背景 问题 原因 总结 背景 MyRocks中的数据是按索引列以memcmp方式进行排序的。对于一些数字类型，需要进行转化才能直接通过memcmp进行比较， 例如有符号数在计算机中是用补码表示的，那么如果负数和正数直接按字节比较，结果负数会比正数大，实际存储时会将符号会反转存储，读取时再转化回来。对于字符类型，处理更加复杂，涉及到字符集的转换。...

Geoshape field type Example Formats Geoshape types Point Linestring Polygon Multipoint Multilinestring Multipolygon Geometry collection Envelope Parameters Geoshape ...

Segment replication Potential use cases Table of contents Segment replication Segment replication is an experimental feature with OpenSearch 2.3. Therefore, we do not recommen...

Data backup: snapshots vs. dumps Snapshots Dumps Conclusion Data backup: snapshots vs. dumps MeiliSearch has two ways to backup its data: snapshots and dumps . Snapshots S...

Fresh variables Fresh variables Once macros generate code, they are parsed with a regular Crystal parser where local variables in the context of the macro invocations are assume...

3.7.2.6. 离线能力 3.7.2.6. 离线能力 试验功能！ 下面列出的技术目前并不被所有浏览器支持（比如 service worker 在 Safari 还没实现 ） 目前，跟 Polymer 一起，还提供 Progressive Web Applications 技术，比如 web app manifest 2 在用户的...

Fresh variables Fresh variables Once macros generate code, they are parsed with a regular Crystal parser where local variables in the context of the macro invocations are assum...

Sparse vector data type Deprecated in 7.6. Sparse vector data type Deprecated in 7.6. The sparse_vector type is deprecated and will be removed in 8.0. A sparse_vector fi...

InfluxDB 1.7 documentation Key features InfluxDB 1.7 documentation InfluxDB is a time series database designed to handle high write and query loads.It is an integral componen...

3.7.2.6. 离线能力 3.7.2.6. 离线能力 试验功能！下面列出的技术目前并不被所有浏览器支持（比如 service worker 在 Safari 还没实现 ） 目前，跟 Polymer 一起，还提供 Progressive Web Applications 技术，比如 web app manifest 2 在用户的主页面展...