Explain EXPLAIN SYNTAX (children 1)
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 5)
     Function uniq (children 1)
      ExpressionList (children 1)
       Function bitNot (children 1)
        ExpressionList (children 1)
         Identifier x
     Function uniqExact (children 1)
      ExpressionList (children 1)
       Function bitNot (children 1)
        ExpressionList (children 1)
         Identifier x
     Function uniqHLL12 (children 1)
      ExpressionList (children 1)
       Function bitNot (children 1)
        ExpressionList (children 1)
         Identifier x
     Function uniqCombined (children 1)
      ExpressionList (children 1)
       Function bitNot (children 1)
        ExpressionList (children 1)
         Identifier x
     Function uniqCombined64 (children 1)
      ExpressionList (children 1)
       Function bitNot (children 1)
        ExpressionList (children 1)
         Identifier x
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Subquery (children 1)
        SelectWithUnionQuery (children 1)
         ExpressionList (children 1)
          SelectQuery (children 2)
           ExpressionList (children 1)
            Function modulo (alias x) (children 1)
             ExpressionList (children 2)
              Identifier number
              Literal UInt64_2
           TablesInSelectQuery (children 1)
            TablesInSelectQueryElement (children 1)
             TableExpression (children 1)
              Function numbers (children 1)
               ExpressionList (children 1)
                Literal UInt64_10
