Hi Alok,
xyz$ regex is enough to get the desired result. It will perform better
than ^.*xyz$. ^.*xyz$ is doing some unnecessary work.
Thanks,
Anil Gupta
On Wed, Feb 11, 2015 at 10:44 AM, Alok Singh aloksi...@gmail.com wrote:
A simple String suffix check will be definitely faster, but I doubt
A simple String suffix check will be definitely faster, but I doubt
you will notice the difference as most of the time will be spent
loading every column of every row to do the check.
Just for the fun of it, I did a quick comparison of regex ^.*xyz$
with String.endsWith(xyz): regex is about ~10x
Hi,
I want to get all the columns of a row that ends with xyz. I know there
is ColumnPrefixFilter. Is there any other column filter in HBase that can
help me simulate feature of suffix matching?
In my opinion, ColumnSuffixFilter would be a good addition to Filters of
HBase.
--
Thanks Regards,
Regex are more expensive that basic filters for sure. But it's a simple
solution. You can implement a ColumnSuffixFilter. If you keys are always
the same length, you can look at this:
https://hbase.apache.org/0.94/apidocs/org/apache/hadoop/hbase/filter/FuzzyRowFilter.html
JM
2015-02-11 0:44
Oh, you're right? I read the question too quickly and skipped the column
information... FuzzyRowFilter is only for the key.
2015-02-11 0:53 GMT-05:00 Alok Singh aloksi...@gmail.com:
Doesn't the FuzzyRowFilter only work on rowkeys? Not sure how it would
apply to column qualifiers.
Alok
On
You could use a QualifierFilter with a RegexStringComparator to do the same.
Alok
On Tue, Feb 10, 2015 at 7:23 PM, anil gupta anilgupt...@gmail.com wrote:
Hi,
I want to get all the columns of a row that ends with xyz. I know there
is ColumnPrefixFilter. Is there any other column filter in
Completely missed out on QualifierFilter. Thanks Alok.
Since QualifierFilter is going to use regex. I would say that
QualifierFilter wont be super efficient. At present, i want to do this
quickly.
In near future, if time permits, i will try to write ColumnSuffixFilter and
use it.
An observation
Will there be any performance issues ? i'm curious if there's an efficient
way of implement such kind of filer.
On Wed, Feb 11, 2015 at 1:39 PM, Alok Singh aloksi...@gmail.com wrote:
You could use a QualifierFilter with a RegexStringComparator to do the
same.
Alok
On Tue, Feb 10, 2015 at
Doesn't the FuzzyRowFilter only work on rowkeys? Not sure how it would
apply to column qualifiers.
Alok
On Tue, Feb 10, 2015 at 9:48 PM, Jean-Marc Spaggiari
jean-m...@spaggiari.org wrote:
Regex are more expensive that basic filters for sure. But it's a simple
solution. You can implement a
