OrientDB 2.1-rc1 发布,此版本解决了 104 个 issues,主要更新内容如下: Schema: Support for Multiple inheritance where classes can extend from multiple super classes Support for default values (functions are allowed) Core: Improved WAL management (Journal) to enforce Consistency with transactions Fetch-plan supports wildcard for names SQL: New SQL parser by default on with new databases and off with those created with old versions Prepared Statements and substitution of parameters and target New Live Query to write Reactive applications New optimization about using of indexes in sub-classes if present New concat() function Distributed: Support for slave (read-only) nodes Included Hazelcast-all.jar including also Cloud support ETL: Skip duplicated vertices Bug fixing: 104 issues in total 此版本现已提供下载: https://github.com/orientechnologies/orientdb/archive/2.1-rc1.zip Orient DB 是一个可伸缩的文档数据库,支持 ACID 事务处理。使用 Java 5 实现。 OrientDB 2.1-rc1 发布,文档数据库下载地址