https://www.fromdual.com/tags/data-type/Recent content in Data Type on FromDual GmbHHugoen-GBoli.sennhauser@fromdual.com (Oli Sennhauser)oli.sennhauser@fromdual.com (Oli Sennhauser)© FromDual GmbHWed, 25 May 2016 11:42:20 +0000https://www.fromdual.com/blog/why-you-should-take-care-of-mysql-data-types/Wed, 25 May 2016 11:42:20 +0000oli.sennhauser@fromdual.com (Oli Sennhauser)https://www.fromdual.com/blog/why-you-should-take-care-of-mysql-data-types/<p>A customer reported last month that MySQL does a full table scan (FTS) if a query was filtered by a <code>INT</code> value on a <code>VARCHAR</code> column. First I told him that this is not true any more because MySQL has fixed this behaviour long time ago. He showed me that I was wrong:</p>