text: -- Add sendrepeatable column to programnotificationtemplate table.
  -- For backward compatibility set sendrepeatable to false where null.
  
  alter table programnotificationtemplate add column if not exists sendrepeatable boolean;
  update programnotificationtemplate set sendrepeatable = false where sendrepeatable is null;
  alter table programnotificationtemplate alter column sendrepeatable set not null;
  