清空数据库
MATCH (n) DETACH DELETE n

##显示索引
SHOW INDEXES

删除索引
DROP INDEX book_embeddings
DROP INDEX author_embeddings
创建索引
CREATE VECTOR INDEX book_embeddings IF NOT EXISTS
FOR (m:Book) ON m.embedding
OPTIONS { indexConfig: {
  `vector.dimensions`: 2560,
  `vector.similarity_function`: 'cosine'
}}


CREATE VECTOR INDEX author_embeddings IF NOT EXISTS
FOR (m:Author) ON m.embedding
OPTIONS { indexConfig: {
  `vector.dimensions`: 2560,
  `vector.similarity_function`: 'cosine'
}}