Awuqing 29dba71b53 feat(saphana): refactor backup from SQL export to BACKUP DATA USING FILE ...

Replace the hdbsql SELECT-based schema DDL export with SAP HANA's official
BACKUP DATA USING FILE for proper data-level backup.

Changes:
- Run: issue BACKUP DATA [FOR <tenant>] USING FILE via hdbsql, package
  resulting backup files into tar archive as artifact
- Restore: extract tar, locate backup prefix, issue RECOVER DATA
  [FOR <tenant>] USING FILE ... CLEAR LOG
- Add helper functions: buildHdbsqlArgs, packageBackupFiles,
  extractTarArchive, findBackupPrefix
- Add 7 unit tests covering backup/restore/error paths

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retention

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archive.go

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command_executor.go

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command.go

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database_names.go

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database_runners_test.go

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file_runner_test.go

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file_runner.go

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helpers.go

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log_hub_test.go

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log_hub.go

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logger.go

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mysql_runner.go

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postgres_runner.go

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postgresql_runner.go

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registry_test.go

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registry.go

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saphana_runner_test.go

feat(saphana): refactor backup from SQL export to BACKUP DATA USING FILE

2026-03-24 18:24:12 +08:00

saphana_runner.go

feat(saphana): refactor backup from SQL export to BACKUP DATA USING FILE

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sqlite_runner_test.go

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sqlite_runner.go

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temp_files.go

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types.go

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