Explain EXPLAIN ESTIMATE (children 2)
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 1)
     Function count (children 1)
      ExpressionList
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier partition_by_ignore
    Function and (children 1)
     ExpressionList (children 2)
      Function greaterOrEquals (children 1)
       ExpressionList (children 2)
        Identifier ts_2
        Function toDateTime (children 1)
         ExpressionList (children 1)
          Literal \'2022-08-07 00:00:00\'
      Function lessOrEquals (children 1)
       ExpressionList (children 2)
        Identifier ts_2
        Function toDateTime (children 1)
         ExpressionList (children 1)
          Literal \'2022-08-10 00:00:00\'
 Identifier CSV
