Java开源NoSQL数据库, OrientDB 1.7.1 发布
OrientDB是一个NoSQL数据库管理系统,在普通硬件上每秒可以存储15万份文档。它是一个基于文档的数据库,关系在图形数据库中管理,与记录之间直接连接。你可以在几毫秒内遍历树和图的记录的全部或部分。它支持 schema-less, schema-full, 和schema-mixed 模式,具有一个基于用户和角色,很强的安全性分析系统。支持SQL查询语言。
OrientDB 1.7.1 发布了,这也是 1.7 RC2 版本。该版本主要包含如下改进:
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Core:
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supported retro-compatibility for databases created with OrientDB v1.5 or further (#1899)
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improved performance on ORDER BY against indexes (#1843)
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improved performance on RENAME CLASS (#1818)
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Graph:
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added support for vertex-centric traversal by using SQL (#2079)
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SQL:
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new UPSERT keyword to execute an INSERT or UPDATE based on a condition (#2032)
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UPDATE now can ADD also to sub-document fields (#2031)
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Indexes:
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added support for external engines (#1774)
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Studio:
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new Query Timeline to the History, new Index Panel, Fixed many bug