Fix to specify schema when creating or dropping an index with Db2 engine #2922
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Summary of Changes
Hello @KodaiD, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request resolves a critical issue in the Db2 engine integration where index creation and deletion operations were failing due to the omission of schema names in the generated SQL. By ensuring that all CREATE INDEX and DROP INDEX statements for Db2 explicitly include the schema, the PR enhances the robustness and correctness of database administration operations for Db2 users, mirroring a similar fix previously applied for Oracle.
Highlights
- Db2 Index Management Fix: This PR addresses a bug in the Db2 engine integration where
DROP INDEXoperations would fail with aNotFounderror if the index was created by another user, due to the lack of schema specification in the SQL statement. The fix ensures that bothCREATE INDEXandDROP INDEXstatements for Db2 now correctly include the schema name. - SQL Statement Generation Update: The
RdbEngineDb2class has been updated to modify thedropIndexSqlmethod and introduce a newcreateIndexSqlmethod. Both now generate SQL statements that explicitly qualify index names with their respective schemas, aligning with Db2's requirements for index management. - Test Case Adjustments: Existing test cases within
JdbcAdminTest.javarelated to Db2 index creation and dropping have been updated. The expected SQL strings in these tests now include the schema qualification for index names, reflecting the changes made to the SQL generation logic.
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Pull Request Overview
This PR fixes an issue with DB2 index operations where schema names were not being properly specified in CREATE INDEX and DROP INDEX SQL statements. In DB2, users must specify the schema name when creating or dropping indexes that may be accessed by other users, preventing NotFound errors during index operations.
Key changes:
- Updated
RdbEngineDb2to include schema names in index creation SQL statements by overridingcreateIndexSql - Modified
dropIndexSqlinRdbEngineDb2to include schema names in DROP INDEX statements - Updated test expectations in
JdbcAdminTestto verify the new SQL format with schema-qualified index names
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
core/src/main/java/com/scalar/db/storage/jdbc/RdbEngineDb2.java |
Added schema qualification to CREATE INDEX and DROP INDEX SQL statements for DB2 |
core/src/test/java/com/scalar/db/storage/jdbc/JdbcAdminTest.java |
Updated test expectations to match new schema-qualified index SQL format |
KodaiD
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a team,
Torch3333,
brfrn169,
feeblefakie and
komamitsu
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a team
Great catch! Maybe we should add a test case to reproduce this scenario? |
We can reproduce the issue in the permission test (#2923). |
Ah, sorry. I overlooked it. I think that's enough to check the behavior in the permission test. |
brfrn169
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brfrn169
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LGTM! Thank you!
Should we also prepare cases for that in the normal integration test side?
I think the permission test is enough, too. Thanks!
5 participants
Description
In Db2, users must specify the schema name when dropping an index that was created by another user.
However, the current implementation of
JdbcAdmindoes not do this, leading to a NotFound error when attempting to drop the index.This PR fixes the issue by specifying the schema name when creating or dropping an index in Db2.
Related issues and/or PRs
This is the similar issue to the one fixed for Oracle in #2888.
Changes made
CREATE INDEXorDROP INDEXSQL statements in Db2 engine.Checklist
Additional notes (optional)
N/A
Release notes
N/A