title: MySQL Insert Failing with Duplicate Entry on Index
body: <p>I am trying to do an insert statement. I have an unique index setup that combines phone_number and niche.</p>
  <blockquote>
  <p>INSERT INTO CV_YP.table (phone_number,website,niche) VALUES
  (1231231234, 'website.com', 'fitness')</p>
  </blockquote>
  <p>The return value says I have a duplicate entry but the phone number is different then the one I just tried to insert.</p>
  <blockquote>
  <p>ERROR 1062 (23000) at line 1: Duplicate entry '2147483647-fitness' for
  key 'idx_table_phone_number_niche'</p>
  </blockquote>
  <p>I can't figure out why MySQL thinks my insert is related to the index duplication it returns.</p>