database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-12 23:22:53 +03:00
Code Activity

Better optimize queries that use parameters in the LIMIT clause.

Browse Source 
FossilOrigin-Name: e58cb304d1e0ec6e30260a165aaccc2cf096ce6c999efb06683c4ef600ee12ef
This commit is contained in:
drh
2024-06-06 15:03:16 +00:00
parent 404ddadbd4
commit 4703b7d092
12 changed files with 156 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/resolve.c
View File

@@ -1505,7 +1505,7 @@ static int resolveOrderByTermToExprList(
int rc; /* Return code from subprocedures */
u8 savedSuppErr; /* Saved value of db->suppressErr */
assert( sqlite3ExprIsInteger(pE, &i)==0 );
assert( sqlite3ExprIsInteger(pE, &i, 0)==0 );
pEList = pSelect->pEList;
/* Resolve all names in the ORDER BY term expression
@@ -1604,7 +1604,7 @@ static int resolveCompoundOrderBy(
if( pItem->fg.done ) continue;
pE = sqlite3ExprSkipCollateAndLikely(pItem->pExpr);
if( NEVER(pE==0) ) continue;
if( sqlite3ExprIsInteger(pE, &iCol) ){
if( sqlite3ExprIsInteger(pE, &iCol, 0) ){
if( iCol<=0 || iCol>pEList->nExpr ){
resolveOutOfRangeError(pParse, "ORDER", i+1, pEList->nExpr, pE);
return 1;
@@ -1789,7 +1789,7 @@ static int resolveOrderGroupBy(
continue;
}
}
if( sqlite3ExprIsInteger(pE2, &iCol) ){
if( sqlite3ExprIsInteger(pE2, &iCol, 0) ){
/* The ORDER BY term is an integer constant. Again, set the column
** number so that sqlite3ResolveOrderGroupBy() will convert the
** order-by term to a copy of the result-set expression */