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Add the SQLITE_DBCONFIG_ENABLE_QPSG option to activate the query planner

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stability guarantee.  This involves refactoring the sqlite3.flags bitvector
to carve out a free bit to use.

FossilOrigin-Name: 7076e8283ebae1b45a5d85d9538b49b6da399d38c3c6935de100f948f814f6a9
This commit is contained in:
drh
2017-06-26 13:57:49 +00:00
parent a22dd3860a
commit 169dd928c5
15 changed files with 160 additions and 65 deletions
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2
src/vdbeaux.c
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@@ -4540,7 +4540,7 @@ sqlite3 *sqlite3VdbeDb(Vdbe *v){
*/
sqlite3_value *sqlite3VdbeGetBoundValue(Vdbe *v, int iVar, u8 aff){
assert( iVar>0 );
if( v ){
if( v && (v->db->flags & SQLITE_EnableQPSG)==0 ){
Mem *pMem = &v->aVar[iVar-1];
if( 0==(pMem->flags & MEM_Null) ){
sqlite3_value *pRet = sqlite3ValueNew(v->db);