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Performance improvement: Avoid using sqlite3WalkerSelectExpr()

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and sqlite3WalkerSelectFrom() twice, so that the compiler will in-line their
implementation.

FossilOrigin-Name: 2b9258b8b0342330ebe8c22b59ec276fd042a05547d15b24fdf29e16280868de
This commit is contained in:
drh
2018-12-06 22:12:18 +00:00
parent a838997544
commit a37b6a5e31
3 changed files with 13 additions and 10 deletions
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9
src/expr.c
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@@ -1345,13 +1345,16 @@ static int gatherSelectWindowsCallback(Walker *pWalker, Expr *pExpr){
}
return WRC_Continue;
}
static int gatherSelectWindowsSelectCallback(Walker *pWalker, Select *p){
return p==pWalker->u.pSelect ? WRC_Continue : WRC_Prune;
}
static void gatherSelectWindows(Select *p){
Walker w;
w.xExprCallback = gatherSelectWindowsCallback;
w.xSelectCallback = 0;
w.xSelectCallback = gatherSelectWindowsSelectCallback;
w.xSelectCallback2 = 0;
w.u.pSelect = p;
sqlite3WalkSelectExpr(&w, p);
sqlite3WalkSelectFrom(&w, p);
sqlite3WalkSelect(&w, p);
}
#endif