Github user dsmiley commented on a diff in the pull request:
https://github.com/apache/lucene-solr/pull/416#discussion_r204762445
--- Diff:
solr/core/src/java/org/apache/solr/response/transform/ChildDocTransformerFactory.java
---
@@ -61,6 +65,10 @@
*/
public class ChildDocTransformerFactory extends TransformerFactory {
+ public static final String PATH_SEP_CHAR = "/";
+ public static final String NUM_SEP_CHAR = "#";
+ private static final String sRootFilter = "*:* NOT " +
NEST_PATH_FIELD_NAME + ":*";
--- End diff --
We're discussing indexing NEST_PATH_FIELD_NAME tokenized, which would make
this sRootFilter query more expensive. Additionally, there might not be a nest
path for users not tracking the deep nested stuff. Lets instead use this:
`*:* NOT _ROOT_:*` since that field is also only populated for child docs.
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