feat: Add OceanBase as Primary Database Support #12827
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What problem does this PR solve?
This PR adds support for OceanBase as the primary database in RAGFlow, allowing users to leverage OceanBase's high availability and scalability features.
Background:
RAGFlow currently supports MySQL and PostgreSQL as primary databases
OceanBase is a distributed relational database with MySQL compatibility mode
This feature is part of the RAGFlow + OceanBase Hackathon initiative
Key Changes:
Created RetryingPooledOceanBaseDatabase class inheriting from Peewee's MySQL database class
Added OceanBase to PooledDatabase, DatabaseMigrator, TextFieldType, and DatabaseLock enums
Implemented OceanBaseDatabaseLock for distributed locking support
Updated configuration templates for OceanBase connection settings
Added CI tests for OceanBase database scenarios
Usage:
Users can switch to OceanBase by setting the environment variable:
DB_TYPE=oceanbase
Related Files:
api/db/db_models.py - Database model definitions and connection classes
docker/.env - Environment variable configuration
docker/service_conf.yaml.template - Service configuration template
Technical Specification:
See docs/oceanbase-primary-db-technical-spec.md for detailed implementation plan.
Type of change