漏洞
When a feature class has a shape field size above and below 10kb, array fetching is used for the first 100 features and row by row is used for the rest.
| 漏洞 ID 编号 | BUG-000119498 |
|---|---|
| 已提交 | January 18, 2019 |
| 上次修改时间 | June 5, 2024 |
| 适用范围 | ArcSDE/Enterprise Geodatabase |
| 找到的版本 | 10.6 |
| 操作系统 | Windows OS |
| 操作系统版本 | 10.0 64 Bit |
| 状态 | Known Limit |
附加信息
Beginning with 10.4.x, ArcGIS began using read committed snapshot isolation when working with databases in SQL Server. This moved forced the adoption of keyset cursors, and while array fetching definitely helps improve performance for fetching data from the keyset cursor, the size of the data fetched becomes important. The decision was made to allow shapes that were less than 10 KB to be fetched with array fetching, and larger are fetched row by row.解决办法
Dice operation using a vertex limit of 425 (above which is 10kb), results in a shape size of 9kb for all features 10kb and up, therefore improving performance through array fetching.
重现步骤
漏洞 ID: BUG-000119498
软件:
- ArcSDE/Enterprise Geodatabase
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