OP_IsNull        1729 ext/pdo_sqlite/sqlite/src/expr.c       assert( TK_ISNULL==OP_IsNull );
OP_IsNull        2041 ext/pdo_sqlite/sqlite/src/expr.c       assert( TK_ISNULL==OP_IsNull );
OP_IsNull        2117 ext/pdo_sqlite/sqlite/src/expr.c   assert( pExpr->op!=TK_NOTNULL || op==OP_IsNull );
OP_IsNull         764 ext/pdo_sqlite/sqlite/src/pragma.c       addr = sqlite3VdbeAddOp(v, OP_IsNull, -1, 0);
OP_IsNull        1837 ext/pdo_sqlite/sqlite/src/vdbe.c case OP_IsNull: {            /* same as TK_ISNULL, no-push */
OP_IsNull        1731 ext/pdo_sqlite/sqlite/src/where.c       sqlite3VdbeAddOp(v, OP_IsNull, -1, 0);
OP_IsNull        1798 ext/pdo_sqlite/sqlite/src/where.c       sqlite3VdbeAddOp(v, OP_IsNull, termsInMem ? -1 : -(j+1), pLevel->brk);
OP_IsNull        2415 ext/pdo_sqlite/sqlite/src/where.c         sqlite3VdbeAddOp(v, OP_IsNull, -(nEq+1), nxt);
OP_IsNull        2454 ext/pdo_sqlite/sqlite/src/where.c         sqlite3VdbeAddOp(v, OP_IsNull, -(nEq+1), nxt);
OP_IsNull        2491 ext/pdo_sqlite/sqlite/src/where.c         sqlite3VdbeAddOp(v, OP_IsNull, 1, cont);
OP_IsNull        1028 ext/sqlite/libsqlite/src/expr.c     case TK_ISNULL:   op = OP_IsNull;   break;
OP_IsNull        1311 ext/sqlite/libsqlite/src/expr.c     case TK_ISNULL:   op = OP_IsNull;   break;
OP_IsNull        1407 ext/sqlite/libsqlite/src/expr.c     case TK_NOTNULL:  op = OP_IsNull;   break;
OP_IsNull         447 ext/sqlite/libsqlite/src/select.c     sqliteVdbeAddOp(v, OP_IsNull, -pEList->nExpr, sqliteVdbeCurrentAddr(v)+7);
OP_IsNull        1778 ext/sqlite/libsqlite/src/vdbe.c case OP_IsNull: {