database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-14 00:22:38 +03:00
Code Activity

rework the VDBE engine. NULL is now distinct from "" (CVS 49)

Browse Source 
FossilOrigin-Name: 6ea5cebf05562de00d2cf0b9e2aac5f3857638ee
This commit is contained in:
drh
2000-06-04 12:58:36 +00:00
parent 32aa77ed6e
commit c61053b771
11 changed files with 568 additions and 341 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/select.c
View File

@@ -24,7 +24,7 @@
** This file contains C code routines that are called by the parser
** to handle SELECT statements.
**
** $Id: select.c,v 1.5 2000/06/03 18:06:53 drh Exp $
** $Id: select.c,v 1.6 2000/06/04 12:58:38 drh Exp $
*/
#include "sqliteInt.h"
@@ -183,7 +183,7 @@ void sqliteSelect(
switch( sqliteFuncId(&p->token) ){
case FN_Min:
case FN_Max: {
sqliteVdbeAddOp(v, OP_String, 0, 0, "", 0);
sqliteVdbeAddOp(v, OP_Null, 0, 0, 0, 0);
break;
}
default: {
@@ -251,6 +251,7 @@ void sqliteSelect(
}
if( id!=FN_Count && p->pList && p->pList->nExpr>=1 ){
sqliteExprCode(pParse, p->pList->a[0].pExpr);
sqliteVdbeAddOp(v, OP_Concat, 1, 0, 0, 0);
}
switch( sqliteFuncId(&p->token) ){
case FN_Count: op = OP_AddImm; p1 = 1; break;