17 lines
552 B
PL/PgSQL
17 lines
552 B
PL/PgSQL
-- Deploy guix-data-service:packages_replacement to pg
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BEGIN;
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ALTER TABLE packages
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ADD COLUMN replacement_package_id integer REFERENCES packages (id);
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ALTER TABLE packages DROP CONSTRAINT packages_pkey;
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ALTER TABLE packages ADD PRIMARY KEY (id);
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CREATE UNIQUE INDEX packages_not_null_replacement_package_id_idx
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ON packages (name, version, package_metadata_id, replacement_package_id);
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CREATE UNIQUE INDEX packages_null_replacement_package_id_idx
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ON packages (name, version, package_metadata_id) WHERE replacement_package_id IS NULL;
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COMMIT;
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