officialasishkumar opened a new pull request, #63216:
URL: https://github.com/apache/doris/pull/63216
### What problem does this PR solve?
Issue Number: close #62226
Related PR: None
Problem Summary:
`ALTER MATERIALIZED VIEW db.mv RENAME db.new_mv` failed during parsing
because the MTMV `RENAME` target accepted only a single identifier. The
underlying rename still operates inside the source database, so this PR parses
the target as a multipart identifier and validates that any supplied catalog or
database qualifier matches the source materialized view.
### Release note
Support qualified target names in `ALTER MATERIALIZED VIEW ... RENAME` when
the qualifier matches the source materialized view.
### 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
- Behavior changed:
- [ ] No.
- [x] Yes. Qualified rename targets for MTMV are now accepted when they
resolve to the same catalog and database.
- 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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