通过案例学调优之--IndexFULLSCAN和IndexFASTFULLSCAN:通过案例学调优之--IndexFULLSCAN和IndexFASTFULLSCANIndexFULLSCAN和ndexFASTFULLSCAN工作原理：IndexFULLSCAN和IndexFASTFULLSCAN的适用情况：适用于我们想选 INDEX FAST FULL SCAN：HINT写法：INDEX_FFS(表名