title: MYSQL SUM() returns incorrect value. No joins
body: <p>Having an issue with a simple SUM() of a column</p>
  <pre><code>SELECT SUM('2021-06-30_value') FROM Test.a123;
  </code></pre>
  <p>Returns 198058</p>
  <p>Pulling the same data into Excel as well as doing a python for loop for each row returns 2537737 &lt;&lt; the correct value.</p>