title: PDI aka Kettle : is better "add constant" or "literal string" in table input?
body: <p>In a Kettle/ PDI transformation, I need to write on a table the values from another table plus other static strings.</p>
  
  <p>1 Table input : read records;</p>
  
  <p>2 Add constants : add "status" = "A"; (and other static strings)</p>
  
  <p>3 Table output : write old values + status and other constants</p>
  
  <p>Is it better to add the literal in the table input "select" (select id,field1, 'A' as status from ...) or better to use an Add Constants step?</p>
  
  <p>I suppose it's better to reduce steps' quantity, because with "Add constants" 
   you need to instantiate a new step.</p>
  
  <p>EDIT: For "better" I mean faster and less memory consuming</p>