diff options
Diffstat (limited to 'src/select.c')
| -rw-r--r-- | src/select.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/select.c b/src/select.c index 226a6635d..84060cf34 100644 --- a/src/select.c +++ b/src/select.c @@ -2362,7 +2362,7 @@ static CollSeq *multiSelectCollSeq(Parse *pParse, Select *p, int iCol){ */ static KeyInfo *multiSelectOrderByKeyInfo(Parse *pParse, Select *p, int nExtra){ ExprList *pOrderBy = p->pOrderBy; - int nOrderBy = p->pOrderBy->nExpr; + int nOrderBy = ALWAYS(pOrderBy!=0) ? pOrderBy->nExpr : 0; sqlite3 *db = pParse->db; KeyInfo *pRet = sqlite3KeyInfoAlloc(db, nOrderBy+nExtra, 1); if( pRet ){ @@ -3335,6 +3335,7 @@ static int multiSelectOrderBy( for(i=1; db->mallocFailed==0 && i<=p->pEList->nExpr; i++){ struct ExprList_item *pItem; for(j=0, pItem=pOrderBy->a; j<nOrderBy; j++, pItem++){ + assert( pItem!=0 ); assert( pItem->u.x.iOrderByCol>0 ); if( pItem->u.x.iOrderByCol==i ) break; } @@ -3361,6 +3362,7 @@ static int multiSelectOrderBy( struct ExprList_item *pItem; aPermute[0] = nOrderBy; for(i=1, pItem=pOrderBy->a; i<=nOrderBy; i++, pItem++){ + assert( pItem!=0 ); assert( pItem->u.x.iOrderByCol>0 ); assert( pItem->u.x.iOrderByCol<=p->pEList->nExpr ); aPermute[i] = pItem->u.x.iOrderByCol - 1; |