Google BigTable 中的最大列数

Question

我找到了有关 BigQuery 中最大列数 (10K) 的文档，但我似乎找不到有关 BigTable 的信息。

Answer 1

Cloud BigTable Quota & Limits documentation has a section about data size limits within tables:

As a best practice, design your schema to keep the size of your data below these recommended limits:

• A single row key: 4 KB
• Column families per table: 100
• A single column qualifier: 16 KB
• A single value in a table cell: 10 MB
• All values in a single row: 100 MB

In addition, you must ensure that your data fits within these hard limits:

• A single value in a table cell: 100 MB
• All values in a single row: 256 MB

在 BigTable 中，表中的数据往往受数据大小的限制，而不是受列数或行数的限制（"Column families per table" 除外）。

另一方面，有一个 maximum of tables that a Cloud BigTable instance supports，它有 1.000 张桌子。