4237   SrcList *pSubSrc;   /* The FROM clause of the subquery */  in flattenSubquery()  local
4264   pSubSrc = pSub->pSrc;  in flattenSubquery()
4265   assert( pSubSrc );  in flattenSubquery()
4276   if( pSubSrc->nSrc==0 ) return 0;                       /* Restriction (7)  */  in flattenSubquery()
4309     if( pSubSrc->nSrc>1                        /* (3a) */  in flattenSubquery()
4310      || IsVirtual(pSubSrc->a[0].pTab)          /* (3b) */  in flattenSubquery()
4319   assert( pSubSrc->nSrc>0 );  /* True by restriction (7) */  in flattenSubquery()
4320   if( iFrom>0 && (pSubSrc->a[0].fg.jointype & JT_LTORJ)!=0 ){  in flattenSubquery()
4528     pSubSrc = pSub->pSrc;     /* FROM clause of subquery */  in flattenSubquery()
4529     nSubSrc = pSubSrc->nSrc;  /* Number of terms in subquery FROM clause */  in flattenSubquery()
4564       *pItem = pSubSrc->a[i];  in flattenSubquery()
4566       iNewParent = pSubSrc->a[i].iCursor;  in flattenSubquery()
4567       memset(&pSubSrc->a[i], 0, sizeof(pSubSrc->a[i]));  in flattenSubquery()