diff options
Diffstat (limited to 'src/expr.c')
| -rw-r--r-- | src/expr.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/expr.c b/src/expr.c index 4e8703e55..67b5ce7dc 100644 --- a/src/expr.c +++ b/src/expr.c @@ -5183,8 +5183,9 @@ int sqlite3ExprCompare(Parse *pParse, Expr *pA, Expr *pB, int iTab){ } /* -** Compare two ExprList objects. Return 0 if they are identical and -** non-zero if they differ in any way. +** Compare two ExprList objects. Return 0 if they are identical, 1 +** if they are certainly different, or 2 if it is not possible to +** determine if they are identical or not. ** ** If any subelement of pB has Expr.iTable==(-1) then it is allowed ** to compare equal to an equivalent element in pA with Expr.iTable==iTab. @@ -5203,10 +5204,11 @@ int sqlite3ExprListCompare(ExprList *pA, ExprList *pB, int iTab){ if( pA==0 || pB==0 ) return 1; if( pA->nExpr!=pB->nExpr ) return 1; for(i=0; i<pA->nExpr; i++){ + int res; Expr *pExprA = pA->a[i].pExpr; Expr *pExprB = pB->a[i].pExpr; if( pA->a[i].sortFlags!=pB->a[i].sortFlags ) return 1; - if( sqlite3ExprCompare(0, pExprA, pExprB, iTab) ) return 1; + if( (res = sqlite3ExprCompare(0, pExprA, pExprB, iTab)) ) return res; } return 0; } |