Immediate Persistence of DDL Changes#62
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- Added `persist` method to `KeyValueStore` trait. - Implemented `persist` for `SimpleFileKvStore` (delegating to `persistence::save_data_to_disk`) and `InMemoryKvStore` (no-op). - Updated `QueryExecutor::persist_store` to call `store.persist()`. - Enforced immediate persistence in `handle_create_table` and `handle_drop_table` to ensure schema durability. - Updated `executor_tests` to handle `RankedResults` return type for Select queries.
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Review by RecurseML
🔍 Review performed on f800c40..ac62311
| Severity | Location | Issue | Delete |
|---|---|---|---|
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src/core/query/executor/ddl_handlers.rs:113 | Method does not exist |  |
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src/core/query/executor/ddl_handlers.rs:210 | Method does not exist | |
✅ Files analyzed, no issues (5)
• src/core/query/executor/executor.rs
• src/core/query/executor/tests/executor_tests.rs
• src/core/storage/engine/implementations/file_storage/store.rs
• src/core/storage/engine/implementations/in_memory.rs
• src/core/storage/engine/traits/mod.rs
| // IndexManager::create_index typically handles its own persistence for index metadata. | ||
| // Persist schema changes and new index metadata immediately to ensure safety. | ||
| // This acts as a checkpoint for DDL operations. | ||
| self.persist()?; |
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This line calls self.persist() on a QueryExecutor<S> instance, but QueryExecutor does not have a persist() method. The persist() method was added to the KeyValueStore trait, not to QueryExecutor. This will cause a compilation error: 'no method named persist found for struct QueryExecutor<S> in the current scope'. The correct call should be self.persist_store()?; which is the wrapper method defined in executor.rs at line 224 that properly calls self.store.write()?.persist().
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| // Persist changes immediately to ensure safety. | ||
| // This acts as a checkpoint for DDL operations. | ||
| self.persist()?; |
There was a problem hiding this comment.
This line calls self.persist() on a QueryExecutor<S> instance, but QueryExecutor does not have a persist() method. The persist() method was added to the KeyValueStore trait, not to QueryExecutor. This will cause a compilation error: 'no method named persist found for struct QueryExecutor<S> in the current scope'. The correct call should be self.persist_store()?; which is the wrapper method defined in executor.rs at line 224 that properly calls self.store.write()?.persist().
React with 👍 to tell me that this comment was useful, or 👎 if not (and I'll stop posting more comments like this in the future)
This PR addresses the need for immediate persistence of schema changes (DDL operations) to ensure durability. It introduces a
persistmethod to theKeyValueStoretrait and implements it for file-based and in-memory stores. TheQueryExecutor's DDL handlers now invoke this persistence mechanism after schema modifications. Additionally, tests were updated to align with the currentExecutionResulttypes.PR created automatically by Jules for task 10695699377852798114 started by @ryancinsight
High-level PR Summary
This PR introduces immediate persistence for DDL (Data Definition Language) operations to ensure schema changes are durably written to disk. It adds a
persistmethod to theKeyValueStoretrait and implements it for both file-based and in-memory storage backends. The DDL handlers forCREATE INDEXandDROP TABLEoperations now callpersist()immediately after making schema modifications to act as a checkpoint. Test cases were also updated to handle theRankedResultsvariant ofExecutionResult.⏱️ Estimated Review Time: 5-15 minutes
💡 Review Order Suggestion
src/core/storage/engine/traits/mod.rssrc/core/storage/engine/implementations/in_memory.rssrc/core/storage/engine/implementations/file_storage/store.rssrc/core/query/executor/executor.rssrc/core/query/executor/ddl_handlers.rssrc/core/query/executor/tests/executor_tests.rssrc/core/query/executor/tests/executor_tests.rs