Page page = control_row.page;
// The number records that can be reclaimed is:
// total recs - control row - recs_not_deleted
int num_possible_commit_delete =
page.recordCount() - 1 - page.nonDeletedRecordCount();
if (num_possible_commit_delete > 0)
{
// loop backward so that purges which affect the slot table
// don't affect the loop (ie. they only move records we