Jal questions

• How to check which partition is a key assign to in kafka?
• What is the purpose of defining an operator class when defining index in postgres?
• Does the third rule of lifetime elision capture all cases for struct implementations?
• How does raft handle committing entries from previous one?
• Does Files.lines read all lines into memory?
• Why does "can't leak private type" only apply to structs and not enums?
• What is the null pointer optimization in Rust?

Jal answers