sqlite3WalBeginReadTransaction 36756 ext/sqlite3/libsqlite/sqlite3.c SQLITE_PRIVATE int sqlite3WalBeginReadTransaction(Wal *pWal, int *);
sqlite3WalBeginReadTransaction 39826 ext/sqlite3/libsqlite/sqlite3.c   rc = sqlite3WalBeginReadTransaction(pPager->pWal, &changed);