title: MySQL InnoDB table with a Hash Index
body: <p>I have a table like this.</p>
  
  <pre><code>ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
  </code></pre>
  
  <p>Later i have created a HASH index like this.</p>
  
  <pre><code>CREATE INDEX index ON table (column) USING HASH;
  </code></pre>
  
  <p>Latter i have try some explain queries.</p>
  
  <p>Like</p>
  
  <pre><code>explain Select * from table where column=132;
  </code></pre>
  
  <p>And i see the engine is using the index on possible_keys and in the key stuff says the name of the index!!</p>
  
  <p>But in the docs says that InnoDB doesn't allow hash index now i wonder why my innoDB Supposedly allows the hash index? </p>