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OpenHands/enterprise/migrations/versions/061_create_experiment_assignments_table.py
2025-09-04 15:44:54 -04:00

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1.6 KiB
Python

"""Create experiment assignments table
Revision ID: 061
Revises: 060
Create Date: 2025-07-29
This migration creates a table to track experiment assignments for conversations.
Each row represents one experiment assignment with experiment_name and variant columns.
"""
import sqlalchemy as sa
from alembic import op
# revision identifiers, used by Alembic.
revision = '061'
down_revision = '060'
branch_labels = None
depends_on = None
def upgrade():
"""Create the experiment_assignments table."""
op.create_table(
'experiment_assignments',
sa.Column('id', sa.String(), nullable=False),
sa.Column('conversation_id', sa.String(), nullable=True),
sa.Column('experiment_name', sa.String(), nullable=False),
sa.Column('variant', sa.String(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint(
'conversation_id',
'experiment_name',
name='uq_experiment_assignments_conversation_experiment',
),
)
# Create index on conversation_id for efficient lookups
op.create_index(
'ix_experiment_assignments_conversation_id',
'experiment_assignments',
['conversation_id'],
)
def downgrade():
"""Drop the experiment_assignments table."""
op.drop_index(
'ix_experiment_assignments_conversation_id', table_name='experiment_assignments'
)
op.drop_table('experiment_assignments')