morrySnow opened a new pull request, #65100:
URL: https://github.com/apache/doris/pull/65100
### What problem does this PR solve?
Problem Summary: CREATE FUNCTION added the new function to the catalog and
wrote the edit log before registering the function in Nereids. If Nereids
registration failed, rollback removed the whole overload list for that function
name, so a failed overload creation could delete existing overloads. This
change registers the function in Nereids before journaling it and rolls back
only the just-created overload when registration fails.
### Release note
None
### Check List (For Author)
- Test:
- Unit Test: ./run-fe-ut.sh --run
org.apache.doris.catalog.CreateFunctionTest
- Regression test: ./run-regression-test.sh --run -d fault_injection_p0
-s test_create_function_rollback (local config selected the suite but skipped
docker body because excludeDockerTest=true)
- Behavior changed: Yes. Failed CREATE FUNCTION Nereids registration no
longer journals the failed function or removes existing overloads.
- Does this need documentation: No
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