mirror of
https://github.com/fawney19/Aether.git
synced 2026-01-03 00:02:28 +08:00
03ad16ea8a
迁移脚本修复: - 移除 AUTOCOMMIT 模式，改为在同一事务中创建索引 - 分别检查每个索引是否存在，只创建缺失的索引 - 修复全新安装时 AUTOCOMMIT 连接看不到未提交表的问题 (#46) 统计回填改进: - 分别检查 StatsDaily 和 StatsDailyModel 的缺失日期 - 只回填实际缺失的数据而非连续区间 - 添加失败统计计数和 rollback 错误日志
66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
"""add usage table composite indexes for query optimization
|
|
|
|
Revision ID: b2c3d4e5f6g7
|
|
Revises: a1b2c3d4e5f6
|
|
Create Date: 2025-12-20 15:00:00.000000+00:00
|
|
|
|
"""
|
|
from alembic import op
|
|
from sqlalchemy import text
|
|
|
|
# revision identifiers, used by Alembic.
|
|
revision = 'b2c3d4e5f6g7'
|
|
down_revision = 'a1b2c3d4e5f6'
|
|
branch_labels = None
|
|
depends_on = None
|
|
|
|
|
|
def upgrade() -> None:
|
|
"""为 usage 表添加复合索引以优化常见查询
|
|
|
|
注意：这些索引已经在 baseline 迁移中创建。
|
|
此迁移仅用于从旧版本升级的场景，新安装会跳过。
|
|
"""
|
|
conn = op.get_bind()
|
|
|
|
# 检查 usage 表是否存在
|
|
result = conn.execute(text(
|
|
"SELECT EXISTS (SELECT FROM information_schema.tables WHERE table_name = 'usage')"
|
|
))
|
|
if not result.scalar():
|
|
# 表不存在，跳过
|
|
return
|
|
|
|
# 定义需要创建的索引
|
|
indexes = [
|
|
("idx_usage_user_created", "ON usage (user_id, created_at)"),
|
|
("idx_usage_apikey_created", "ON usage (api_key_id, created_at)"),
|
|
("idx_usage_provider_model_created", "ON usage (provider, model, created_at)"),
|
|
]
|
|
|
|
# 分别检查并创建每个索引
|
|
for index_name, index_def in indexes:
|
|
result = conn.execute(text(
|
|
f"SELECT EXISTS (SELECT 1 FROM pg_indexes WHERE indexname = '{index_name}')"
|
|
))
|
|
if result.scalar():
|
|
continue # 索引已存在，跳过
|
|
|
|
conn.execute(text(f"CREATE INDEX {index_name} {index_def}"))
|
|
|
|
|
|
def downgrade() -> None:
|
|
"""删除复合索引"""
|
|
conn = op.get_bind()
|
|
|
|
# 使用 IF EXISTS 避免索引不存在时报错
|
|
conn.execute(text(
|
|
"DROP INDEX IF EXISTS idx_usage_provider_model_created"
|
|
))
|
|
conn.execute(text(
|
|
"DROP INDEX IF EXISTS idx_usage_apikey_created"
|
|
))
|
|
conn.execute(text(
|
|
"DROP INDEX IF EXISTS idx_usage_user_created"
|
|
))
|