title: schemacrawler not showing relationships/edges in graph option for MS sql server db
body: <p>I have been trying to graph the relationships in a subset of tables in a SQL Server db.  </p>
  
  <p>I run sc.sh on a MAC OS using the following options:</p>
  
  <p><code>
  -server=sqlserver -host=&lt;host&gt; -database=&lt;schema&gt;  -user=&lt;user&gt; -password=&lt;password&gt; -infolevel="maximum" -command="graph"  -schemas=&lt;schema&gt; -tables="&lt;database&gt;\.&lt;schema&gt;\.TABLE1|&lt;database&gt;\.&lt;schema&gt;\.TABLE2"  -grepcolumns=".*\.PRIMARYKEY" -tabletypes=TABLE -outputformat=pdf -outputfile=diagram.pdf
  </code></p>
  
  <p>The version of graphviz that I use is 2.28.0 (if I use a version later than this, I get errors in both schemacrawler and schemaSpy).</p>
  
  <p>When I run the command, I get the output pdf file.  But it contains only the tables/nodes and their columns, without the relationship/edge that should link the 2 tables.</p>
  
  <p>I also tried generating the graph for all tables in the database, and the output was again a diagram of all the tables/nodes with their columns, but without any relationships/edges. </p>
  
  <p>I can run the diagram example that is part of the schema crawler download, and the output does show the relationships/edges.</p>
  
  <p>Lastly, I can generate diagrams in schemaSpy that show the proper relationships.  I want to see if I can generate diagrams in schemacrawler for just a specific set of tables and columns.</p>
  
  <p>I use schemacrawler-12.04.02-main</p>