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Small size reduction and performance enhancement in whereScanInit().

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FossilOrigin-Name: c23f5ef337533c1ec6e3ba78a2910352181cc9ee
This commit is contained in:
drh 2016-10-26 18:41:43 +00:00
parent 392ddeb12d
commit 9904298bb3
3 changed files with 20 additions and 21 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Small\ssize\sreduction\sand\sperformance\simprovement\sin\swhereScanNext().
D 2016-10-26T17:57:40.045
C Small\ssize\sreduction\sand\sperformance\senhancement\sin\swhereScanInit().
D 2016-10-26T18:41:43.441
F Makefile.in 6fd48ffcf7c2deea7499062d1f3747f986c19678
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc 5151cc64c4c05f3455f4f692ad11410a810d937f
@ -468,7 +468,7 @@ F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
F src/wal.c 0b44e89742024d3b6992bf404d2ab692113e1e60
F src/wal.h bf03a23da3100ab25e5c0363450233cfee09cfc2
F src/walker.c 91a6df7435827e41cff6bb7df50ea00934ee78b0
F src/where.c 694dd84a7017f2b284e1da55b5bf00bfd3e1f4e4
F src/where.c 952f76e7a03727480b274b66ca6641b1657cd591
F src/whereInt.h 2bcc3d176e6091cb8f50a30b65c006e88a73614d
F src/wherecode.c 717a65294df46f30e9b9933d2a63a4bcbca5a9a8
F src/whereexpr.c 379d0017fb7bc9e5a4d8cd4b056c747de946430e
@ -1528,7 +1528,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P ec9dab8054c71d112c68f58a45821b38c2a45677
R 48fa39390c766bcfb2f028645ad7c897
P d861ee17eb900a607de6ec3f4a5d5c24cfb834a0
R bd2e0f7c23b42c2ba66bc7a6e23d9160
U drh
Z 1bf2b72e2a8cf9aca52b2af50acc10fd
Z f746697b9b9d8bf9f72c796f60e10bfb

2
manifest.uuid
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@ -1 +1 @@
d861ee17eb900a607de6ec3f4a5d5c24cfb834a0
c23f5ef337533c1ec6e3ba78a2910352181cc9ee

27
src/where.c
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@ -202,7 +202,6 @@ static WhereTerm *whereScanNext(WhereScan *pScan){
pWC = pScan->pWC;
while(1){
iColumn = pScan->aiColumn[pScan->iEquiv-1];
if( iColumn==XN_EXPR && pScan->pIdxExpr==0 ) return 0;
iCur = pScan->aiCur[pScan->iEquiv-1];
assert( pWC!=0 );
do{
@ -299,24 +298,24 @@ static WhereTerm *whereScanInit(
u32 opMask, /* Operator(s) to scan for */
Index *pIdx /* Must be compatible with this index */
){
int j = 0;
/* memset(pScan, 0, sizeof(*pScan)); */
pScan->pOrigWC = pWC;
pScan->pWC = pWC;
pScan->pIdxExpr = 0;
pScan->idxaff = 0;
pScan->zCollName = 0;
if( pIdx ){
j = iColumn;
int j = iColumn;
iColumn = pIdx->aiColumn[j];
if( iColumn==XN_EXPR ) pScan->pIdxExpr = pIdx->aColExpr->a[j].pExpr;
if( iColumn==pIdx->pTable->iPKey ) iColumn = XN_ROWID;
}
if( pIdx && iColumn>=0 ){
pScan->idxaff = pIdx->pTable->aCol[iColumn].affinity;
pScan->zCollName = pIdx->azColl[j];
}else{
pScan->idxaff = 0;
pScan->zCollName = 0;
if( iColumn==XN_EXPR ){
pScan->pIdxExpr = pIdx->aColExpr->a[j].pExpr;
}else if( iColumn==pIdx->pTable->iPKey ){
iColumn = XN_ROWID;
}else if( iColumn>=0 ){
pScan->idxaff = pIdx->pTable->aCol[iColumn].affinity;
pScan->zCollName = pIdx->azColl[j];
}
}else if( iColumn==XN_EXPR ){
return 0;
}
pScan->opMask = opMask;
pScan->k = 0;