SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Literal UInt64_10 (alias k)
   ExpressionList (children 2)
    Identifier k (alias key)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier repl_tbl
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier key
     Identifier k
