qidaye opened a new pull request, #59486:
URL: https://github.com/apache/doris/pull/59486
### What problem does this PR solve?
Problem Summary:
When performing a Broker Load with wildcards (e.g., `/*`), if the directory
contains
0-byte metadata files like `_SUCCESS`, the FE would incorrectly use the
format/compression
of these metadata files (usually PLAIN) to overwrite the shared parameters
for the
entire file group. This caused the BE to read compressed data files (like
LZO) as
plain text, leading to import failures.
This PR fixes the issue by:
1. Filtering out `_SUCCESS` files in `BrokerLoadPendingTask` to avoid
processing
them as data.
2. Setting `format_type` and `compress_type` in each `TFileRangeDesc`
instead of
the shared `TFileScanRangeParams` in FE (both legacy and Nereids paths).
3. Prioritizing per-file `format_type` in BE's `CsvReader` to ensure the
correct
reader is initialized for each file.
4. Adding unit tests to verify `_SUCCESS` filtering
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [x] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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