[RegressionTest](test) Add fuzzy test config for column string overflow and p2 case

[HappenLee]

…

Proposed changes

Issue Number: close #xxx

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[doris-robot]

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[HappenLee]

run buildall

[github-actions]

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

[doris-robot]

TeamCity be ut coverage result:
Function Coverage: 35.20% (8918/25333)
Line Coverage: 26.97% (73319/271829)
Region Coverage: 26.15% (37884/144874)
Branch Coverage: 22.97% (19288/83974)
Coverage Report: http://coverage.selectdb-in.cc/coverage/8b21c02497081ff3d05a602933f2187cad5f9bea_8b21c02497081ff3d05a602933f2187cad5f9bea/report/index.html

[HappenLee]

run buildall

[github-actions]

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

[doris-robot]

TeamCity be ut coverage result:
Function Coverage: 35.20% (8918/25337)
Line Coverage: 26.97% (73327/271854)
Region Coverage: 26.15% (37889/144881)
Branch Coverage: 22.97% (19291/83978)
Coverage Report: http://coverage.selectdb-in.cc/coverage/0bd8f6b57f0f7c6ec4fd4be9d595b0cd68aef4f2_0bd8f6b57f0f7c6ec4fd4be9d595b0cd68aef4f2/report/index.html

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.