potiuk commented on code in PR #58814:
URL: https://github.com/apache/airflow/pull/58814#discussion_r2582862620
##########
airflow-core/src/airflow/config_templates/config.yml:
##########
@@ -712,6 +712,20 @@ database:
type: integer
example: ~
default: "10000"
+ metadata_indexes:
+ description: |
+ JSON list of additional indexes to create on the metadata database at
API server startup.
+
+ Each item must be a string specifying the table and one or more
columns:
+ - "table(column1, column2, ...)"
+
+ Existing indexes are detected and skipped. On PostgreSQL, indexes are
created
+ CONCURRENTLY to avoid locking tables. Other databases attempt
non-blocking creation
+ where supported, otherwise fallback to standard index creation.
+ version_added: 3.2.0
+ type: string
+ example: "task_instance(dag_id, task_id,
run_id)|log(dttm)|dag_run(dag_id, run_id)"
Review Comment:
I am also quite sceptical about those indexes. It's rather dangerous path.
On one hand we do not want people to rely on our DB, yet we expect they will
know what indexes to create.
I have no good solution for now to general filtering option though. Will
think about it
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