Shell SingleColumnValueFilter未正确筛选表

我的Hbase表中有这段数据

put 't2','submission|007|313|assignment|1','SUBMISSION:sdate','04-APR-2011'
put 't2','submission|007|313|assignment|1','SUBMISSION:esignature','lh'
put 't2','submission|007|313|assignment|1','SUBMISSION:totalfiles','2'
put 't2','submission|007|313|assignment|1','SUBMISSION:dayslate','0'
put 't2','submission|007|313|assignment|1','SUBMISSION:type','assignment'
put 't2','submission|007|313|assignment|1','SUBMISSION:tnumber','2'
put 't2','submission|007|313|assignment|1','STUDENT:snumber','007'
put 't2','submission|007|313|assignment|1','SUBJECT:code','313'
put 't2','submission|007|313|assignment|1','FILES:fnumber1','path/file-name3-1'


put 't2','submission|666|312|assignment|1','SUBMISSION:sdate','05-APR-2011'
put 't2','submission|666|312|assignment|1','SUBMISSION:esignature','hp'
put 't2','submission|666|312|assignment|1','SUBMISSION:totalfiles','2'
put 't2','submission|666|312|assignment|1','SUBMISSION:dayslate','0'
put 't2','submission|666|312|assignment|1','SUBMISSION:type','assignment'
put 't2','submission|666|312|assignment|1','SUBMISSION:tnumber','1'
put 't2','submission|666|312|assignment|1','STUDENT:snumber','666'
put 't2','submission|666|312|assignment|1','SUBJECT:code','312'
put 't2','submission|666|312|assignment|1','FILES:fnumber1','path/file-name1-1'
put 't2','submission|666|312|assignment|1','FILES:fnumber2','path/file-name1-1'

我在这里试图实现的是获得所有提交条目的

主题：code

，其中

学生：snumber

为

666

我尝试了

RowFilter

和

ValueFilter

，但都没有返回数据

我最近的一次尝试是使用

SingleColumnValueFilter

，这应该可以解决我的问题，但无论如何

SingleColumnValueFilter

根本无法过滤！这是Hbase外壳：

scan 't2', {COLUMN=>'SUBJECT:code', FILTER => "SingleColumnValueFilter('STUDENT','snumber',=,'binary:666')"}

当我运行上述命令时，它返回：

 submission|007|313|assignment|1                     column=SUBJECT:code, timestamp=1622478374359, value=313                                                                                                                                                                                          
 submission|666|312|assignment|1                     column=SUBJECT:code, timestamp=1622478377064, value=312   

我想要的结果应该是

 submission|666|312|assignment|1                     column=SUBJECT:code, timestamp=1622478377064, value=312   

我不明白为什么

SingleColumnValueFilter

不工作。我错过了什么