title: "mismatched input 'Date' expecting Identifier near '(' in column specification"
body: <p><code>ALTER TABLE test1 ADD PARTITION (Date='2013-11-20');</code></p>
  
  <p>Results in the following error:</p>
  
  <p><code>FAILED: Parse Error: line 1:84 mismatched input 'Date' expecting Identifier near '(' in column specification</code></p>
  
  <p>What is the problem?</p>