Google Data Scientist interview questions

The interviewer is not familiar with the process and was told will test SQL but the interviewer never mentioned it. Only keep asking about my experience and statistic question. The experience is not that good

It seems that the interviewer does not know what I was telling about and neither do I. Some of the interviewers are extremely unprofessional. They require me to join the table in python. I asked them if I can join them by SQL. They told me no.