SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.functions
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier name
     Literal \'bitShiftLeft\'
 Identifier Null
