public String getSelectWorkflowWithTasksStatement() {
        return QueryBuilder.select()
                .all()
                .from(keyspace, TABLE_WORKFLOWS)
                .where(eq(WORKFLOW_ID_KEY, bindMarker()))
                .and(eq(SHARD_ID_KEY, bindMarker()))
                .getQueryString();
    }
@return cql query statement to retrieve a workflow with its tasks from the "workflows" table
cassandra-persistence/src/main/java/com/netflix/conductor/cassandra/util/Statements.java