50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
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"""add execution parent/depth columns
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Revision ID: 006_add_execution_parent_depth
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Revises: 005_persistent_user_memory
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Create Date: 2026-04-08
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"""
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects.mysql import CHAR
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revision = "006_add_execution_parent_depth"
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down_revision = "005_persistent_user_memory"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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op.add_column(
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"executions",
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sa.Column("parent_execution_id", CHAR(36), nullable=True, comment="父执行ID"),
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)
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op.add_column(
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"executions",
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sa.Column("depth", sa.Integer(), nullable=False, server_default="0", comment="执行深度（根为0）"),
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)
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op.create_foreign_key(
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"fk_executions_parent_execution_id",
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"executions",
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"executions",
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["parent_execution_id"],
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["id"],
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)
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op.create_index(
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"ix_executions_parent_execution_id",
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"executions",
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["parent_execution_id"],
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unique=False,
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)
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op.create_index("ix_executions_depth", "executions", ["depth"], unique=False)
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op.alter_column("executions", "depth", server_default=None)
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def downgrade() -> None:
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op.drop_index("ix_executions_depth", table_name="executions")
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op.drop_index("ix_executions_parent_execution_id", table_name="executions")
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op.drop_constraint("fk_executions_parent_execution_id", "executions", type_="foreignkey")
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op.drop_column("executions", "depth")
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op.drop_column("executions", "parent_execution_id")
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