SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function substr (children 1)
     ExpressionList (children 3)
      Identifier name
      Literal UInt64_1
      Literal UInt64_10
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.tables
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier database
     Literal \'test_01155_ordinary\'
