title: Check if a column is auto incremented in Sybase with JDBC
body: <p>To check if a column is auto incremented i can do the following</p>
  
  <pre><code>Connection con = ...    
  DatabaseMetaData meta = con.getMetaData();
  ResultSet metaCols = meta.getColumns(catalog, schema, table, "%");
  while ( metaCols.next() )   
       String value = rs.getString("IS_AUTOINCREMENT")    
    ...
  </code></pre>
  
  <p>works fine except with Sybase databases. I've tried it with the jTDS and JConnect drivers, but with both drivers I get the this exception:</p>
  
  <pre><code>java.sql.SQLException: Invalid column name IS_AUTOINCREMENT.
  </code></pre>
  
  <p>Is there another the get find out, whether a column in Sybase is auto incremented or not?
  I thought "IS_AUTOINCREMENT" is a feature with JDBC4 and jTDS is a JDBC4 compatible driver.</p>