xBestIndex       5701 ext/sqlite3/libsqlite/sqlite3.c   int (*xBestIndex)(sqlite3_vtab *pVTab, sqlite3_index_info*);
xBestIndex       118175 ext/sqlite3/libsqlite/sqlite3.c   rc = pVtab->pModule->xBestIndex(pVtab, p);
xBestIndex       5494 ext/sqlite3/libsqlite/sqlite3.h   int (*xBestIndex)(sqlite3_vtab *pVTab, sqlite3_index_info*);