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Posted to dev@lucene.apache.org by "Shawn Heisey (JIRA)" <ji...@apache.org> on 2013/02/23 16:02:12 UTC
[jira] [Commented] (SOLR-4493) Search all fields (possibly with
*:searchtext syntax)
[ https://issues.apache.org/jira/browse/SOLR-4493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13585136#comment-13585136 ]
Shawn Heisey commented on SOLR-4493:
------------------------------------
It may be beneficial to log a message at WARNING whenever the feature is used, saying that searching all fields causes performance problems. A few thousand of those messages in a user's log might make them think twice about it. :)
I did search Jira for a previous issue on this topic before filing this one.
> Search all fields (possibly with *:searchtext syntax)
> -----------------------------------------------------
>
> Key: SOLR-4493
> URL: https://issues.apache.org/jira/browse/SOLR-4493
> Project: Solr
> Issue Type: Wish
> Components: search
> Reporter: Shawn Heisey
>
> Someone came into the #solr IRC channel wanting some help with duplicating their Lucene work in Solr. One of the things they are doing in Lucene is finding all searchable fields and constructing a boolean query against all of those fields for their search text. They said that they had asked in #elasticsearch about this and gotten an affirmative answer as to whether they could use *:searchtext to search all fields in that program.
> I have seen this exact question come up a few times in IRC and the mailing list. I know that if this feature is implemented, it will likely be a performance killer, and thus it's not really a good idea to actually use in production, but we have a couple of reasons for doing it: 1) The competition does it. 2) Users keep asking how to do it.
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