AntiTopQuark opened a new pull request, #65858:
URL: https://github.com/apache/doris/pull/65858
### What problem does this PR solve?
Issue Number: close #61056
Related PR: #None
Problem Summary:
Add create-time Row TTL support with a hidden TTL column for both
source-time and direct-expiration tables. The implementation removes dynamic
ALTER enablement and dedicated full schema-change/backfill paths, keeps TTL
configured only at CREATE TABLE time, and treats TTL as a post-merge row
visibility rule composed with delete sign. Storage keeps ordinary compaction
policy while filtering expired rows during reads and natural rewrite paths.
FE/BE tests and regression cases cover property validation, hidden column
construction, tablet schema propagation, visibility filtering, partial updates,
planning behavior, and ALTER rejection.
### Release note
Support Row TTL configured at CREATE TABLE time; ALTER dynamic Row TTL
enablement is not supported.
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [x] Regression test
- [x] Unit Test
- [x] 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:
- [ ] No.
- [x] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] 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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