Is the retirement of full-time graduate students in school regarded as the payment period?

According to the query of Fang Shuo Education Examination Network, there is no doubt that the postgraduate study period cannot be calculated as the deemed payment period, because the concept of deemed payment period is the continuous service before participating in the social pooling pension insurance, and others cannot be calculated as the payment period. However, students can participate in basic old-age insurance and medical insurance in their own names. It can be seen that full-time graduate students are not regarded as the payment period when they retire at school.