weichenandCursor
28478bdca5
Replace per-creator name uniqueness with a global index among non-retired projects, and reject cross-user duplicate creates with 409. Co-authored-by: Cursor <cursoragent@cursor.com>
39 lines
1.2 KiB
SQL
39 lines
1.2 KiB
SQL
-- +goose Up
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-- 全局项目名唯一：任意活跃项目不得重名（跨创建人）。
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-- 替换 00056 的 per-creator 唯一索引。
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-- Deduplicate globally by lower(trim(name)) among non-retired rows (keep lowest id).
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WITH dups AS (
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SELECT id,
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ROW_NUMBER() OVER (
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PARTITION BY lower(trim(name))
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ORDER BY id ASC
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) AS rn
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FROM projects
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WHERE length(trim(name)) > 0
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AND COALESCE(status, 'active') <> 'demo_retired'
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)
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UPDATE projects p
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SET name = p.name || ' (dup-' || p.id || ')',
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updated_at = now()
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FROM dups d
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WHERE p.id = d.id AND d.rn > 1;
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DROP INDEX IF EXISTS uq_projects_creator_name;
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CREATE UNIQUE INDEX IF NOT EXISTS uq_projects_name_global
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ON projects (lower(trim(name)))
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WHERE length(trim(name)) > 0
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AND COALESCE(status, 'active') <> 'demo_retired';
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COMMENT ON INDEX uq_projects_name_global IS
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'Global unique project name among non-retired projects (case-insensitive, trimmed).';
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-- +goose Down
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DROP INDEX IF EXISTS uq_projects_name_global;
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CREATE UNIQUE INDEX IF NOT EXISTS uq_projects_creator_name
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ON projects (creator_user_id, lower(trim(name)))
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WHERE creator_user_id IS NOT NULL AND creator_user_id > 0
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AND length(trim(name)) > 0;
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