Michael Gibney created SOLR-14454:
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Summary: support for UTF-8 (string) types with DocValuesType.BINARY
Key: SOLR-14454
URL: https://issues.apache.org/jira/browse/SOLR-14454
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Components: Schema and Analysis
Affects Versions: master (9.0)
Reporter: Michael Gibney
The goal is to add support for string fields with arbitrarily large values in
the {{/export}} handler and streaming expressions.
{{StrField}} values are currently limited to 32766 bytes for the case where
{{indexed=true}} or {{docValues=true}}. Exceeding this value triggers an
"immense field" warning, and causes indexing to fail for the associated input
doc.
Configuring a {{StrField}} field as "{{indexed=false docValues=false}}" removes
this size limitation, so it is already possible to have large _stored_
{{StrField}} values. But the "{{docValues=true}}" prerequisite for the
{{/export}} handler (and consequently for streaming expressions) limits the
size of field that can be used in conjunction with these features.
Adding support for UTF-8/string field types with {{DocValuesType.BINARY}} would
address this limitation and allow considerable flexibility in the
implementation of custom field types. N.b.: this would address field value
retrieval use cases only (e.g., {{/export}} and {{useDocValuesAsStored}});
neither sorting nor faceting would be supported.
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