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https://issues.apache.org/jira/browse/SOLR-18071?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luke Kot-Zaniewski updated SOLR-18071:
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Summary: Export Writer should optionally support for stored-only fields
(was: Export Writer should support for stored-only fields via parameter)
> Export Writer should optionally support for stored-only fields
> --------------------------------------------------------------
>
> Key: SOLR-18071
> URL: https://issues.apache.org/jira/browse/SOLR-18071
> Project: Solr
> Issue Type: Improvement
> Reporter: Luke Kot-Zaniewski
> Priority: Major
>
> Add a new includeStoredFields parameter to the /export handler to retrieve
> stored-only fields (fields without DocValues) alongside DocValues-based
> fields. The /export handler currently only supports fields with DocValues
> enabled, as it uses a streaming/sorting approach that relies on DocValues for
> efficient iteration. However, there are valid use cases where users need to
> include stored-only fields in export results. For instance, when storing very
> large text fields, DocValues may not be an option.
> The enhancement should:
> # Add a new parameter includeStoredFields. When enabled, it should allow
> stored-only fields to be included in export results
> # When a stored-only field is explicitly requested in fl without
> includeStoredFields=true, the handler should return an error with a hint
> suggesting the parameter
> # When using glob patterns (e.g., fl=*) includeStoredFields=false
> (explicitly or implicitly), stored-only fields should be silently skipped.
> With includeStoredFields=true, stored-only fields should be included
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