Allow copyField directives to be controled by another (boolean) field
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Key: SOLR-2149
URL: https://issues.apache.org/jira/browse/SOLR-2149
Project: Solr
Issue Type: New Feature
Reporter: Peter Wolanin
Thinking about alternative approaches to the problem outlined in SOLR-2010, it
occurs to me that there are many cases where it would be useful to be able to
control copyField behavior rather than having to fully populate or omit
document fields. In regards to spellcheck, I could then have a few different
spellcheck indexes each built from a different field and indicate for each
document whether it's text should be added to each of the different spellcheck
fields.
I'm imagining a general syntax like this:
{code}
<copyField source="body" dest="teaser" maxChars="300"
controlField="populate_teaser"/>
{code}
If not sure if Solr would could use the value of a control field only matches
the "ignored" field type, but that's what I'm thinking about as one
possibility. In other words, I can pass index-time flags into the document
that are reflected in the terms of what's indexed but not explicitly stored in
the document.
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