From 3460d0550dac2648014e7d048279db2d3cfee29a Mon Sep 17 00:00:00 2001
From: inter <inter@qq.com>
Date: Mon, 8 Sep 2025 16:35:38 +0800
Subject: [PATCH] Add File

---
 backend/alembic/versions/029_modify_chat.py | 54 +++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 backend/alembic/versions/029_modify_chat.py

diff --git a/backend/alembic/versions/029_modify_chat.py b/backend/alembic/versions/029_modify_chat.py
new file mode 100644
index 0000000..62b8ee9
--- /dev/null
+++ b/backend/alembic/versions/029_modify_chat.py
@@ -0,0 +1,54 @@
+"""029_modify_chat
+
+Revision ID: 77d4c39ec22f
+Revises: e96b16d3daab
+Create Date: 2025-07-17 17:05:13.392973
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '77d4c39ec22f'
+down_revision = 'e96b16d3daab'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('chat', sa.Column('oid', sa.BigInteger(), nullable=True))
+    op.execute('update chat set oid = 1')
+    op.alter_column('chat', 'create_time',
+               existing_type=postgresql.TIMESTAMP(timezone=True),
+               type_=sa.DateTime(),
+               existing_nullable=True)
+    op.alter_column('chat_record', 'create_time',
+               existing_type=postgresql.TIMESTAMP(timezone=True),
+               type_=sa.DateTime(),
+               existing_nullable=True)
+    op.alter_column('chat_record', 'finish_time',
+               existing_type=postgresql.TIMESTAMP(timezone=True),
+               type_=sa.DateTime(),
+               existing_nullable=True)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('chat_record', 'finish_time',
+               existing_type=sa.DateTime(),
+               type_=postgresql.TIMESTAMP(timezone=True),
+               existing_nullable=True)
+    op.alter_column('chat_record', 'create_time',
+               existing_type=sa.DateTime(),
+               type_=postgresql.TIMESTAMP(timezone=True),
+               existing_nullable=True)
+    op.alter_column('chat', 'create_time',
+               existing_type=sa.DateTime(),
+               type_=postgresql.TIMESTAMP(timezone=True),
+               existing_nullable=True)
+    op.drop_column('chat', 'oid')
+    # ### end Alembic commands ###