Example 1: Filesort 1->Sort:sbtest1.id(actualtime=2043.416..2051.792rows=68440loops=1)0->Indexrangescanonsbtest1usingk_1,withindexcondition:(sbtest1.k<450000)(actualtime=109.302..1996.350rows=68440loops=1) In chapter 2 ofEfficient MySQL Performance, which teaches index and indexing, I take...
As per terminology, we adopt the definition ofrumorsused in17. In this work, rumors refer to content that can be identified as true or false through fact-checking. This definition emerged in the 1940’s in social psychology literature57,58, formalizing it as a proposition involving person-to-...
The terminology is slightly different when you are dealing with primitives. Because of some other differences between double and int, I will modify your example slightly: ? 1 2 [B]long[/B] a = int b; int c = (int)a; The first conversion is called "widening" because a long has more...