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Calum H.
5c697f675c
* fix: preserve instance file identity during upsert * fix: preserve present files when hashing fails * fix: serialize per-instance content mutations * fix: prevent duplicate content entries * fix: make file and content entry writes atomic * fix: invalidate cached hashes for modified files * feat: content lock * fix: boris rev
47 lines
1.3 KiB
SQL
47 lines
1.3 KiB
SQL
-- Older app versions could save the same content entry more than once. Remove the older copies before preventing future duplicates.
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WITH ranked_entries AS (
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SELECT
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id,
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ROW_NUMBER() OVER (
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PARTITION BY content_set_id, file_id
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ORDER BY modified_at DESC, added_at DESC, id DESC
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) AS duplicate_rank
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FROM instance_content_entries
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WHERE file_id IS NOT NULL
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)
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DELETE FROM instance_content_entries
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WHERE id IN (
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SELECT id
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FROM ranked_entries
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WHERE duplicate_rank > 1
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);
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WITH ranked_entries AS (
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SELECT
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id,
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ROW_NUMBER() OVER (
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PARTITION BY content_set_id, project_id, version_id
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ORDER BY modified_at DESC, added_at DESC, id DESC
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) AS duplicate_rank
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FROM instance_content_entries
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WHERE file_id IS NULL
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AND project_id IS NOT NULL
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AND version_id IS NOT NULL
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)
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DELETE FROM instance_content_entries
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WHERE id IN (
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SELECT id
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FROM ranked_entries
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WHERE duplicate_rank > 1
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);
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CREATE UNIQUE INDEX instance_content_entries_content_set_file_unique
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ON instance_content_entries(content_set_id, file_id)
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WHERE file_id IS NOT NULL;
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CREATE UNIQUE INDEX instance_content_entries_content_set_project_version_unique
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ON instance_content_entries(content_set_id, project_id, version_id)
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WHERE file_id IS NULL
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AND project_id IS NOT NULL
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AND version_id IS NOT NULL;
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