kckoh opened a new pull request, #62974:
URL: https://github.com/apache/airflow/pull/62974
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## Summary
Changes the default sort column in the DAG runs list UI from run_after to id
to eliminate an unnecessary temporary B-tree sort, improving query performance
on the GET /dags/{dag_id}/dagRuns endpoint.
## Problem
When sorting by run_after, SQLite/PostgreSQL cannot satisfy the ORDER BY
using an existing index, resulting in an additional in-memory sort step (USE
TEMP B-TREE FOR ORDER BY).
## Solution
Sorting by id (primary key) allows the query planner to use the existing
index directly, eliminating the temp sort entirely.
related: #62025
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