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Partition the package_derivations_by_guix_revision_range table

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And create a proper git_branches table in the process.

I'm hoping this will help with slow deletions from the
package_derivations_by_guix_revision_range table in the case where there are
lots of branches, since it'll separate the data for one branch from another.

These migrations will remove the existing data, so
rebuild-package-derivations-table will currently need manually running to
regenerate it.
This commit is contained in:
Christopher Baines 2022-05-23 19:10:25 +01:00
parent 89545caa3f
commit 64be52844e
19 changed files with 442 additions and 167 deletions
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sqitch/sqitch.plan
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@ -83,3 +83,5 @@ some_indexes 2021-05-17T17:36:38Z Christopher Baines <mail@cbaines.net> # Add so
package_metadata_location_id_index 2021-05-27T19:51:13Z Canan Talayhan <canan.t.talayhan@gmail.com> # Add index for location id
packages_replacement 2021-04-24T04:52:57Z Christopher Baines <mail@cbaines.net> # Add packages.replacement_package_id
package_derivations_not_null_hash_index 2021-07-11T14:19:32Z Christopher Baines <mail@cbaines.net> # Add an index to package_derivations
git_branch_id 2022-05-23T18:11:14Z Chris <chris@felis> # Add git_branch.id
partition_package_derivations_by_guix_revision_range 2022-05-23T18:20:37Z Chris <chris@felis> # Partition package_derivations_by_guix_revision_range