thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-25 17:12:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

delete quoat English text，change the translation

Browse Source 
As the title says，I delete quoat English text.The Chinese translation has been modified to make it easier for readers to understand.
This commit is contained in:
iammagicc 2023-03-21 22:09:10 +08:00 committed by GitHub
parent 04bfc1848b
commit 214bcdda47
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
docs/zh/guides/improving-query-performance/sparse-primary-indexes.md
View File

@ -337,25 +337,21 @@ UserID.bin，URL.bin，和EventTime.bin是<font face = "monospace">UserID</font>
:::note
- 为什么上面和接下来的图片中显示的橙色数据与结论（1.最后一个颗粒我们标记的是最大的值；2.索引条目(索引标记)不是基于表中的特定行，而是基于颗粒。）不符合？
- 因为图中的数据是禁用了自适应索引粒度后得到的，默认情况下索引粒度是自适应的。
- 因为图中的数据是禁用了自适应索引粒度后得到的（中文文档中直接引用了英文官方文档的图片内容），默认情况下索引粒度是自适应的。而基于自适应索引粒度的表中的数据就会像上述结论中一样，下文将会分析和讲解这些问题。
- 下面是英文官方文档和版本更新的描述信息。
- 下面分别是英文官方文档和版本更新网页中的描述信息，您可以开启翻译找到对应的描述。
- https://clickhouse.com/docs/en/optimize/sparse-primary-indexes
- We mentioned in the beginning of this guide in the "DDL Statement Details", that we disabled adaptive index granularity (in order to simplify the discussions in this guide, as well as make the diagrams and results reproducible).
- For tables with adaptive index granularity (index granularity is adaptive by default) the size of some granules can be less than 8192 rows depending on the row data sizes.
- 我们在本指南开头的“DDL 语句详细信息”中提到，我们禁用了自适应索引粒度（为了简化本指南中的讨论，并使图表和结果可重现）。
- 对于具有自适应索引粒度的表（默认情况下索引粒度是自适应的），某些粒度的大小可以小于 8192 行，具体取决于行数据大小。
- https://clickhouse.com/docs/en/whats-new/changelog/2019#experimental-features-1
- ClickHouse Release 19.6.3.18, 2019-06-13
- Experimental Features：实验性特性
- Add setting index_granularity_bytes (adaptive index granularity) for MergeTree* tables family.
- 为合并树系列的表家族添加设置index_granularity_bytes（自适应索引粒度）。
- 为合并树家族的表设置index_granularity_bytes（自适应索引粒度）。
- ClickHouse Release 19.10.1.5, 2019-07-12
- Performance Improvement：优化改进
- Add the possibility to write the final mark at the end of MergeTree columns. It allows to avoid useless reads for keys that are out of table data range. It is enabled only if adaptive index granularity is in use.
- 添加在合并树列末尾写入最终标记的可能性。它允许避免对超出表数据范围的键进行无用的读取。仅当使用自适应索引粒度时，才会启用它。
- 添加在合并树列末尾写入最终标记的可能性。它可以避免对超出表数据范围的键进行无用的读取。仅当使用自适应索引粒度时，才会启用它。
:::
:::note