Improve the hash join performance by replacing the RawTable to a simple Vec for JoinHashMap #6910
Description
Is your feature request related to a problem or challenge?
When testing the TPCH q17 on my PC, based on #6800, it costs around 2.4s. Among them, it costs around 800ms for constructing the RawTable of JoinHashMap.
To only find the hash location, the structure, RawTable, we used is too complex and the overhead is too heavy.
Describe the solution you'd like
We can simple use a fixed size of vector with a hash mask to look up the hash location.
After applying the replacement, it only cost less than 100ms for the construction of JoinHashMap. And the overall time cost for the q17 is reduced from 2.4s to 1.8s.
Describe alternatives you've considered
No response
Additional context
No response