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https://issues.apache.org/jira/browse/SOLR-7070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18132150#comment-18132150
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Nick Shanin commented on SOLR-7070:
-----------------------------------
>From code reading against apache/main b73f03976fa, the reference guide says
>field names should not start with a digit
>(solr/solr-ref-guide/modules/indexing-guide/pages/fields.adoc:43), and fl
>reads a plain field name only when it starts with an identifier character
>(solr/core/src/java/org/apache/solr/search/SolrReturnFields.java:225-229).
>[~kgalal], if you see a real defect on a supported release, reply and I will
>reopen it. Otherwise I plan to close it as not a bug.
🤖 AI-generated 🤖
> Issue when using "fl" with field names that start with numbers
> --------------------------------------------------------------
>
> Key: SOLR-7070
> URL: https://issues.apache.org/jira/browse/SOLR-7070
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.10.3
> Reporter: Khalid Galal
> Priority: Major
> Labels: dynamic, fields
>
> field names starting with numbers aren't working properly in fl, specific
> example from original bug report related to dynamic field suffixes using a
> numeric prefix...
> ----
> In solr 4.6, I used to select dynamic fields by exact match, e.g. the below
> query used to work with me:
> fl=123_PART
> But in solr 4.10.3, the above query doesn't work any more, so I am forced to
> use a wildcards, such as to be begin with match, e.g. the below query:
> fl=*_PART
> The above query works but returns all dynamic fields that end with "_PART",
> and that results in bad performance as our dynamic fields are stored.
> Is there any way to be able to select a dynamic field exactly like in version
> 4.6?
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