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sub2api/backend/migrations/081_create_channels.sql

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-- Create channels table for managing pricing channels.
-- A channel groups multiple groups together and provides custom model pricing.
SET LOCAL lock_timeout = '5s';
SET LOCAL statement_timeout = '10min';
-- 渠道表
CREATE TABLE IF NOT EXISTS channels (
id BIGSERIAL PRIMARY KEY,
name VARCHAR(100) NOT NULL,
description TEXT DEFAULT '',
status VARCHAR(20) NOT NULL DEFAULT 'active',
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
-- 渠道名称唯一索引
CREATE UNIQUE INDEX IF NOT EXISTS idx_channels_name ON channels (name);
CREATE INDEX IF NOT EXISTS idx_channels_status ON channels (status);
-- 渠道-分组关联表(每个分组只能属于一个渠道)
CREATE TABLE IF NOT EXISTS channel_groups (
id BIGSERIAL PRIMARY KEY,
channel_id BIGINT NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
group_id BIGINT NOT NULL REFERENCES groups(id) ON DELETE CASCADE,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE UNIQUE INDEX IF NOT EXISTS idx_channel_groups_group_id ON channel_groups (group_id);
CREATE INDEX IF NOT EXISTS idx_channel_groups_channel_id ON channel_groups (channel_id);
-- 渠道模型定价表(一条定价可绑定多个模型)
CREATE TABLE IF NOT EXISTS channel_model_pricing (
id BIGSERIAL PRIMARY KEY,
channel_id BIGINT NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
models JSONB NOT NULL DEFAULT '[]',
input_price NUMERIC(20,12),
output_price NUMERIC(20,12),
cache_write_price NUMERIC(20,12),
cache_read_price NUMERIC(20,12),
image_output_price NUMERIC(20,8),
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS idx_channel_model_pricing_channel_id ON channel_model_pricing (channel_id);
COMMENT ON TABLE channels IS '渠道管理:关联多个分组,提供自定义模型定价';
COMMENT ON TABLE channel_groups IS '渠道-分组关联表:每个分组最多属于一个渠道';
COMMENT ON TABLE channel_model_pricing IS '渠道模型定价:一条定价可绑定多个模型,价格一致';
COMMENT ON COLUMN channel_model_pricing.models IS '绑定的模型列表JSON 数组,如 ["claude-opus-4-6","claude-opus-4-6-thinking"]';
COMMENT ON COLUMN channel_model_pricing.input_price IS '每 token 输入价格USDNULL 表示使用默认';
COMMENT ON COLUMN channel_model_pricing.output_price IS '每 token 输出价格USDNULL 表示使用默认';
COMMENT ON COLUMN channel_model_pricing.cache_write_price IS '缓存写入每 token 价格NULL 表示使用默认';
COMMENT ON COLUMN channel_model_pricing.cache_read_price IS '缓存读取每 token 价格NULL 表示使用默认';
COMMENT ON COLUMN channel_model_pricing.image_output_price IS '图片输出价格Gemini Image 等NULL 表示使用默认';