p>I got the result by  <code>ActiveRecord::Base.connection.execute(q_cmd)</code></p>
  
  <pre><code>{"time"=&gt;"2014-01-02 01:14:00", "high"=&gt;"2360", "low"=&gt;"2360", "open"=&gt;"2360", "close"=&gt;"2360", "volume"=&gt;"9"}{"time"=&gt;"2014-01-02 01:14:01", "high"=&gt;"0", "low"=&gt;"0", "open"=&gt;"0", "close"=&gt;"0", "volume"=&gt;"0"}{"time"=&gt;"2014-01-02 01:14:02", "high"=&gt;"0", "low"=&gt;"0", "open"=&gt;"0", "close"=&gt;"0", "volume"=&gt;"0"}{"time"=&gt;"2014-01-02 01:14:03", "high"=&gt;"0", "low"=&gt;"0", "open"=&gt;"0", "close"=&gt;"0", "volume"=&gt;"0"}{"time"=&gt;"2014-01-02 01:14:04", "high"=&gt;"0", "low"=&gt;"0", "open"=&gt;"0", "close"=&gt;"0", "volume"=&gt;"0"}
  </code></pre>