feat(meituan-coupon): 采集记录头图大小/类型 + 读取侧缩放口子 + 回填脚本 (#71)

Reviewed-on: #71 Co-authored-by: chenshuobo <chenshuobo@wonderable.ai> Co-committed-by: chenshuobo <chenshuobo@wonderable.ai>
2026-06-23 21:09:10 +08:00
parent 2164155a23
commit b07ccb4bf5
6 changed files with 147 additions and 2 deletions
@@ -0,0 +1,34 @@
+"""meituan_coupon image size & type
+
+给 meituan_coupon 增加 image_size(字节)/ image_type(MIME)两列,采集时 HEAD 头图得到,
+供读取侧按图片大小决定是否拼缩放参数提速。两列均 nullable,不动存量行;下一轮全量 ETL
+upsert 自动回填,无需手动 backfill。
+
+Revision ID: meituan_coupon_image_meta
+Revises: feedback_review_fields
+Create Date: 2026-06-23 00:00:00.000000
+
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "meituan_coupon_image_meta"
+down_revision: str | Sequence[str] | None = "feedback_review_fields"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("meituan_coupon", schema=None) as batch_op:
+        batch_op.add_column(sa.Column("image_size", sa.Integer(), nullable=True))
+        batch_op.add_column(sa.Column("image_type", sa.String(length=32), nullable=True))
+
+
+def downgrade() -> None:
+    with op.batch_alter_table("meituan_coupon", schema=None) as batch_op:
+        batch_op.drop_column("image_type")
+        batch_op.drop_column("image_size")