142 lines
3.7 KiB
JavaScript
142 lines
3.7 KiB
JavaScript
/**
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* 天气数据管理相关表
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*/
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export const up = (pgm) => {
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// 1. 气象站表
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pgm.createTable('weather_stations', {
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id: { type: 'serial', primaryKey: true },
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station_name: {
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type: 'varchar(255)',
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unique: true,
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notNull: true,
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comment: '气象站名称'
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},
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location: {
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type: 'varchar(255)',
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notNull: true,
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comment: '气象站位置'
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},
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latitude: {
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type: 'decimal(10,8)',
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comment: '纬度'
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},
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longitude: {
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type: 'decimal(11,8)',
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comment: '经度'
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},
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altitude: {
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type: 'decimal(8,2)',
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comment: '海拔高度(米)'
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},
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status: {
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type: 'varchar(50)',
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notNull: true,
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default: 'active',
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comment: 'active, maintenance, offline'
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},
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created_at: { type: 'timestamptz', notNull: true, default: pgm.func('current_timestamp') },
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updated_at: { type: 'timestamptz', notNull: true, default: pgm.func('current_timestamp') }
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});
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// 2. 天气观测数据表
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pgm.createTable('weather_observations', {
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id: { type: 'serial', primaryKey: true },
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weather_station_id: {
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type: 'integer',
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notNull: true,
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references: 'weather_stations(id)',
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onDelete: 'CASCADE'
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},
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observation_time: {
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type: 'timestamptz',
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notNull: true,
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comment: '观测时间'
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},
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temperature: {
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type: 'decimal(5,2)',
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comment: '温度(摄氏度)'
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},
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humidity: {
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type: 'decimal(5,2)',
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comment: '湿度(%)'
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},
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cloud_cover: {
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type: 'decimal(5,2)',
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comment: '云量(%)'
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},
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visibility: {
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type: 'decimal(6,2)',
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comment: '能见度(公里)'
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},
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wind_speed: {
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type: 'decimal(5,2)',
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comment: '风速(km/h)'
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},
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wind_direction: {
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type: 'integer',
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comment: '风向(度，0-360)'
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},
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condition: {
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type: 'varchar(100)',
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comment: '天气状况描述'
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},
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observation_quality: {
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type: 'varchar(50)',
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comment: 'excellent, moderate, poor'
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},
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pressure: {
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type: 'decimal(7,2)',
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comment: '气压(hPa)'
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},
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precipitation: {
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type: 'decimal(6,2)',
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comment: '降水量(mm)'
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},
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created_at: { type: 'timestamptz', notNull: true, default: pgm.func('current_timestamp') }
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});
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// 3. 天气预报数据表
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pgm.createTable('weather_forecasts', {
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id: { type: 'serial', primaryKey: true },
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weather_station_id: {
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type: 'integer',
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notNull: true,
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references: 'weather_stations(id)',
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onDelete: 'CASCADE'
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},
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forecast_time: {
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type: 'timestamptz',
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notNull: true,
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comment: '预报时间'
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},
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issued_at: {
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type: 'timestamptz',
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notNull: true,
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comment: '预报发布时间'
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},
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temperature: { type: 'decimal(5,2)' },
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cloud_cover: { type: 'decimal(5,2)' },
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precipitation: { type: 'decimal(6,2)' },
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visibility: { type: 'decimal(6,2)' },
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condition: { type: 'varchar(100)' },
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confidence: {
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type: 'decimal(3,2)',
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comment: '预报置信度(0-1)'
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},
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created_at: { type: 'timestamptz', notNull: true, default: pgm.func('current_timestamp') }
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});
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// 添加索引
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pgm.createIndex('weather_stations', 'station_name');
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pgm.createIndex('weather_observations', 'weather_station_id');
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pgm.createIndex('weather_observations', 'observation_time');
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pgm.createIndex('weather_forecasts', 'weather_station_id');
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pgm.createIndex('weather_forecasts', 'forecast_time');
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};
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export const down = (pgm) => {
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pgm.dropTable('weather_forecasts');
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pgm.dropTable('weather_observations');
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pgm.dropTable('weather_stations');
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}; |