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Very slightly smaller and faster sqlite3WalkSelect().

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FossilOrigin-Name: 9bc65635b29a4991c7821ef0939975d007f9ac23716717699353ef3246e27791
This commit is contained in:
drh
2017-07-07 11:49:48 +00:00
parent 0db5bfe5de
commit 3da70a6112
3 changed files with 10 additions and 9 deletions
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5
src/walker.c
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@@ -104,7 +104,7 @@ int sqlite3WalkSelectFrom(Walker *pWalker, Select *p){
pSrc = p->pSrc;
if( ALWAYS(pSrc) ){
for(i=pSrc->nSrc, pItem=pSrc->a; i>0; i--, pItem++){
if( sqlite3WalkSelect(pWalker, pItem->pSelect) ){
if( pItem->pSelect && sqlite3WalkSelect(pWalker, pItem->pSelect) ){
return WRC_Abort;
}
if( pItem->fg.isTabFunc
@@ -136,7 +136,8 @@ int sqlite3WalkSelectFrom(Walker *pWalker, Select *p){
*/
int sqlite3WalkSelect(Walker *pWalker, Select *p){
int rc;
if( p==0 || pWalker->xSelectCallback==0 ) return WRC_Continue;
if( p==0 ) return WRC_Continue;
if( pWalker->xSelectCallback==0 ) return WRC_Continue;
do{
rc = pWalker->xSelectCallback(pWalker, p);
if( rc ) return rc & WRC_Abort;