OP_DropIndex     2760 ext/pdo_sqlite/sqlite/src/build.c     sqlite3VdbeOp3(v, OP_DropIndex, iDb, 0, pIndex->zName, 0);
OP_DropIndex     4136 ext/pdo_sqlite/sqlite/src/vdbe.c case OP_DropIndex: {        /* no-push */