simonkoson
31 lines
968 B
SQL
31 lines
968 B
SQL
-- ============================================================
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-- 002a_diagnostic_episode_number.sql
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-- 诊断脚本：将 episodes.episode_number 从全局 UNIQUE 改为 (air_year, episode_number) 复合 UNIQUE
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-- 执行方式: psql -U postgres -d milsci_dev -f 002a_diagnostic_episode_number.sql
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-- 前置条件：先设 $env:PGCLIENTENCODING="UTF8"
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-- ============================================================
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-- 三项诊断（任一异常停下找制片人）
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SELECT
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'total_rows' as check_name,
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count(*) as value
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FROM episodes
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UNION ALL
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SELECT
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'null_air_date' as check_name,
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count(*) as value
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FROM episodes
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WHERE air_date IS NULL
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UNION ALL
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SELECT
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'duplicate_year_epnum' as check_name,
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count(*) as value
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FROM (
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SELECT
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EXTRACT(YEAR FROM air_date)::int as air_year,
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episode_number
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FROM episodes
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WHERE original_episode_id IS NULL
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GROUP BY 1, 2
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HAVING count(*) > 1
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) as dup; |