Christopher Baines
64be52844e
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.
32 lines
1 KiB
PL/PgSQL
32 lines
1 KiB
PL/PgSQL
-- Deploy guix-data-service:git_branch_id to pg
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BEGIN;
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ALTER TABLE git_branches RENAME TO git_branches_old;
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CREATE TABLE git_branches (
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id integer PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
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name character varying NOT NULL,
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git_repository_id integer NOT NULL REFERENCES git_repositories (id),
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CONSTRAINT git_repository_id_name_unique UNIQUE (git_repository_id, name)
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);
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CREATE TABLE git_commits (
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id integer PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
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commit character varying NOT NULL,
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git_branch_id integer NOT NULL REFERENCES git_branches (id),
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datetime timestamp without time zone NOT NULL
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);
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INSERT INTO git_branches (name, git_repository_id)
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SELECT DISTINCT name, git_repository_id
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FROM git_branches_old;
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INSERT INTO git_commits (commit, git_branch_id, datetime)
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SELECT commit, git_branches.id, datetime
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FROM git_branches_old
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INNER JOIN git_branches
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ON git_branches_old.name = git_branches.name
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AND git_branches_old.git_repository_id = git_branches.git_repository_id;
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COMMIT;
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