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backend/alembic/versions/20260909_01_holding_items.py

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+"""holding_items：持仓股（手动标记进「持仓」分类）
+
+Revision ID: 20260909_01
+Revises: 20260907_02
+Create Date: 2026-09-09
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "20260909_01"
+down_revision: Union[str, Sequence[str], None] = "20260907_02"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "holding_items",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=False),
+        sa.Column("ts_code", sa.String(length=12), nullable=False),
+        sa.Column("created_at", sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("user_id", "ts_code", name="uq_holding_user_code"),
+    )
+    op.create_index("ix_holding_items_user_id", "holding_items", ["user_id"])
+    op.create_index("ix_holding_items_ts_code", "holding_items", ["ts_code"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_holding_items_ts_code", table_name="holding_items")
+    op.drop_index("ix_holding_items_user_id", table_name="holding_items")
+    op.drop_table("holding_items")