5.1.12. 自然ID(natural-id) 5.1.12. 自然ID(natural-id) <natural-id mutable = "true|false" /> <property ... /> <many-to-one ... /> ...... </na...

15.9. 根据自然标识查询(Queries by natural identifier) 15.9. 根据自然标识查询(Queries by natural identifier) 对大多数查询，包括条件查询而言，因为查询缓存的失效(invalidation)发生得太频繁，查询缓存不是非常高效。然而，有一种特别的查询，可以通过不变的自然键优化缓存的...

Card Properties Content Types Sizing Text alignment Header and Footer Image caps Image overlays Background variants Outline variants Groups Decks Columns Card im...

Serializing Django objects Serializing data Subset of fields Inherited models Deserializing data Serialization formats XML JSON DjangoJSONEncoder JSONL YAML Natural keys...

Serializing Django objects Serializing data Subset of fields Inherited models Deserializing data Serialization formats XML JSON DjangoJSONEncoder JSONL YAML Natural keys...

Serializing Django objects Serializing data Subset of fields Inherited models Deserializing data Serialization formats XML JSON DjangoJSONEncoder YAML Natural keys Deseria...

cursor.hint() Definition Behavior Examples Specify an Index Force Collection Scans cursor.hint() Definition cursor. hint (index) mongo Shell Method This page docum...

Serializing Django objects Serializing data Subset of fields Inherited models Deserializing data Serialization formats XML JSON DjangoJSONEncoder YAML Natural keys Deseria...

Serializing Django objects Serializing data Subset of fields Inherited models Deserializing data Serialization formats XML JSON DjangoJSONEncoder YAML Natural keys Deseria...

Serializing Django objects Serializing data Subset of fields Inherited models Deserializing data Serialization formats XML JSON DjangoJSONEncoder JSONL YAML Natural keys...