title: EF6 Oracle TimeStamp & Date
body: <p>I'm starting to use EntityFramework 6 with Oracle (client 12.x).
  I have severals tables with DATE columns and TIMESTAMP columns.</p>
  
  <p>All queries generated by EF6 convert .NET DateTime type to TIMESTAMP. So the query performance is very poor.</p>
  
  <p>I tried to add a precision to 0 for the DATETIME columns but nothing changes on the generated query.</p>
  
  <pre><code>Property(_ =&gt; _.MyDate).HasColumnName("DATE_COLUMN").HasPrecision(0);
  </code></pre>
  
  <p>How can I specify in my code to translate my where clause by a TO_DATE function and not by a TO_TIMESTAMP function ?</p>