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README: add section on Alternatives [ci skip] #137

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Nov 21, 2022
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README: add section on Alternatives [ci skip] #137

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6 changes: 6 additions & 0 deletions README.md
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Expand Up @@ -19,6 +19,12 @@ Real upsert for PostgreSQL 9.5+ and Rails 5.2+ / ActiveRecord 5.2+. Uses [ON CON
- Ruby MRI, with the `pg` gem
- _JRuby is currently not supported_

## Alternatives

This library was written at a time in history when Rails did not support any `#upsert` method.

Instead of using this library, if you are using a current version of Rails, you may want to [use its `#upsert`](https://api.rubyonrails.org/classes/ActiveRecord/Persistence/ClassMethods.html#method-i-upsert). You may want to investigate how [newer PostgreSQL versions support `MERGE` statement](https://www.postgresql.org/docs/current/sql-merge.html).

### NB: Releases to avoid

Due to a broken build matrix, v0.9.2 and v0.9.3 are incompatible with Rails
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