robertmu opened a new pull request, #34:
URL: https://github.com/apache/cloudberry-gpbackup/pull/34
The original logic for detecting pre-GPDB6 backups was designed for a
Greenplum-only environment. In that context, the `gpbackup` process stripped
the `(Greenplum Database ...)` prefix, and the restore logic correctly parsed
the raw version number from `config.yaml`.
With the introduction of support for Cloudberry, `config.yaml` now retains
the full, prefixed version string to differentiate between database vendors.
The existing restore logic was not designed to handle these prefixed strings
and would fail to parse the major version correctly, leading to improper
`gp_use_legacy_hashops` settings and data distribution errors.
This commit refactors the detection mechanism to be database-aware. It now
uses the standard `dbconn.GPDBVersion.ParseVersionInfo` to robustly handle
various version formats. The logic now explicitly checks if the backup is from
Greenplum (`IsGPDB()`) before checking if it is a legacy version
(`Before("6")`).
This ensures restore operations are reliable in a multi-database
environment, correctly applying legacy settings only to actual legacy Greenplum
backups while properly handling modern Cloudberry and Greenplum backups.
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