nExtraCol        93661 ext/sqlite3/libsqlite/sqlite3.c   int nExtraCol;                   /* Number of extra columns needed */
nExtraCol        93836 ext/sqlite3/libsqlite/sqlite3.c   nExtraCol = pPk ? pPk->nKeyCol : 1;
nExtraCol        93837 ext/sqlite3/libsqlite/sqlite3.c   pIndex = sqlite3AllocateIndexObject(db, pList->nExpr + nExtraCol,