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feat: add partial indexes on conversations for app_id with created_at and updated_at (#32616)

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Novice 2026-03-05 16:53:28 +08:00 committed by GitHub
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commit c913a629df
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37
api/migrations/versions/2026_02_26_1336-e288952f2994_add_partial_indexes_on_conversations_.py Normal file
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@ -0,0 +1,37 @@
"""add partial indexes on conversations for app_id with created_at and updated_at
Revision ID: e288952f2994
Revises: fce013ca180e
Create Date: 2026-02-26 13:36:45.928922
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = 'e288952f2994'
down_revision = 'fce013ca180e'
branch_labels = None
depends_on = None
def upgrade():
with op.batch_alter_table('conversations', schema=None) as batch_op:
batch_op.create_index(
'conversation_app_created_at_idx',
['app_id', sa.literal_column('created_at DESC')],
unique=False,
postgresql_where=sa.text('is_deleted IS false'),
)
batch_op.create_index(
'conversation_app_updated_at_idx',
['app_id', sa.literal_column('updated_at DESC')],
unique=False,
postgresql_where=sa.text('is_deleted IS false'),
)
def downgrade():
with op.batch_alter_table('conversations', schema=None) as batch_op:
batch_op.drop_index('conversation_app_updated_at_idx')
batch_op.drop_index('conversation_app_created_at_idx')

12
api/models/model.py
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@ -711,6 +711,18 @@ class Conversation(Base):
__table_args__ = (
sa.PrimaryKeyConstraint("id", name="conversation_pkey"),
sa.Index("conversation_app_from_user_idx", "app_id", "from_source", "from_end_user_id"),
sa.Index(
"conversation_app_created_at_idx",
"app_id",
sa.text("created_at DESC"),
postgresql_where=sa.text("is_deleted IS false"),
),
sa.Index(
"conversation_app_updated_at_idx",
"app_id",
sa.text("updated_at DESC"),
postgresql_where=sa.text("is_deleted IS false"),
),
)
id: Mapped[str] = mapped_column(StringUUID, default=lambda: str(uuid4()))