问题描述
任何人都可以告诉我如何从hbase shell命令行执行限定符过滤器或ValueFilter？
Could anyone please tell me how to do a qualifier filter or ValueFilter from the hbase shell command line?
推荐答案
以与在Java中使用相同的方式实例化任何过滤器（使用JRuby语法），并提供过滤器：
You can instantiate any filter the same way you would do in Java (with JRuby syntax), and supply the filter as:
filter = ...
scan 'mytable', FILTER => filter
然而，直接在shell中实例化过滤器会很麻烦，所以更简单的方法是提供使用过滤器语言过滤为字符串。例如，要在扫描中包含所有值等于'myvalue'的列，您可以使用：
However, instantiating the filter in the shell directly can be cumbersome, so an easier way is to supply filter as a string using Filter Language. For example, to include all the columns with value equal to 'myvalue' in a scan you would use:
scan 'mytable', FILTER => "ValueFilter(=, 'binary:myvalue')
您可以检查作为过滤语言参考。
You can check this document as a 'Filter Language' reference.
这篇关于在hbase shell上执行ValueFilter或ColumnFilter的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！