[GitHub] [lucene-solr] dsmiley commented on pull request #1514: SOLR-13749: Change cross-collection join query syntax to {!join method=crossCollection ...}

[GitBox <gi...@apache.org>]

dsmiley commented on pull request #1514:
URL: https://github.com/apache/lucene-solr/pull/1514#issuecomment-639863580


   If someone uses join QParser with either no method or the default method=index and if fromIndex refers to a non-qualifying collection (sharded or not node-local), they'll get one of the errors printed from this method: `org.apache.solr.search.join.ScoreJoinQParserPlugin#findLocalReplicaForFromIndex`.
   * `"SolrCloud join: multiple shards not yet supported " + fromIndex`.  I suggest rewording: `To join with a sharded collection, use method=crossCollection.`
   * `"SolrCloud join: No active replicas for "+fromIndex+" found in node " + nodeName`.  I suggest rewording: `To join with a collection that might not be co-located, use method=crossCollection`
   
   There is another case as well when the local replica is not in an Active state but lets ignore that.


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