I've not used these in many places, to try and avoid hiding deleting data, but in this case, this will allow more easily deleting the derivation source file nars, by just deleting the derivation_source_files table entry.
13 lines
435 B
PL/PgSQL
13 lines
435 B
PL/PgSQL
-- Deploy guix-data-service:change_derivation_source_file_nars_constraint to pg
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BEGIN;
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ALTER TABLE derivation_source_file_nars
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DROP CONSTRAINT derivation_source_file_nars_derivation_source_file_id_fkey;
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ALTER TABLE derivation_source_file_nars
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ADD CONSTRAINT derivation_source_file_nars_derivation_source_file_id_fkey
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FOREIGN KEY (derivation_source_file_id) REFERENCES derivation_source_files(id)
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ON DELETE CASCADE;
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COMMIT;
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