[jira] [Created] (SOLR-12535) Remove syntax for providing index boosts in Solr's JSON update syntax

["David Smiley (JIRA)" <ji...@apache.org>]

David Smiley created SOLR-12535:
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             Summary: Remove syntax for providing index boosts in Solr's JSON update syntax
                 Key: SOLR-12535
                 URL: https://issues.apache.org/jira/browse/SOLR-12535
             Project: Solr
          Issue Type: Task
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: David Smiley
             Fix For: master (8.0)


In Solr 7 we can't index boost as it's gone from Lucene. The JSON support for this syntax is still allowed but logs a warning and doesn't apply the boost (as it's not supported). I'm proposing we remove support for this altogether. This also means removing an little-known way to specify an "extended field value" that doesn't necessarily have a boost.
 With boost: Today logs a warning. *Don't want this to work at all.*
{code:java}
[{'id':'1', 'val_s':{'value':'foo', 'boost':2.0}}]
{code}
Without boost: Today works. *Don't want this to work at all,* as it complicates support for labelled child documents – SOLR-12441.
{code:java}
[{'id':'1', 'val_s':{'value':'foo'}}]
{code}
Internally this is parsed by
 org.apache.solr.handler.loader.JsonLoader.SingleThreadedJsonLoader#parseExtendedFieldValue
 I think we need make no reference to the notion of an "extended field value". Either we have a "partial update", or we have a "child document"; nothing else.

[https://lucene.apache.org/solr/guide/7_3/updating-parts-of-documents.html]

Note: partial updates look similar and have exactly one field-value using a limited set of verbs like "set":
{code}
[{'id':'1', 'val_s':{'set':'foo'}}]
{code}



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