[Bug]: Migration to Postgresql 15 fails
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Description
⚠️ This issue respects the following points: ⚠️
- This is a bug, not a question or a configuration/webserver/proxy issue.
- This issue is not already reported on Github (I've searched it).
- Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
- Nextcloud Server is running on 64bit capable CPU, PHP and OS.
- I agree to follow Nextcloud's Code of Conduct.
Bug description
The migration from MariaDB to Postgresql 15 fails.
resynchronizeDatabaseSequences function fails with an error nextcloud.xxx_id_seq', (SELECT MAX() FROM ))
Steps to reproduce
- Get nextcloud on MariaDB
- Install Postgresql 15 with user nextcloud and schema nextcloud
- Launch the migration with occ db:convert-type
- The migration fails during the resynchronization of the database sequences
Expected behavior
The migration should end without any problem and the database configuration of Nextcloud should point to the new Postgres database.
Installation method
Other Community project
Operating system
None
PHP engine version
None
Web server
None
Database engine version
PostgreSQL
Is this bug present after an update or on a fresh install?
None
Are you using the Nextcloud Server Encryption module?
None
What user-backends are you using?
- Default user-backend (database)
- LDAP/ Active Directory
- SSO - SAML
- Other
Configuration report
No response
List of activated Apps
- activity: 2.17.0
- circles: 25.0.0
- cloud_federation_api: 1.8.0
- comments: 1.15.0
- dashboard: 7.5.0
- dav: 1.24.0
- federatedfilesharing: 1.15.0
- federation: 1.15.0
- files: 1.20.1
- files_pdfviewer: 2.6.0
- files_rightclick: 1.4.0
- files_sharing: 1.17.0
- files_trashbin: 1.15.0
- files_versions: 1.18.0
- firstrunwizard: 2.14.0
- logreader: 2.10.0
- lookup_server_connector: 1.13.0
- nextcloud_announcements: 1.14.0
- notifications: 2.13.1
- oauth2: 1.13.0
- password_policy: 1.15.0
- photos: 2.0.1
- privacy: 1.9.0
- provisioning_api: 1.15.0
- recommendations: 1.4.0
- related_resources: 1.0.3
- serverinfo: 1.15.0
- settings: 1.7.0
- sharebymail: 1.15.0
- support: 1.8.0
- systemtags: 1.15.0
- text: 3.6.0
- theming: 2.0.1
- twofactor_backupcodes: 1.14.0
- updatenotification: 1.15.0
- user_status: 1.5.0
- viewer: 1.9.0
- weather_status: 1.5.0
- workflowengine: 2.7.0
Nextcloud Signing status
No response
Nextcloud Logs
No response
Additional info
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The entry point is occ db:convert-type; reproduce the MariaDB-to-PostgreSQL 15 migration and inspect resynchronizeDatabaseSequences, where the reported sequence error occurs. Done means the migration completes and Nextcloud points to the new PostgreSQL database.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- mariadb, php, postgresql
- Domain
- backend, databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100