Re: Is there an easy way to compare schemas?
On 9/24/2018 9:28 AM, Michael Joyner wrote: Is there an easy way to compare schemas? When upgrading nodes, we are wanting to compare the "core" and "automatically mapped" data types between our existing schema and the new manage-schema available as part of the upgraded distrubtion. There is no difference in the format between schema.xml with the Classic schema factory and managed-schema with the new factory. The difference is that managed-schema can be changed by Solr, and schema.xml could only be changed externally to Solr. And for the most part, the format for new versions is the same as the format for old versions. At some point the and tags became optional - they are no longer required. Because the basic format hasn't changed, if the two files are mostly similar, you can simply diff the schema.xml in your older version with the managed-schema in the newer version. It might be a good idea to use the option for diff that ignores differences in whitespace. If the files are substantially different in how they are laid out, then you might need to manually compare them. Thanks, Shawn
Re: Is there an easy way to compare schemas?
I think the easiest would be to create two instances using those schemas and then see what comes back from schema API: http://lucene.apache.org/solr/guide/7_4/schema-api.html#retrieve-schema-information That will give you the outputs in the consistent format, you can just run diff on. However, if you want to actually do a graph analysis on explicit+dynamic fields -> definitions, then it is a bit more work. Doable, but is a mini-project. I did something similar before, but the code is not open-source at this moment. And it really depends on what _very specific_ question you are trying to answer. For example, it is not clear whether any example schema dynamic field should be part of the "used" calculation just because it exists... Regards, Alex. On 24 September 2018 at 11:28, Michael Joyner wrote: > Is there an easy way to compare schemas? > > When upgrading nodes, we are wanting to compare the "core" and > "automatically mapped" data types between our existing schema and the new > manage-schema available as part of the upgraded distrubtion.
Is there an easy way to compare schemas?
Is there an easy way to compare schemas? When upgrading nodes, we are wanting to compare the "core" and "automatically mapped" data types between our existing schema and the new manage-schema available as part of the upgraded distrubtion.
