Android，如何检查房间DB中是否已经存在column？

implementation "androidx.room:room-runtime:2.4.0"
annotationProcessor "androidx.room:room-compiler:2.4.0"

@Entity(tableName = "your_table_name")
public class YourEntity {
    @PrimaryKey
    public int id;

    @ColumnInfo(name = "your_column_name")
    public String yourColumn;
}

@Database(entities = {YourEntity.class}, version = 1)
public abstract class YourDatabase extends RoomDatabase {
    public abstract YourDao yourDao();
}

@Dao
public interface YourDao {
    @RawQuery(observedEntities = YourEntity.class)
    boolean isColumnExists(SupportSQLiteQuery query);
}

YourDatabase database = Room.databaseBuilder(context, YourDatabase.class, "your_database_name")
        .build();
YourDao dao = database.yourDao();

// 创建一个查询语句，用于检查列是否存在
SimpleSQLiteQuery query = new SimpleSQLiteQuery("PRAGMA table_info(your_table_name)");
boolean columnExists = dao.isColumnExists(query);

if (columnExists) {
    // 列存在
} else {
    // 列不存在
}