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authorChristopher Baines <mail@cbaines.net>2020-03-24 20:17:18 +0000
committerChristopher Baines <mail@cbaines.net>2020-03-24 20:17:18 +0000
commit102f7a0536b76f60c06aa42ef1677ca76a4b18a7 (patch)
tree564f89365748bd8eafd50d7c4d907b643a7082c9 /guix-data-service
parent96bf658dfcd185578e30778e4f149067c78b7fbc (diff)
downloaddata-service-102f7a0536b76f60c06aa42ef1677ca76a4b18a7.tar
data-service-102f7a0536b76f60c06aa42ef1677ca76a4b18a7.tar.gz
Implement version history using the derivations table
Rather than having two big tables looking at the history, just use the derivations table as it has all the information. This will allow deleting the package_versions_by_guix_revision_range table which should help save time when importing revisions, and reduce the size of the database.
Diffstat (limited to 'guix-data-service')
-rw-r--r--guix-data-service/model/package.scm52
1 files changed, 31 insertions, 21 deletions
diff --git a/guix-data-service/model/package.scm b/guix-data-service/model/package.scm
index f484fab..dc5cc4c 100644
--- a/guix-data-service/model/package.scm
+++ b/guix-data-service/model/package.scm
@@ -230,27 +230,37 @@ ORDER BY version")
(exec-query
conn
"
-SELECT package_version,
- first_guix_revisions.commit AS first_guix_revision_commit,
- first_git_branches.datetime AS first_datetime,
- last_guix_revisions.commit AS last_guix_revision_commit,
- last_git_branches.datetime AS last_datetime
-FROM package_versions_by_guix_revision_range
-INNER JOIN guix_revisions AS first_guix_revisions
- ON first_guix_revision_id = first_guix_revisions.id
-INNER JOIN git_branches AS first_git_branches
- ON first_guix_revisions.git_repository_id = first_git_branches.git_repository_id
- AND first_guix_revisions.commit = first_git_branches.commit
-INNER JOIN guix_revisions AS last_guix_revisions
- ON last_guix_revision_id = last_guix_revisions.id
-INNER JOIN git_branches AS last_git_branches
- ON last_guix_revisions.git_repository_id = last_git_branches.git_repository_id
- AND last_guix_revisions.commit = last_git_branches.commit
-WHERE package_name = $1
-AND package_versions_by_guix_revision_range.git_repository_id = $2
-AND package_versions_by_guix_revision_range.branch_name = $3
-AND first_git_branches.name = $3
-AND last_git_branches.name = $3
+SELECT DISTINCT
+ data1.package_version,
+ first_value(first_guix_revision_commit) OVER version_window AS first_guix_revision_commit,
+ first_value(first_datetime) OVER version_window AS first_datetime,
+ last_value(last_guix_revision_commit) OVER version_window AS last_guix_revision_commit,
+ last_value(last_datetime) OVER version_window AS last_datetime
+FROM (
+ SELECT package_version,
+ first_guix_revisions.commit AS first_guix_revision_commit,
+ first_git_branches.datetime AS first_datetime,
+ last_guix_revisions.commit AS last_guix_revision_commit,
+ last_git_branches.datetime AS last_datetime
+ FROM package_derivations_by_guix_revision_range
+ INNER JOIN guix_revisions AS first_guix_revisions
+ ON first_guix_revision_id = first_guix_revisions.id
+ INNER JOIN git_branches AS first_git_branches
+ ON first_guix_revisions.git_repository_id = first_git_branches.git_repository_id
+ AND first_guix_revisions.commit = first_git_branches.commit
+ INNER JOIN guix_revisions AS last_guix_revisions
+ ON last_guix_revision_id = last_guix_revisions.id
+ INNER JOIN git_branches AS last_git_branches
+ ON last_guix_revisions.git_repository_id = last_git_branches.git_repository_id
+ AND last_guix_revisions.commit = last_git_branches.commit
+ WHERE package_name = $1
+ AND package_derivations_by_guix_revision_range.git_repository_id = $2
+ AND package_derivations_by_guix_revision_range.branch_name = $3
+ AND first_git_branches.name = $3
+ AND last_git_branches.name = $3
+ ORDER BY first_datetime ASC, package_version DESC
+) AS data1
+WINDOW version_window AS (PARTITION BY package_version)
ORDER BY first_datetime DESC, package_version DESC"
(list package-name
(number->string git-repository-id)