lib/sqlite/sqlite3.c

83765     int iRowSet = ++pParse->nMem;   /* Register for rowset of rows to delete */
83771     sqlite3VdbeAddOp2(v, OP_Null, 0, iRowSet);
83777     sqlite3VdbeAddOp2(v, OP_RowSetAdd, iRowSet, regRowid);
83796     addr = sqlite3VdbeAddOp3(v, OP_RowSetRead, iRowSet, end, iRowid);