Hello,
I’m a student from Nankai University in China. Now I and my team do a
project which aims to integrate XML to Postgresql. What I do is to complete
the function of XML Update.
Now I’m researching in concurrency control. I have read the code about the
concurrency control for a long time and I’m confident that I know it much.
But I am puzzled that why we need to lock tuple. I think locking transaction
is sufficient. I don’t think the tuple lock is good at improving executing
rate or anything.
I am wishing for your reply.
Best Regards,
--Huang Xiaocheng
--Database & Information System Lab, Nankai University, China