PCP-4: Improve the performance of WindowExec
by using multi-thread hash grouping
#12966
Labels
Projects
WindowExec
by using multi-thread hash grouping
#12966
Description
TiDB implements window function feature compatible with mysql(https://dev.mysql.com/doc/refman/8.0/en/window-functions.html). The performance has much space to improve.
Considering using a multi-thread hash grouping, to run each window partition in parallel.
Goals:
Difficulty
Score
Mentor(s)
Recommended Skills
The text was updated successfully, but these errors were encountered: