atifiu opened a new pull request, #57832:
URL: https://github.com/apache/doris/pull/57832
…e_names=1
Fixes #57773
Problem:
When lower_case_table_names=1, temporary tables failed in operations like
CREATE TEMP LIKE on partitioned tables and INSERT OVERWRITE due to missing
display name → internal name mapping.
Root cause:
- Temp tables use internal names: sessionId_#TEMP#_displayName
- lowerCaseToTableName only mapped internal → internal
- Missing: display (lowercased) → internal mapping
- Result: lookup by display name failed
Solution:
1. Database.registerTable: Add display name → internal name mapping
2. Database.getTableNullable: Resolve temp inner names in mode=1
3. Util: Normalize temp table utilities with case-insensitive checks
4. FeNameFormat: Add TEMPORARY_TABLE_SIGN_LOWER constant
5. ShowTableStatusCommand: Apply LOWER() for consistent filtering
Testing:
- Added regression-test/suites/temp_table_p0/ with 2 scenarios
- Scenario 1: CREATE TEMP LIKE on AUTO LIST PARTITION table
- Scenario 2: INSERT OVERWRITE on temp table
- Added comprehensive unit tests for utilities
- Validated manually against FE with lower_case_table_names=1
All scenarios now pass with correct row counts.
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] 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:
- [ ] No.
- [ ] 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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