API

Delta Lake API

Is it independent from Spark?

Delta Spark

API Docs

• python
• Scala
• java

Delta Rust

Crate deltalake

Delta Transaction Protocol

Databricks Runtime, Spark Delta Connector and 3rd party implementation must be strictly compliant to Delta Transaction Protocol

Downgrade by DROP FEATURE

• 2pc operation
  • p1: 运行 DROP FEATURE，禁用相关属性，重写数据文件，等待 24 小时。
  • p2: 再次运行 DROP FEATURE ... TRUNCATE HISTORY，清除历史记录并降级协议。