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https://issues.apache.org/jira/browse/SOLR-6913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14272191#comment-14272191
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Steve Rowe commented on SOLR-6913:
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I reverted my initial commit, then made changes to {{schema.xml}}, putting back 
most field type and dynamic fields I had removed, added dynamic fields for each 
field type when they weren't there, added a warning about the catch-all 
{{_text}} field to the schema, then renamed {{schema.xml}} to 
{{managed-schema}}.   This keeps the comments-as-documentation intact in the 
configset, where they won't be overwritten.  Also, the schema will be much 
easier to maintain, and track history for.

I think this is done. (Should have reopened and then resolved again - too late 
now...)

> audit & cleanup "schema" in data_driven_schema_configs
> ------------------------------------------------------
>
>                 Key: SOLR-6913
>                 URL: https://issues.apache.org/jira/browse/SOLR-6913
>             Project: Solr
>          Issue Type: Task
>            Reporter: Hoss Man
>            Assignee: Steve Rowe
>            Priority: Blocker
>             Fix For: 5.0, Trunk
>
>         Attachments: SOLR-6913-trim-schema.patch, 
> SOLR-6913-trim-schema.patch, SOLR-6913.patch
>
>
> the data_driven_schema_configs configset has some issues that should be 
> reviewed carefully & cleaned up...
> * currentkly includes a schema.xml file:
> ** this was previously pat of the old example to show the automatic 
> "bootstraping" of schema.xml -> managed-schema, but at this point it's just 
> kind of confusing
> ** we should just rename this to "managed-schema" in svn - the ref guide 
> explains the bootstraping
> * the effective schema as it currently stands includes a bunch of copyFields 
> & dynamicFields that are taken wholesale from the techproducts example
> ** some of these might make sense to keep in a general example (ie: "\*_txt") 
> but in general they should all be reviewed.
> ** a bunch of this cruft is actually commented out already, but anything we 
> don't want to keep should be removed to eliminate confusion
> * SOLR-6471 added an explicit "_text" field as the default and made it a 
> copyField catchall (ie: "\*")
> ** the ref guide schema API example responses need to reflect the existence 
> of this field: 
> https://cwiki.apache.org/confluence/display/solr/Schemaless+Mode
> ** we should draw heavy attention to this field+copyField -- both with a "/!\ 
> NOTE" in the refguide and call it out in solrconfig.xml & "managed-schema" 
> file comments since people who start with these configs may be suprised and 
> wind up with a very bloated index



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