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https://issues.apache.org/jira/browse/SOLR-3191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13221533#comment-13221533
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Jan Høydahl commented on SOLR-3191:
-----------------------------------
I think by definition a field name cannot start with "-" since even the Lucene
query syntax must support the alternative NOT syntax {{-inStock:true}}. I
therefore think we should borrow this syntax over here, just as we are doing
for dismax {{uf}} in SOLR-3026. It should be easy enough to parse.
Examples:
{noformat}
q=foo&fl=-title # All fields except title (include * is implicit)
q=foo&fl=-title,-body # All fields except title and body
q=foo&fl=-*_s # All fields except those matching *_s pattern
q=foo&fl=foo,-bar # Would be the same as saying only &fl=foo, since an
explicit field resets the list
q=foo&fl=-bar,foo # same as above. Order not important?
q=foo&fl=-foo,foo # same as above. Probably all the exclude fields
should be parsed last and override positive?
q=foo&fl=*,-title # same as only -title as * is implicit include when
only exclude fields listed?
q=foo&fl=-* # Hmm, makes no sense, if you're not returning
anything you should ask for rows=0 ??
q=foo&fl=*z,-*xyz # Include all fields ending in "z" except those
ending in "xyz", negative rule applied last
{noformat}
> field exclusion from fl
> -----------------------
>
> Key: SOLR-3191
> URL: https://issues.apache.org/jira/browse/SOLR-3191
> Project: Solr
> Issue Type: Improvement
> Reporter: Luca Cavanna
> Priority: Minor
>
> I think it would be useful to add a way to exclude field from the Solr
> response. If I have for example 100 stored fields and I want to return all of
> them but one, it would be handy to list just the field I want to exclude
> instead of the 99 fields for inclusion through fl.
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