#V2
SELECT id, title, embedding IS NOT NONE as has_embedding, coords_3d IS NOT NONE as has_coords FROM node LIMIT 10;
SELECT count() as total FROM node GROUP ALL; SELECT count() as with_embeddings FROM node WHERE embedding IS NOT NONE GROUP ALL; SELECT count() as with_coords FROM node WHERE coords_3d IS NOT NONE GROUP ALL;
SELECT id, title, user_did FROM node LIMIT 5;
SELECT * FROM links_to LIMIT 10;
SELECT id, title, coords_3d FROM node LIMIT 5;