You usually don't need to bring any documents to a job interview in Canada. The job interview focuses more on your skills, experience, and personal qualities than on document verification. Your documents will be asked for in the subsequent stages of employment if you are selected for the position. In addition, in very rare cases, you may be told the result of the interview immediately. Usually, you will need to wait at least a few days or weeks.
However, if you are going to an interview, there are a few things you should bring with you:
Prepare all the documents in advance and put them in a folder or portfolio so that they don't get wrinkled. Before the interview, make sure all documents are up to date and reflect your latest achievements and skills.