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From "Robert Muir (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-3145) Velocity /browse GUI should stick to AND as defaultOperator
Date Tue, 13 Mar 2012 13:43:39 GMT


Robert Muir commented on SOLR-3145:

Feel free to open new JIRAs for the other shortcomings you mentioned, like better Similarity
defaults - I'm a big fan of that as well!

The problem is 4.x must still be able to read 3.x indexes and return good results, but 3.x
indexes don't have the statistics we need
to e.g. default to BM25 or something else. So I was hoping to bring this up for 5.0, it seems
for 4.0 we should take the conservative
approach and keep what we have: so that any migrating users don't have bad performance (yes
all those Sims will work in degraded mode
for preflex indexes but i don't like that).
> Velocity /browse GUI should stick to AND as defaultOperator
> -----------------------------------------------------------
>                 Key: SOLR-3145
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>          Components: web gui
>    Affects Versions: 4.0
>            Reporter: Jan Høydahl
>            Assignee: Jan Høydahl
>             Fix For: 4.0
> After SOLR-1889 was committed, the DisMax "mm" parameter defaults to whatever set in
q.op. Since defaultOperator in schema.xml is OR, this means that DisMax now defaults to OR
(mm=0) instead of the old default (mm=100%). It should stick to AND as before.

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