Optimize strpos() string function with ASCII fast path #12366
Description
Is your feature request related to a problem or challenge?
Part of #12306
#12306 has introduced the rationale for ASCII fast path in detail
This optimization has already been implemented on char_length() string function and got some performance improvement.
(In PR #12356)
Describe the solution you'd like
Implement ASCII fast path for strpos() function
Describe alternatives you've considered
No response
Additional context
No response