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https://issues.apache.org/jira/browse/SOLR-14954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17217696#comment-17217696
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Erick Erickson commented on SOLR-14954:
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Oh, and I made a minor change to faceting along the way that I don't think
needs a separate PR.
> Heavily edit reindexing.adoc
> ----------------------------
>
> Key: SOLR-14954
> URL: https://issues.apache.org/jira/browse/SOLR-14954
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: documentation
> Reporter: Erick Erickson
> Assignee: Erick Erickson
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> As I posted on the dev list, I found myself typing for the Nth time that you
> can't just change the schema and then just keep going, you usually have to
> delete your current index and start over.
> So I started looking for a link to point people to instead, it's silly of me
> to re-type this over and over. It only took me 10-20 repetitions to come to
> that conclusion...
> Which caused me to look at the ref guide, particularly the reindexing.adoc.
> I'd like to edit it pretty heavily to slant it towards encouraging people to
> reindex rather than give them much hope they can get away without doing so.
> There's a particularly interesting line in the doc about "you usually make
> changes in your schema for a reason" (paraphrasing) that got me to thinking.
> Until everything is reindexed those reasons won't be served anyway, even for
> something as "safe" as adding a field you search on. So you'll have to
> reindex anyway an overwhelming percentage of the time. I think it's better to
> set users up to be ready for that than give them false hope that they can get
> away without it.
> I'll attach a PR with my preliminary edits momentarily for comment. I have to
> put it aside for a while and look at it again with fresh eyes, but I thought
> I'd garner some comments along the way about the general direction.
> [~ctargett] [~hossman] Your comments particularly welcome.
> I did think about changing the title to "All hope abandon, ye who enter here
> that you can change your schema without reindexing"...
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