perf(#9642): set changes_doc_ids_optimization_threshold a high value

[dianabarsan]

Description

It appears that changes_doc_ids_optimization_threshold is still working and will provide us the same performance we had before.

#9642

Code review checklist

• Readable: Concise, well named, follows the style guide, documented if necessary.
• Documented: Configuration and user documentation on cht-docs
• Tested: Unit and/or e2e where appropriate
• Internationalised: All user facing text
• Backwards compatible: Works with existing data and configuration or includes a migration. Any breaking changes documented in the release notes.

Compose URLs

If Build CI hasn't passed, these may 404:

• Core
• CouchDB Single
• CouchDB Cluster

License

The software is provided under AGPL-3.0. Contributions to this project are accepted under the same license.

[dianabarsan]

Hi @sugat009
Would you mind running this branch and time purging on your test instance? Thanks!!

[sugat009]

@dianabarsan The purge has been completed using this branch. It took 47.108 minutes for the same amount of docs as in #9303 .

[dianabarsan]

Ok, this is first time purging or second time? It doesn't really matter, but we're in the ballpark. I think Couch 3.3 time was 60 min right?

Then we'll go with this one.

[sugat009]

yes, for couch 3.3.3 was ~60 mins.