title: how to insert unique value into virtual table using (fts3)
body: <p>i have created a virtual table.i the problem is i cannot insert unique value into my virtual table database using fts3.
  here is my create table code </p>
  
  <pre><code> public static final String DATABASE_CREATE =
              "CREATE VIRTUAL TABLE " + FTS_VIRTUAL_TABLE + " USING fts3(" +
                      KEY_CUSTOMER + " text UNIQUE," +
                      KEY_NAME + " NOT NULL," +
                      KEY_ADDRESS1 + " NOT NULL," +
                      KEY_ADDRESS2 + " NOT NULL," +
                      KEY_CITY + " NOT NULL," +
                      KEY_STATE + " NOT NULL," +
                      KEY_ZIP + " NOT NULL," +
                      KEY_SEARCH + "," +
                      KEY_AMOUNT + " NOT NULL," +
                      " UNIQUE (" + KEY_CUSTOMER + "));"; 
  </code></pre>
  
  <p>here i want <code>KEY_CUSTOMER</code> as unique, it's not working i can store same name many times ...its ignoring my <code>UNIQUE</code> statement</p>