Well that's bizarre; it's missing from mine, and when I attempt that call I get a timeout.... wonder if my SWQL Studio version is behind...
This is from 1.7:
Source entity [Orion.NPM.CustomPollerLabels] not found in catalog.
2013-08-23 14:31:13,801 [92] ERROR SolarWinds.InformationService.Core.InformationService - Exception running query:
SELECT CustomPollerAssignmentID, RowID, Label FROM Orion.NPM.CustomPollerLabels RETURN XML RAW
2013-08-23 14:31:13,801 [92] ERROR SolarWinds.InformationService.Core.InformationService - Exception for Operation: <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<s:Header>
<a:Action s:mustUnderstand="1">http://schemas.solarwinds.com/2007/08/informationservice/InformationService/QueryXml</a:Action>
<a:MessageID>urn:uuid:d309d423-d02f-4f7f-9919-f5ae953e3960</a:MessageID>
<a:ReplyTo>
<a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
</a:ReplyTo>
<i18n xmlns="http://schemas.solarwinds.com/2007/08/informationservice" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<Culture>en-US</Culture>
</i18n>
<a:To s:mustUnderstand="1">net.tcp://127.0.0.1:17777/SolarWinds/InformationService/v3/Orion/ssl</a:To>
<o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<u:Timestamp u:Id="_0">
<u:Created>2013-08-23T18:31:13.645Z</u:Created>
<u:Expires>2013-08-23T18:36:13.645Z</u:Expires>
</u:Timestamp>