SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function timeSeriesResampleToGridWithStaleness (alias res) (children 2)
     ExpressionList (children 2)
      Function CAST (children 1)
       ExpressionList (children 2)
        Identifier timestamp
        Literal \'DateTime64(2, \\\'UTC\\\')\'
      Identifier value
     ExpressionList (children 4)
      Literal UInt64_100
      Literal UInt64_150
      Literal UInt64_15
      Literal UInt64_50
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier ts_data
