sqlite3VdbeDeletePriorOpcode 9998 ext/sqlite3/libsqlite/sqlite3.c SQLITE_PRIVATE int sqlite3VdbeDeletePriorOpcode(Vdbe*, u8 op);
sqlite3VdbeDeletePriorOpcode 90961 ext/sqlite3/libsqlite/sqlite3.c     while( sqlite3VdbeDeletePriorOpcode(v, OP_Close) ){}
sqlite3VdbeDeletePriorOpcode 96404 ext/sqlite3/libsqlite/sqlite3.c     sqlite3VdbeDeletePriorOpcode(v, OP_RealAffinity);