Help with basic understanding of LightRAG

[khaidoan]

I have read some basic online articles and tutorials, but I still have some questions:

I've setup a PostgreSQL database, with the age and vector extension running. I've followed the example (https://github.com/HKUDS/LightRAG/blob/main/examples/lightrag_zhipu_postgres_demo.py), and able to use LightRAG to answer some questions.

However, I am trying to validate my understanding, and ensure that I have everything setup correctly by digging deeper into the PostgreSQL tables.

I see that the chunk_entity_relation graph or namespace is created when I run:

SELECT * FROM ag_catalog.ag_graph;

When I run:
SELECT * FROM pg_tables WHERE schemaname = 'public' AND tablename LIKE 'lightrag_%'

I see that it created the following tables:

lightrag_doc_chunks lightrag_doc_full lightrag_doc_status lightrag_llm_cache lightrag_vdb_entity lightrag_vdb_relation
I have some python code that supposed to display the graph. However, it is displaying IDs, which is not very friendly. I want to display the node's name, title, or label. When I run the query:

SELECT * FROM cypher('chunk_entity_relation', $$ MATCH (n) RETURN id(n) AS id, labels(n) AS labels, properties(n) AS props $$) AS (id agtype, labels agtype, props agtype);

I see that I have the following properties: node_id, source_id, description, entity_type, but I do not have a property such as name, or title. Am I missing something? How can I display the name of the character on the graph instead of node ID?

Thank you!
Khai

[ntsarb]

I see that it created the following tables:

lightrag_doc_chunks lightrag_doc_full lightrag_doc_status lightrag_llm_cache lightrag_vdb_entity lightrag_vdb_relation I have some python code that supposed to display the graph. However, it is displaying IDs, which is not very friendly. I want to display the node's name, title, or label. When I run the query:

The lightrag_vdb_entity and lightrag_vdb_relation should contain the named entities, don't they? I haven't yet tested postgres, but the default setup produces JSON files containing this information, hence, I would expect it to be found in the corresponding postgresql tables, too.