arafalov commented on pull request #1863:
URL: https://github.com/apache/lucene-solr/pull/1863#issuecomment-696704951
@noblepaul Good point:
1. **bin/solr start**
2. Edit the default configset's add-schema-fields definition to
- Replace AddSchema... with GuessSchema... URP
- Remove _default_ parameter (code automatically widens to "String" as
last step)
- Remove _Integer_ mapping, where _Long_ already exists (code
automatically widens to nearest acceptable definition for numerics)
3. **bin/solr create -c guess**
4. **bin/post -c guess -params "guess-schema=true"
example/exampledocs/*.xml**
5. As post does indexing and then commit, it triggers both phases of the URP
6. At the point, the schema is created (based on all data) but nothing is
actually indexed; the user can review and adjust the schema without any issues
7. Flag value can actually be anything for now, in the future I was thinking
that maybe this could be a tag to mark new fields (see SOLR-14855)
8. **bin/post -c guess example/exampledocs/*.xml**
9. Now the data is entered and can be searched
10. **bin/post -c guess -params "guess-schema=true"
example/films/films.json**
11. **bin/post -c guess example/films/films.json**
12. This shows that we don't need the "extra steps" instructions, the films
example current requires.
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