Predefined columns are non-primary key columns whose types you specify when you create a data table. Predefined columns can serve as index columns or attribute columns in an index table.
API operations
The following table lists the API operations for predefined columns.
|
Item |
API |
Description |
|
Add predefined columns |
Adds predefined columns to a data table. |
|
|
Remove predefined columns |
Removes predefined columns from a data table. |