19f3cc8679
关键修复： 1. BackfillNavHistoryInternalAsync 汇率处理bug - holdings 存储目标币种成本，避免卖出时用当前汇率重转历史成本 - 优先使用交易时保存的汇率 2. Transaction 表新增字段 - exchange_rate: 交易时汇率 - total_amount_base: 本位币金额 - 创建交易时自动保存汇率 3. CalculateAndSaveDailyNavAsync - 优先使用 TotalAmountBase 字段计算成本 - 回退到当前汇率（兼容历史数据） 4. 新增迁移脚本 sql/migrate_financial_fields.sql
44 lines
1.8 KiB
SQL
44 lines
1.8 KiB
SQL
-- =============================================
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-- 数据库迁移脚本：为金融计算增加关键字段
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-- 执行前请备份数据
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-- =============================================
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-- 1. positions 表添加 total_cost 字段
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ALTER TABLE positions ADD COLUMN total_cost DECIMAL(18,4) DEFAULT 0;
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-- 初始化 total_cost（shares * avg_price）
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UPDATE positions SET total_cost = shares * avg_price WHERE total_cost = 0 OR total_cost IS NULL;
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-- 验证 positions 更新
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SELECT 'positions' as table_name, COUNT(*) as total,
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SUM(CASE WHEN total_cost > 0 THEN 1 ELSE 0 END) as with_cost
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FROM positions;
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-- =============================================
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-- 2. transactions 表添加汇率相关字段
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ALTER TABLE transactions ADD COLUMN exchange_rate DECIMAL(18,6) DEFAULT NULL;
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ALTER TABLE transactions ADD COLUMN total_amount_base DECIMAL(18,4) DEFAULT NULL;
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-- 为已有交易记录填充当前汇率（历史数据只能用当前汇率近似）
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-- 注意：这会导致历史净值计算有汇率偏差，建议手动修正重要历史交易
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-- UPDATE transactions t
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-- JOIN portfolios p ON t.portfolio_id = p.id
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-- SET t.exchange_rate = 1.0, t.total_amount_base = t.total_amount
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-- WHERE t.currency = p.currency OR t.currency IS NULL;
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-- 验证 transactions 更新
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SELECT 'transactions' as table_name, COUNT(*) as total,
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SUM(CASE WHEN total_amount_base IS NOT NULL THEN 1 ELSE 0 END) as with_base_amount
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FROM transactions;
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-- =============================================
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-- SQLite 版本（如果使用 SQLite）
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-- ALTER TABLE positions ADD COLUMN total_cost REAL DEFAULT 0;
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-- UPDATE positions SET total_cost = shares * avg_price;
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-- SQLite 不支持多个 ADD COLUMN，需要分开执行
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-- ALTER TABLE transactions ADD COLUMN exchange_rate REAL DEFAULT NULL;
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-- ALTER TABLE transactions ADD COLUMN total_amount_base REAL DEFAULT NULL;
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