kamome

The include miss in Project 3-Hash join

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the output like this /root/cmudb/src/execution/hash_join_executor.cpp: In member function ‘virtual void bustub::HashJoinExecutor::Init()’: /root/cmudb/src/execution/hash_join_executor.cpp:34:41: error: invalid use of incomplete type ‘const class bustub::AbstractExpression’ 34 | val = plan_->LeftJoinKeyExpression()->Evaluate(&left_tuple, plan_->GetLeftPlan()->OutputSchema()); The GetLeftPlan() can...

How to draw string in one line with different colors

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I try to use the function DrawString draw it one by one and change the color , but it hard to know how much advanceWidth I should move,so I can't...

目前的trait加法以及继承 ``` rust trait A { fn a() bool; } trait B { fn b() i64; } trait C: A+B { fn c() void; } ``` 相当于C继承了A、B的方法变成 ``` rust trait...