Hoss Man created SOLR-5231:
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Summary: When a boolean field is missing from a doc it is
sometimes treated as "true" by the "if" function (based on other docs in
segment?)
Key: SOLR-5231
URL: https://issues.apache.org/jira/browse/SOLR-5231
Project: Solr
Issue Type: Bug
Affects Versions: 4.4
Reporter: Hoss Man
This issue is hard to explain with out a long example.
crux of the problem is that the behavior of the if function, wrapped arround a
boolean field (ie: "{{if(fieldName,x,y)}}" ) is not consistent for documents
that do not have any value for that functio -- the behavior seems to depend on
whether or not other documents in the same segment have a value for that field.
for brevity, details will follow in a comment - but i've been able to reproduce
on trunk, 4.3, and 4.3 (didn't look back farther then that)
the work around is to explicitly use the {{exists()}} function in the if
condition (ie: "{{if(exists(fieldName),x,y)}}" )
(Thanks to Elodie Sannier for reporting the initial symptoms of this on the
mailing list)
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