I am using sqlite3_deserialize to open an embedded database in a file. The function itself returns successfully, but subsequent uses of the function (i.e. sqlite3_get_table) fail with 'unable to open database file'.

I'm a bit at a loss why it's giving this error if the deserialization was a success.

Roughly the code looks like: ``` sqlite3 *db;
int rc = sqlite3_open(":memory:", &db);

if (rc != SQLITE_OK) {
    printf("Cannot open database: %s\n", sqlite3_errmsg(db));
    exit(1);
}

rc = sqlite3_deserialize(db, "main", data, size, size,
                            SQLITE_DESERIALIZE_READONLY | SQLITE_DESERIALIZE_RESIZEABLE);
if (rc != SQLITE_OK) {
    printf("Cannot deserialize database: %s\n", sqlite3_errmsg(db));
    exit(1);
}

char * sql = "SELECT COUNT(*) FROM ELF_SYMBOLS";
int rows, columns;
char **result;

rc = sqlite3_get_table(db, sql, &result, &rows, &columns, NULL);
if (rc != SQLITE_OK) {
    printf("Failed to execute query[%d]: %s\n", rc, sqlite3_errmsg(db));
    exit(1);
}
printf("Number of rows in table: %s\n", result[columns]);

```

Appreciate any advice to debug.