Encountering an “unknown GraphQL query” error in GraphJin typically indicates that the system doesn’t recognize the specified query, often due to schema discrepancies or misconfigurations.

To address this issue, consider the following steps:

1. Verify Database Schema Synchronization:

• Ensure that your database schema is current and accurately reflects all tables and relationships.
• GraphJin performs automatic database discovery to build a relationship graph, which it uses to generate efficient SQL queries from GraphQL requests.

2. Review GraphQL Query Structure:

• Confirm that your GraphQL queries align with the existing schema, using correct field names and types.
• Ensure that any fragments or nested queries are properly defined and referenced.

3. Check GraphJin Configuration:

• Examine the config.yaml file to verify that all settings, such as database connections and schema paths, are correctly configured.
• Ensure that GraphJin has the necessary permissions to access and introspect the database schema.

4. Restart GraphJin Service:

• After making changes to the schema or configuration, restart the GraphJin service to apply updates.
• Clearing any caches or temporary data can also help resolve lingering issues.

5. Consult Documentation and Community Resources:

• Refer to the GraphJin Quick Start Guide for setup and configuration insights.
• Engage with community forums or support channels for assistance with specific errors or use cases.

By systematically addressing these areas, you can identify and resolve the “unknown GraphQL query” error in GraphJin, ensuring seamless integration between your GraphQL queries and the underlying database.