#sql語句
select * from (SELECT id,features,1 - (features <-> ?) as similarity FROM items ORDER BY features <-> ? LIMIT 5) as faces where faces.similarity between 0.8 and 1.0
#jdbc
<dependency>
<groupId>com.pgvector</groupId>
<artifactId>pgvector</artifactId>
<version>0.1.3</version>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.8.16</version>
</dependency>
