| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546 | """update_dataset_model_field_null_availableRevision ID: 4bcffcd64aa4Revises: 853f9b9cd3b6Create Date: 2023-08-28 20:58:50.077056"""import sqlalchemy as safrom alembic import op# revision identifiers, used by Alembic.revision = '4bcffcd64aa4'down_revision = '853f9b9cd3b6'branch_labels = Nonedepends_on = Nonedef upgrade():    # ### commands auto generated by Alembic - please adjust! ###    with op.batch_alter_table('datasets', schema=None) as batch_op:        batch_op.alter_column('embedding_model',               existing_type=sa.VARCHAR(length=255),               nullable=True,               existing_server_default=sa.text("'text-embedding-ada-002'::character varying"))        batch_op.alter_column('embedding_model_provider',               existing_type=sa.VARCHAR(length=255),               nullable=True,               existing_server_default=sa.text("'openai'::character varying"))    # ### end Alembic commands ###def downgrade():    # ### commands auto generated by Alembic - please adjust! ###    with op.batch_alter_table('datasets', schema=None) as batch_op:        batch_op.alter_column('embedding_model_provider',               existing_type=sa.VARCHAR(length=255),               nullable=False,               existing_server_default=sa.text("'openai'::character varying"))        batch_op.alter_column('embedding_model',               existing_type=sa.VARCHAR(length=255),               nullable=False,               existing_server_default=sa.text("'text-embedding-ada-002'::character varying"))    # ### end Alembic commands ###
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