Generally, the power to send for records is unfettered. If the committee requests unredacted documents, it is entitled to unredacted documents. The Access to Information Act, the Privacy Act or any other act will not apply, nor will the spirit of the act. If redactions are proposed, it's up to each committee to decide whether or not it will accept the redactions.
Evidence of meeting #145 for Public Accounts in the 44th Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was parliamentary.
A video is available from Parliament.