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title: 向量搜索限制 | ||
summary: 本文介绍 TiDB 的向量搜索限制。 | ||
summary: 了解 TiDB 向量搜索功能的限制。 | ||
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# 向量搜索限制 | ||
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本文档介绍 TiDB 向量搜索的已知限制。我们会持续新增更多功能来提升使用体验。 | ||
本文档介绍 TiDB 向量搜索的已知限制。在未来的版本中,我们会持续新增更多功能来提升使用体验。 | ||
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- 向量最大支持 16383 维。 | ||
- 向量数据中不支持 `NaN`、`Infinity` 和 `-Infinity` 浮点数。 | ||
- 目前,向量数据类型不能存储双精度浮点数。计划在未来的版本中支持这一功能。在此期间,如果为向量数据类型导入双精度浮点数,它们将被转换为单精度数。 | ||
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- 目前,向量数据类型不支持存储双精度浮点数(该功能计划在未来的版本中支持)。当向 TiDB 中的向量字段插入或存储数据时,如果这些数据的类型是双精度浮点数,TiDB 会将这些双精度浮点数自动转换为单精度浮点数。 | ||
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## 反馈 | ||
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我们非常重视您的反馈意见,并随时准备为您提供帮助: | ||
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- [Join our Discord](https://discord.gg/zcqexutz2R) | ||
- [Visit our Support Portal](https://tidb.support.pingcap.com/) | ||
我们非常重视您的反馈意见。如果在开发的过程中遇到问题,可以在 [AskTUG](https://asktug.com/?utm_source=docs-cn-dev-guide) 上进行提问,寻求帮助。 |