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HBase, mail # user - filtering rows for column values not null

Ted 2013-10-24, 08:54
Jean-Marc Spaggiari 2013-10-24, 13:23
Toby Lazar 2013-10-24, 13:26
Jean-Marc Spaggiari 2013-10-24, 13:31
Ted 2013-10-25, 00:53
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RE: filtering rows for column values not null
Vladimir Rodionov 2013-10-24, 16:07
If 'firstName' is NULL - it is missing completely from a row. Add explicitly this column to Scan you create:

scan.addColumn(YOUR_CF, 'firstName'.getBytes());

Best regards,
Vladimir Rodionov
Principal Platform Engineer
Carrier IQ, www.carrieriq.com

Sent: Thursday, October 24, 2013 1:54 AM
Subject: filtering rows for column values not null

Hi I have a relatively simple situation,

As an example I have a table of Users, with first and last name.

I set a scan a FilterList and I add a SingleColumnValueFilter, with
column qualifier=firstName, CompareOp.EQUAL, and value="bob".

The problem is, I'm getting "bob" as well as anyone with out a firstName.

I tried adding NOT_EQUALS null and NOT_EQUALS (new byte[0]) and neither helped.

Does anyone know of how to filter on a column value not null?

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Jean-Marc Spaggiari 2013-10-24, 16:38
Vladimir Rodionov 2013-10-24, 16:35