database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-14 00:22:38 +03:00
Code Activity

Experimental changes to improve the performance of OP_Next.

Browse Source 
FossilOrigin-Name: 1a249845251199c00817893add300a1a654b4df9
This commit is contained in:
dan
2011-08-27 18:48:57 +00:00
parent 3d4435b234
commit a205a486d2
6 changed files with 60 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/vdbeaux.c
View File

@@ -433,6 +433,12 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){
n = pOp[-1].p1;
if( n>nMaxArgs ) nMaxArgs = n;
#endif
}else if( opcode==OP_Next ){
pOp->p4.xAdvance = sqlite3BtreeNext;
pOp->p4type = P4_ADVANCE;
}else if( opcode==OP_Prev ){
pOp->p4.xAdvance = sqlite3BtreePrevious;
pOp->p4type = P4_ADVANCE;
}
if( (pOp->opflags & OPFLG_JUMP)!=0 && pOp->p2<0 ){