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Performance optimization to the OP_Next and OP_Prev opcodes.

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FossilOrigin-Name: ecaac28a2e78aca148fc614fe54bf2706aed8be2
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drh
2013-11-21 03:12:25 +00:00
parent 3630a408f2
commit f93cd949a0
5 changed files with 51 additions and 34 deletions
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2
src/where.c
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@@ -2406,7 +2406,7 @@ static int codeEqualityTerm(
}else{
pIn->addrInTop = sqlite3VdbeAddOp3(v, OP_Column, iTab, 0, iReg);
}
pIn->eEndLoopOp = bRev ? OP_Prev : OP_Next;
pIn->eEndLoopOp = bRev ? OP_PrevIfOpen : OP_NextIfOpen;
sqlite3VdbeAddOp1(v, OP_IsNull, iReg);
}else{
pLevel->u.in.nIn = 0;