@Override
    /**
     * Merging temporal files
     */
    protected void mergeStagingTable() throws Exception {
        // This method should be delegated to the specific fileFormat manager
        this.fileManager.mergeFiles();
    }
Constructs the SqlManager.

@param opts the ReplicaDB ToolOptions describing the user's requested action.
src/main/java/org/replicadb/manager/LocalFileManager.java