[SOLR-10286] Declare a field as "large", don't keep value in the document cache

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.5, 7.0
• Assignee: David Smiley
• Reporter: David Smiley
• Created: 15/Mar/17 06:37
• Updated: 08/Jun/19 15:34
• Resolved: 21/Apr/17 15:39

Description

(part of umbrella issue SOLR-10117)
This adds a field to be declared as "large" in the schema. In the SolrIndexSearcher.doc(...) handling, these fields are lazily fetched from Lucene. Unlike LazyDocument.LazyField, it's not cached after first-use unless the value is "small" < 512KB by default. "large" can only be used when its stored="true" and multiValued="false" and the field is otherwise compatible (basically not a numeric field) – you'll get a helpful exception if it's unsupported. BinaryField is not yet supported at this time; it could be in the future.

Issue Links

• is part of: SOLR-10117 Big docs and the DocumentCache; umbrella issue
• relates to: SOLR-10255 Large psuedo-stored fields via BinaryDocValuesField