Creating a TimeSeries subtype

To create a column of type TimeSeries, you must first create a row subtype to represent the data held in each element of the time series.

About this task

Subtypes for both regular and irregular time series are created in the same way.

Procedure

To create the row subtype, use the SQL CREATE ROW TYPE statement and specify that the first field has a DATETIME YEAR TO FRACTION(5) data type.
The row type must conform to the syntax of the TimeSeries data type.

Examples

The following example creates a TimeSeries subtype, called stock_bar: 
create row type stock_bar(
   timestamp      datetime year to fraction(5),
   high           real,
   low            real,
   final          real,
   vol            real
);
The following example creates a TimeSeries subtype, called stock_trade: 
create row type stock_trade(
   timestamp       datetime year to fraction(5),
   price           double precision,
   vol             double precision,
   trade           int,
   broker          int,
   buyer           int,
   seller          int
);