SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function toDateTime (alias a) (children 1)
     ExpressionList (children 2)
      Literal \'2000-01-01\'
      Literal \'Asia/Istanbul\'
    Function toDateTime64 (alias b) (children 1)
     ExpressionList (children 3)
      Literal \'2000-01-01\'
      Literal UInt64_5
      Literal \'Asia/Istanbul\'
   ExpressionList (children 2)
    Function if (alias result) (children 1)
     ExpressionList (children 3)
      Identifier value
      Identifier b
      Identifier a
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier result
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier predicate_table
