hoshinojyunn opened a new pull request, #65215:
URL: https://github.com/apache/doris/pull/65215
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary: `SHOW DATA ALL` returns detailed database data with 9
metadata columns after `LocalBinlogSize` was added, but the `Quota` and `Left`
summary rows still contained only 8 values. The FE MySQL protocol writer sends
the 9-column metadata first and then serializes each row as-is, so MySQL
clients see an inconsistent result packet and report `ERROR 2027 (HY000):
Malformed packet`. This change pads the detailed `Quota` and `Left` rows with
the missing `LocalBinlogSize` column and adds unit coverage to assert detailed
`SHOW DATA` rows match metadata width.
### Release note
Fix `SHOW DATA ALL` malformed packet caused by inconsistent result row width.
### Check List (For Author)
- Test
- [ ] 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
Unit Test:
`./run-fe-ut.sh --run
org.apache.doris.nereids.trees.plans.commands.ShowDataCommandTest`
- Behavior changed:
- [ ] No.
- [x] Yes. `SHOW DATA ALL` now returns valid result packets instead of
malformed packets when detailed summary rows are emitted.
- Does this need documentation?
- [x] No.
- [ ] Yes.
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label
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