Explain EXPLAIN SYNTAX (children 1)
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 1)
     Function plus (alias expr) (children 1)
      ExpressionList (children 2)
       Identifier value
       Identifier t1.value
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Subquery (children 1)
        SelectWithUnionQuery (children 1)
         ExpressionList (children 1)
          SelectQuery (children 2)
           ExpressionList (children 2)
            Identifier t0.value
            Identifier t1.value
           TablesInSelectQuery (children 2)
            TablesInSelectQueryElement (children 1)
             TableExpression (children 1)
              TableIdentifier test_00597 (alias t0)
            TablesInSelectQueryElement (children 2)
             TableExpression (children 1)
              TableIdentifier test_00597 (alias t1)
             TableJoin (children 1)
              ExpressionList (children 1)
               Identifier date
    Function less (children 1)
     ExpressionList (children 2)
      Identifier expr
      Literal UInt64_3
