50 lines
2.8 KiB
PL/PgSQL
50 lines
2.8 KiB
PL/PgSQL
CREATE TABLE call_number_voice (
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id INT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
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play_count INT NOT NULL CHECK (play_count BETWEEN 1 AND 5),
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call_prefix VARCHAR(20),
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call_suffix VARCHAR(50),
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speed VARCHAR(10) NOT NULL CHECK (speed IN ('较慢', '正常', '较快')),
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volume INT NOT NULL CHECK (volume BETWEEN 0 AND 100),
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interval_seconds INT NOT NULL,
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cycle_broadcast BOOLEAN NOT NULL DEFAULT false,
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create_time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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update_time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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-- 核心约束：循环播放与间隔的逻辑关联
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CONSTRAINT chk_cycle_interval
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CHECK (
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(cycle_broadcast = false AND interval_seconds = 0)
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OR
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(cycle_broadcast = true AND interval_seconds > 0)
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)
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);
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-- 1. 添加表注释（PostgreSQL 语法）
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COMMENT ON TABLE call_number_voice IS '叫号语音配置表';
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-- 2. 逐个添加字段注释（PostgreSQL 语法）
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COMMENT ON COLUMN call_number_voice.id IS '主键ID，自增';
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COMMENT ON COLUMN call_number_voice.play_count IS '播放次数（1-5次）';
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COMMENT ON COLUMN call_number_voice.call_prefix IS '叫号前缀（如“请”）';
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COMMENT ON COLUMN call_number_voice.call_suffix IS '叫号后缀（如“到1号窗口就诊”）';
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COMMENT ON COLUMN call_number_voice.speed IS '语速（较慢/正常/较快）';
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COMMENT ON COLUMN call_number_voice.volume IS '音量（0-100%）';
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COMMENT ON COLUMN call_number_voice.interval_seconds IS '播报间隔（秒）';
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COMMENT ON COLUMN call_number_voice.cycle_broadcast IS '是否循环播报（默认关闭）';
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COMMENT ON COLUMN call_number_voice.create_time IS '创建时间（自动填充当前时间）';
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COMMENT ON COLUMN call_number_voice.update_time IS '更新时间（自动更新）';
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-- 实现update_time自动更新（PostgreSQL需通过触发器）
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CREATE OR REPLACE FUNCTION update_call_number_voice_time()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.update_time = CURRENT_TIMESTAMP;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER trigger_call_number_voice_update
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BEFORE UPDATE ON call_number_voice
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FOR EACH ROW
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EXECUTE FUNCTION update_call_number_voice_time();
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INSERT INTO call_number_voice (play_count, call_prefix, call_suffix, speed, volume, interval_seconds, cycle_broadcast) VALUES (2,'请','到诊室就诊','正常',80,10,TRUE); |