SparkSQL - Read parquet file directly
<p>I am migrating from Impala to SparkSQL, using the following code to read a table:</p>

<pre><code>my_data = sqlContext.read.parquet('hdfs://my_hdfs_path/my_db.db/my_table')
</code></pre>

<p>How do I invoke SparkSQL above, so it can return something like:</p>

<pre><code>'select col_A, col_B from my_table'
</code></pre>