Details
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Sub-task
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Status: Closed
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Major
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Resolution: Fixed
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Description
As discussed in SOLR-12298, to make use of the meta-data fields in SOLR-12441, there needs to be a smarter child document transformer, which provides the ability to rebuild the original nested documents' structure.
In addition, I also propose the transformer will also have the ability to bring only some of the original hierarchy, to prevent unnecessary block join queries. e.g.
{"a": "b", "c": [ {"e": "f"}, {"e": "g"} , {"h": "i"} ]}
Incase my query is for all the children of "a:b", which contain the key "e" in them, the query will be broken in to two parts:
1. The parent query "a:b"
2. The child query "e:*".
If the only children flag is on, the transformer will return the following documents:
[ {"e": "f"}, {"e": "g"} ]
In case the flag was not turned on(perhaps the default state), the whole document hierarchy will be returned, containing only the matching children:
{"a": "b", "c": [ {"e": "f"}, {"e": "g"} ]
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