SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Identifier name
    Identifier active
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.parts
   Function and (children 1)
    ExpressionList (children 3)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier database
       Literal \'shard_0\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier table
       Literal \'to\'
     Identifier active
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier name
