421edd8a41
config.py ClickHouse连接改可选+加DEV_MODE/kafka_brokers clickhouse_client.py 降级模式: host为空时返回None main.py 端点先查ClickHouse降级返回骨架数据+新增errorbook 新增clickhouse-init.sql创建宽表和错题表 Gateway添加/analytics路由
38 lines
1.2 KiB
SQL
38 lines
1.2 KiB
SQL
-- ClickHouse 数据库初始化脚本
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-- 适用服务：data-ana（数据分析）
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-- 表结构：student_dashboard_view（学生学情宽表）/ student_errors（错题本）
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-- 与 services/data-ana/src/data_ana/clickhouse_client.py 中的查询字段对齐
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--
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-- 使用方式（启用 ClickHouse 时执行一次）：
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-- clickhouse-client --multiquery < scripts/clickhouse-init.sql
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-- 注意：ClickHouse 为可选依赖，未配置时 data-ana 服务进入降级模式。
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-- 数据库
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CREATE DATABASE IF NOT EXISTS edu_analytics;
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-- 学生学情宽表（考试/班级/知识点维度）
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CREATE TABLE IF NOT EXISTS edu_analytics.student_dashboard_view (
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student_id String,
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class_id String,
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exam_id String,
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subject_id String,
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score Float64,
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rank_in_class UInt32,
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knowledge_point_id String,
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mastery_level Float32,
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error_count UInt32,
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last_updated DateTime
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) ENGINE = MergeTree()
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ORDER BY (student_id, class_id, exam_id);
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-- 学生错题表（错题本）
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CREATE TABLE IF NOT EXISTS edu_analytics.student_errors (
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student_id String,
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question_id String,
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knowledge_point_id String,
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error_count UInt32,
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last_error_time DateTime,
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content String
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) ENGINE = MergeTree()
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ORDER BY (student_id, knowledge_point_id);
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