database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-08 14:02:16 +03:00
Code Activity

Minor performance improvements.

Browse Source 
FossilOrigin-Name: f9950c6af1813f724dacd7455f472acec921b06a
This commit is contained in:
drh
2011-05-30 23:42:16 +00:00
parent f4b595b929
commit c3f1d5f095
5 changed files with 30 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
src/vdbe.c
View File

@@ -1766,7 +1766,7 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
pIn3 = &aMem[pOp->p3];
flags1 = pIn1->flags;
flags3 = pIn3->flags;
if( (pIn1->flags | pIn3->flags)&MEM_Null ){
if( (flags1 | flags3)&MEM_Null ){
/* One or both operands are NULL */
if( pOp->p5 & SQLITE_NULLEQ ){
/* If SQLITE_NULLEQ is set (which will only happen if the operator is
@@ -1774,7 +1774,7 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
** or not both operands are null.
*/
assert( pOp->opcode==OP_Eq || pOp->opcode==OP_Ne );
res = (pIn1->flags & pIn3->flags & MEM_Null)==0;
res = (flags1 & flags3 & MEM_Null)==0;
}else{
/* SQLITE_NULLEQ is clear and at least one operand is NULL,
** then the result is always NULL.
@@ -5882,20 +5882,20 @@ case OP_MaxPgcnt: { /* out2-prerelease */
*/
case OP_Trace: {
char *zTrace;
char *z;
zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql);
if( zTrace ){
if( db->xTrace ){
char *z = sqlite3VdbeExpandSql(p, zTrace);
db->xTrace(db->pTraceArg, z);
sqlite3DbFree(db, z);
}
#ifdef SQLITE_DEBUG
if( (db->flags & SQLITE_SqlTrace)!=0 ){
sqlite3DebugPrintf("SQL-trace: %s\n", zTrace);
}
#endif /* SQLITE_DEBUG */
if( db->xTrace && (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0 ){
z = sqlite3VdbeExpandSql(p, zTrace);
db->xTrace(db->pTraceArg, z);
sqlite3DbFree(db, z);
}
#ifdef SQLITE_DEBUG
if( (db->flags & SQLITE_SqlTrace)!=0
&& (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
){
sqlite3DebugPrintf("SQL-trace: %s\n", zTrace);
}
#endif /* SQLITE_DEBUG */
break;
}
#endif