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From Ashwin Jain <ashvyn.j...@gmail.com>
Subject Re: HBase Negation or NOT operator
Date Wed, 18 Sep 2013 06:11:56 GMT
Thanks Vladimir.  Jean-Daniel my use-case is very similar to Phoenix. We
have our own small search query syntax to which I have to write a converter
to both SOLR and HBase. You are right about scaling. I am new to HBase and
starting with filter implementation. We also want to have a MapReduce later.


On Tue, Sep 17, 2013 at 9:38 PM, Vladimir Rodionov

> https://github.com/forcedotcom/phoenix to your help. It is worth taking a
> look at least.
> Best regards,
> Vladimir Rodionov
> Principal Platform Engineer
> Carrier IQ, www.carrieriq.com
> e-mail: vrodionov@carrieriq.com
> ________________________________________
> From: Ashwin Jain [ashvyn.jain@gmail.com]
> Sent: Tuesday, September 17, 2013 1:34 AM
> To: user@hbase.apache.org
> Subject: HBase Negation or NOT operator
> Hello All,
> Does HBase not support an SQL NOT operator on complex filters? I would like
> to filter out whatever matches a complex nested filter.
> my use case is to parse a query like this(below) and build a HBase filter
> from it.
> (field1=value1 AND NOT ((field2=value2 OR field3=value3) AND
> field4=value4))
> How to go about this , any ideas?  What will be a better approach -
> implement a custom filter that excludes a row qualified by another filter
> or to convert input query into an opposite query.
> Thanks,
> Ashwin
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