增加渠道上传预统计

backend/migrations/000034_listing_upload_source_channel.sql

@@ -0,0 +1,11 @@
+-- +goose Up
+
+ALTER TABLE listing_uploads
+  ADD COLUMN source_channel VARCHAR(32) NOT NULL DEFAULT '' COMMENT '订单来源渠道：咸鱼/淘宝/京东/QQ/微信/自定义' AFTER uploader_name,
+  ADD KEY idx_listing_uploads_source_channel (source_channel, created_at);
+
+-- +goose Down
+
+ALTER TABLE listing_uploads
+  DROP KEY idx_listing_uploads_source_channel,
+  DROP COLUMN source_channel;