Need C# linq query for pivot data
<p>I have an Order table with some fields. And I need two of them now: <code>PostalCode</code> and <code>TimeSlot</code>. And the structure is like below:</p>

<p><img src="https://i.stack.imgur.com/wwLfM.png" alt="DB table structure"></p>

<p>And what I need is a structure like below (need Linq query in C#). </p>

<p><img src="https://i.stack.imgur.com/ClVMm.png" alt="Required structure"></p>

<p>Thanks in advance.</p>