12 lines
519 B
SQL
12 lines
519 B
SQL
-- 添加交易统计字段
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-- 用于记录策略类型和持仓持续时间
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ALTER TABLE `trades`
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ADD COLUMN IF NOT EXISTS `strategy_type` VARCHAR(50) COMMENT '策略类型: trend_following, mean_reversion' AFTER `exit_reason`,
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ADD COLUMN IF NOT EXISTS `duration_minutes` INT COMMENT '持仓持续时间（分钟）' AFTER `strategy_type`;
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-- 添加索引以便统计查询
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ALTER TABLE `trades`
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ADD INDEX IF NOT EXISTS `idx_strategy_type` (`strategy_type`),
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ADD INDEX IF NOT EXISTS `idx_exit_reason` (`exit_reason`);
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