Memory used by the Apply program

The Apply program uses memory when it fetches data. The amount of memory used is proportional to the size of the table columns and the number of rows fetched at one time. For example, if the Apply program is fetching a LOB column, it could potentially use 2 GB of memory.

Information about active subscription sets is read and stored in memory when the Apply program is running. The amount of memory used at one time by the Apply program is generally proportional to the amount of memory required to process the subscription set that has the most members.