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Trivial performance improvement for balance().

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FossilOrigin-Name: c7920f5569022f645ec4dbfce8c228880263785c708c2c0ac065e770c438b1d9
This commit is contained in:
dan
2019-07-13 09:55:33 +00:00
parent 52d9a3c213
commit 01fd42beef
3 changed files with 11 additions and 11 deletions
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8
src/btree.c
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@@ -8307,11 +8307,13 @@ static int balance(BtCursor *pCur){
VVA_ONLY( int balance_deeper_called = 0 );
do {
int iPage = pCur->iPage;
int iPage;
MemPage *pPage = pCur->pPage;
if( NEVER(pPage->nFree<0) && btreeComputeFreeSpace(pPage) ) break;
if( iPage==0 ){
if( pPage->nOverflow==0 && pPage->nFree<=nMin ){
break;
}else if( (iPage = pCur->iPage)==0 ){
if( pPage->nOverflow ){
/* The root page of the b-tree is overfull. In this case call the
** balance_deeper() function to create a new child for the root-page
@@ -8332,8 +8334,6 @@ static int balance(BtCursor *pCur){
}else{
break;
}
}else if( pPage->nOverflow==0 && pPage->nFree<=nMin ){
break;
}else{
MemPage * const pParent = pCur->apPage[iPage-1];
int const iIdx = pCur->aiIdx[iPage-1];