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https://issues.apache.org/jira/browse/SOLR-15048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris M. Hostetter updated SOLR-15048:
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Description:
while working on SOLR-15047, I realized I wasn't really clear on what the
_expected_ semantics of were suppose to be when "boosting"
docs that had null values in the collapse field.
I expanded on my test from that jira, to demonstrate the logic i (thought) i
understood from the Ord based collector - but then discovered that depending on
the group head selector used (ie: OrdScoreCollector vs
OrdFieldValueCollector+OrdIntStrategy vs
OrdFieldValueCollector+OrdValueSourceStrategy , etc...) you get different
behavior - not just in what group head is selected, but even when the behavior
should be functionally equivilent, you can get different sets of groups. (even
for simple string field collapsing, independent of the bugs in numeric field
collapsing).
I have not dug into WTF is happening here, but I'll attach my WIP test
was:
while working on SOLR-15047, I realized I wasn't really clear on what the
_expected_ semantics of were suppose to be when "boosting"
docs that had null values in the collapse field.
I expanded on my test from that jira, to demonstrate the logic i (thought) i
understood from the Ord based collector - but then discovered that depending on
the group head selector used (ie: OrdScoreCollector vs
OrdFieldValueCollector+OrdIntStrategy vs
OrdFieldValueCollector+OrdValueSourceStrategy , etc...) you get different
behavior - not just in what group head is selected, but even when the behavior
should be functionally equivilent, you can get different sets of groups.
I have not dug into WTF is happening here, but I'll attach my WIP test
> collapse + query elevation behaves inconsistenty w/ 'null group' docs
> depending on group head selector
> ------------------------------------------------------------------------------------------------------
>
> Key: SOLR-15048
> URL: https://issues.apache.org/jira/browse/SOLR-15048
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Chris M. Hostetter
> Assignee: Chris M. Hostetter
> Priority: Major
> Attachments: SOLR-15048.patch
>
>
> while working on SOLR-15047, I realized I wasn't really clear on what the
> _expected_ semantics of were suppose to be when "boosting"
> docs that had null values in the collapse field.
> I expanded on my test from that jira, to demonstrate the logic i (thought) i
> understood from the Ord based collector - but then discovered that depending
> on the group head selector used (ie: OrdScoreCollector vs
> OrdFieldValueCollector+OrdIntStrategy vs
> OrdFieldValueCollector+OrdValueSourceStrategy , etc...) you get different
> behavior - not just in what group head is selected, but even when the
> behavior should be functionally equivilent, you can get different sets of
> groups. (even for simple string field collapsing, independent of the bugs in
> numeric field collapsing).
>
> I have not dug into WTF is happening here, but I'll attach my WIP test
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