MEM_AggCtx       4459 ext/sqlite/libsqlite/src/vdbe.c   pMem->flags = MEM_AggCtx;
MEM_AggCtx       4548 ext/sqlite/libsqlite/src/vdbe.c   if( pTos->flags & MEM_AggCtx ){
MEM_AggCtx        686 ext/sqlite/libsqlite/src/vdbeaux.c       if( pAgg->apFunc[i] && (pMem->flags & MEM_AggCtx)!=0 ){