Backend changes:
- SQL Server dialect: GETDATE() → SYSUTCDATETIME()
- MySQL dialect: NOW() → UTC_TIMESTAMP()
- Ensures OperationTime and EndTime use consistent UTC timezone
Frontend changes:
- formatDateTime: display UTC timestamps in user's local timezone
- Uses getFullYear/getMonth/getDate/getHours (local) instead of UTC methods
Data migration:
- Executed migration script to fix historical OperationTime records
- All existing records now have correct UTC timestamps
- Execution duration now accurate (minutes, not hours)
Impact:
- New executions store UTC timestamps correctly
- UI displays times in user's local timezone (UTC+8 for CN users)
- Historical data corrected via migration
- Time difference between OperationTime and EndTime now accurate
- Fix dialect files to use relative paths instead of @types alias
- Add 'postgresql' to BIPUsersDAO dbType union
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add three SqlDialect implementations with a factory function:
- MySqlDialect: positional ?, ON DUPLICATE KEY UPDATE, LIMIT/OFFSET
- SqlServerDialect: @pN params, MERGE USING, OFFSET/FETCH
- PostgreSqlDialect: $N (1-based), ON CONFLICT DO UPDATE, LIMIT/OFFSET
TDD approach: 43 tests written first, all passing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
