title: How to compare values of types string and datetime in Kusto
body: <p>I have a table 'Incident' and I'm trying to get count of all incidents resolved in the last 12 months based on 'Resolved_at' column which is of type 'String'.
  I used the below query on Kusto:</p>
  <p>Incident</p>
  <p>| where resolved_at &gt;= datetime_add('month',1,make_datetime(2020,1,1))</p>
  <p>| project resolved_at , severity , number</p>
  <p>But I'm getting this error:
  Semantic error:...has the following semantic error: Cannot compare values of types string and datetime. Try adding explicit casts.</p>
  <p>Please suggest.</p>