OpenTenBase / OpenTenBase/TXSQL
Bug #34893684: Alter Table IMPORT TABLESPACE crashes after upgrade
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- Dominant language
- C++
- Stars
- 337
- Forks
- 234
- PR merge metrics
- No merged PRs in 30d
Description
PROBLEM:
- In current version pattern for naming hidden dropped column has
changed. - When cfg file is taken from older version hidden dropped column
name follows old pattern. - When INSTANT operations are done in current version exactly in same
order as done before creating cfg file, then the server crashes.
FIX:
- When searching dropped column with older name version returns null,
IMPORT fails with error SCHEMA_MISMATCH.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the Alter Table IMPORT TABLESPACE path and the handling of hidden dropped-column names during INSTANT operations. Reproduce the upgrade scenario using an older cfg file, then verify that a missing old-pattern column produces SCHEMA_MISMATCH instead of a server crash.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100