Explain EXPLAIN QUERY TREE (children 2)
 Set
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 5)
    ExpressionList (children 1)
     Identifier a
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_10
    ExpressionList (children 1)
     Function or (alias a) (children 1)
      ExpressionList (children 2)
       Function greater (children 1)
        ExpressionList (children 2)
         Identifier number
         Literal UInt64_10
       Function and (children 1)
        ExpressionList (children 2)
         Function greater (children 1)
          ExpressionList (children 2)
           Identifier number
           Literal UInt64_2
         Function greater (children 1)
          ExpressionList (children 2)
           Identifier number
           Literal UInt64_10
    Identifier a
    Set
