public SearchResult<WorkflowSummary> search(
            String query, String freeText, int start, int size, List<String> sortOptions) {
        return executionDAOFacade.searchWorkflowSummary(query, freeText, start, size, sortOptions);
    }
This method removes the task from the un-acked Queue

@param taskId: the taskId that needs to be updated and removed from the unacked queue
@return True in case of successful removal of the taskId from the un-acked queue
core/src/main/java/com/netflix/conductor/service/ExecutionService.java