* fix unit tests
* fix: sqlness
* fix/default-time-window:
## Add Helper Functions and Enhance Compaction Tests
- **Refactor Compaction Logic**: Introduced helper functions `flush` and `compact` in `compaction_test.rs` to streamline compaction operations.
- **Enhance Compaction Tests**: Added a new test `test_infer_compaction_time_window` in `compaction_test.rs` to verify compaction time window inference.
- **Testing Improvements**: Added `#[cfg(test)]` attribute to `new_multi_partitions` in `time_partition.rs` to ensure it's only included in test builds.
* fix/default-time-window:
- **Refactor `TimePartition` Struct**: Removed unnecessary comments regarding `time_range` in `time_partition.rs`.
- **Enhance `TimePartitions` Functionality**: Added a method `part_duration_or_default` to provide a default partition duration in `time_partition.rs`.
- **Update SQL Test Cases**: Modified SQL operations and expected results in `scan_big_varchar.result` and `scan_big_varchar.sql` to reflect changes in data manipulation logic.
* fix/default-time-window:
### Update Time Partition Default Duration
- **Refactor Default Duration**: Introduced `INITIAL_TIME_WINDOW` constant to define the default time window duration as `Duration::from_days(1)`. This change replaces multiple instances of the hardcoded default duration across the `time_partition.rs` file.
- **Files Affected**: `time_partition.rs`
* fix/default-time-window:
## Update Partition Duration Handling
- **`time_partition.rs`**: Refactored `part_duration` to be non-optional, removing `Option` wrapper. Updated logic to use `unwrap_or` with `INITIAL_TIME_WINDOW` where necessary. Adjusted related methods and tests to accommodate this change.
- **`version.rs` (memtable and region)**: Updated handling of `part_duration` to align with changes in `time_partition.rs`, ensuring consistent use of non-optional `Duration`.
* fix/default-time-window:
### Improve Error Context in `time_partition.rs`
- Enhanced error context message in `time_partition.rs` to provide clearer information on partition time range issues, including bucket size details.
Signed-off-by: Lei, HUANG <lhuang@greptime.com>
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Signed-off-by: Lei, HUANG <lhuang@greptime.com>
