Import TWIR 02/14 (#446)

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Author: vipulnsward

_posts/2025-02-14-this-week-in-rails.markdown

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+---
+layout: post
+title: "Routes Lookup Optimizations, PostgreSQL Alter Table improvements and more!"
+categories: news
+author: vipulnsward
+og_image: assets/images/this-week-in-rails.png
+published: true
+date: 2025-02-14
+---
+
+Hey everyone, Happy Friday!
+
+[Vipul](https://www.saeloun.com/team/vipul) here with the latest updates for This Week in Rails. 
+
+This week, several improvements were made to Routes lookup. Below are a few notable changes- 
+
+[Speed up GTG Simulator by reducing slices/matches](https://github.com/rails/rails/pull/54491)  
+This change improves routing performance by 10-20% in simple cases by removing duplication and preventing excess string allocations.
+
+[Micro-Optimize Router#find_routes](https://github.com/rails/rails/pull/54517)  
+This PR slightly improves the routes finding process by removing overheads and speeds up the route look up process by 2-2.5x faster compared to Rails 8.0.
+
+[Simplify stdparam state to reduce retained hashes](https://github.com/rails/rails/pull/54476)  
+This PR simplifies the data stored in `stdparam_state` to be a simpler hash mapping and improving performance in hash intensive operations.
+
+Here's a list of other PRs with improvements around this area: [#54504](https://github.com/rails/rails/pull/54504), [#54491](https://github.com/rails/rails/pull/54491), [#54505](https://github.com/rails/rails/pull/54505),  [#54515](https://github.com/rails/rails/pull/54515), [#54516](https://github.com/rails/rails/pull/54516), [#54526](https://github.com/rails/rails/pull/54526).
+
+[Allow execution wrapper to handle all exceptions](https://github.com/rails/rails/pull/54455/files)  
+This PR changes the execution wrapper and execution middleware to default to catching all `Exception`s instead of all `StandardError`s.
+
+Essentially, before this change:
+
+```ruby
+Rails.error.handle do
+  raise Exception
+end
+```
+would not handle the exception, but now it does.
+
+[Make Value type default to mutable](https://github.com/rails/rails/pull/54435)  
+This change makes the ActiveModel type values mutable by default, which in turn guarantees that custom type values are duplicated appropriately when modified.
+
+[Pass keyword arguments to PostgreSQL Adapter Table methods](https://github.com/rails/rails/pull/54472)  
+With the use of forward argument `(...)` PostgreSQL adapter table definition methods can now accept keyword arguments.
+This change lays essential groundwork for `validate_constraint` and `validate_check_constraint` to start accepting keyword arguments.
+
+[Further restrict which contradicted queries need to be run](https://github.com/rails/rails/pull/54430)  
+This change ensures that only fully matching queries trigger aggregation, ignoring mismatches and certain ARel values to avoid some additional queries.
+
+[Allow to skip HashWithIndifferentAccess value conversion](https://github.com/rails/rails/pull/54437)  
+This PR addresses an inefficiency in ActiveModel’s handling of attribute changes, specifically when working with HashWithIndifferentAccess in serialized attributes.
+
+
+_You can view the whole list of changes [here](https://github.com/rails/rails/compare/@%7B2025-02-08%7D...main@%7B2025-02-14%7D)._  
+
+_We had [18 contributors](https://contributors.rubyonrails.org/contributors/in-time-window/20250208-20250214) to the Rails codebase this past week!_
+
+Until next time!
+
+_[Subscribe](https://world.hey.com/this.week.in.rails) to get these updates mailed to you._