package com.tcm.training.admin.live.mapper;
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import com.baomidou.mybatisplus.core.mapper.BaseMapper;
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import com.tcm.training.admin.live.entity.LiveSessionQuestion;
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import org.apache.ibatis.annotations.Delete;
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import org.apache.ibatis.annotations.Mapper;
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import org.apache.ibatis.annotations.Param;
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@Mapper
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public interface LiveSessionQuestionMapper extends BaseMapper<LiveSessionQuestion> {
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/**
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* 物理删除指定场次的全部题目，避免逻辑删除记录占用唯一索引。
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*/
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@Delete("DELETE FROM tcm_live_session_question WHERE session_id = #{sessionId}")
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int hardDeleteBySessionId(@Param("sessionId") Long sessionId);
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}
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