Refactor preloader to use namespace
What does this MR do and why?
Discovered while working on !142238 (comment 1738327790)
I do not think we want to limit the preloading to group type namespaces only.
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Database
There is only one change to the query before and after and it's wether the join applies the type = 'Group'
to the query
:group
before - using SELECT
namespaces.*,
root_query.project_id AS source_id
FROM
"namespaces"
INNER JOIN (
SELECT
"projects"."id",
"projects"."namespace_id",
projects.id AS project_id,
namespaces.traversal_ids[1] AS root_id
FROM
"projects"
INNER JOIN "namespaces" ON "namespaces"."type" = 'Group'
AND "namespaces"."id" = "projects"."namespace_id"
AND "namespaces"."type" = 'Group'
WHERE
"projects"."id" IN (
SELECT
"projects"."id"
FROM
"projects"
LIMIT 10)) AS root_query ON root_query.root_id = namespaces.id
/*application:console,db_config_name:main,console_hostname:terrichus-MBP.localdomain,console_username:terrichu,line:/app/models/preloaders/project_root_ancestor_preloader.rb:19:in `group_by'*/
:namespace
after - using SELECT
namespaces.*,
root_query.project_id AS source_id
FROM
"namespaces"
INNER JOIN (
SELECT
"projects"."id",
"projects"."namespace_id",
projects.id AS project_id,
namespaces.traversal_ids[1] AS root_id
FROM
"projects"
INNER JOIN "namespaces" ON "namespaces"."id" = "projects"."namespace_id"
WHERE
"projects"."id" IN (
SELECT
"projects"."id"
FROM
"projects"
LIMIT 10)) AS root_query ON root_query.root_id = namespaces.id
/*application:console,db_config_name:main,console_hostname:terrichus-MBP.localdomain,console_username:terrichu,line:/app/models/preloaders/project_root_ancestor_preloader.rb:19:in `group_by'*/
How to set up and validate locally
N/A
Edited by Terri Chu