31 lines
1.5 KiB
SQL
31 lines
1.5 KiB
SQL
-- ========================================
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-- 修复重复的外键约束问题
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-- ========================================
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-- 问题：evaluation_point_groups_id 列有两个外键约束，导致 PostgREST 嵌套查询失败
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-- 步骤 1: 删除旧的外键约束
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ALTER TABLE evaluation_points
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DROP CONSTRAINT IF EXISTS fk_evaluation_points_group;
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-- 步骤 2: 验证删除结果（应该只剩下 2 个外键）
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SELECT
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tc.constraint_name AS "约束名",
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kcu.column_name AS "列名",
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ccu.table_name AS "引用表",
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ccu.column_name AS "引用列"
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FROM information_schema.table_constraints AS tc
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JOIN information_schema.key_column_usage AS kcu
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ON tc.constraint_name = kcu.constraint_name
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JOIN information_schema.constraint_column_usage AS ccu
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ON ccu.constraint_name = tc.constraint_name
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WHERE tc.constraint_type = 'FOREIGN KEY'
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AND tc.table_name = 'evaluation_points'
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AND kcu.column_name IN ('evaluation_point_groups_id', 'evaluation_point_groups_pid')
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ORDER BY kcu.column_name;
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-- 预期结果（应该只有 2 个外键）：
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-- 约束名 | 列名 | 引用表 | 引用列
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-- ------------------------------------------|-------------------------------|---------------------------|-------
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-- fk_evaluation_points_child_group | evaluation_point_groups_id | evaluation_point_groups | id
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-- fk_evaluation_points_parent_group | evaluation_point_groups_pid | evaluation_point_groups | id
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