[Improvement](function) optimization for substr with ascii string (#2…

[BiteTheDDDDt]

…9799)

Proposed changes

pick from #29799

Further comments

If this is a relatively large or complex change, kick off the discussion at [email protected] by explaining why you chose the solution you did and what alternatives you considered, etc...

[BiteTheDDDDt]

run buildall

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[doris-robot]

(From new machine)TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 50.42 seconds
stream load tsv: 567 seconds loaded 74807831229 Bytes, about 125 MB/s
stream load json: 20 seconds loaded 2358488459 Bytes, about 112 MB/s
stream load orc: 66 seconds loaded 1101869774 Bytes, about 15 MB/s
stream load parquet: 32 seconds loaded 861443392 Bytes, about 25 MB/s
insert into select: 29.6 seconds inserted 10000000 Rows, about 337K ops/s
storage size: 17167381001 Bytes

[doris-robot]

TeamCity be ut coverage result:
Function Coverage: 37.85% (8028/21208)
Line Coverage: 29.51% (65306/221280)
Region Coverage: 28.97% (33599/115983)
Branch Coverage: 24.83% (17243/69456)
Coverage Report: http://coverage.selectdb-in.cc/coverage/4cfd34c33fa27594f8d511fa723b9bc5f3b3473d_4cfd34c33fa27594f8d511fa723b9bc5f3b3473d/report/index.html