待验证50% 置信权衡取舍精确时间

UUID字符串形式占用36字节，相比BIGINT的8字节占用空间更大，且随机插入会造成B+树页分裂频繁，影响写入性能

1

来源数

50%

置信度

长期有效

时效性

2026/9/11

首次发现

来源

SQL数据类型完全指南：分类、选择与最佳实践

涉及实体

UUIDconcept BIGINTconcept

相关事实

待验证In traditional RAG document chunking, documents are split into fixed-length segments (e.g., 256 characters) with some overlap between segments to maintain semantic coherence61% 相似

引用此条事实

Stable URI

https://kongchang.com/claim/900111

API

curl https://kongchang.com/api/v1/knowledge/claims/900111

MCP

get_claim(id=900111)