"""慢日志模型。"""
from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey, func

from app.core.database import Base


class SlowLog(Base):
    """慢日志记录。"""
    __tablename__ = "slow_logs"

    id = Column(Integer, primary_key=True, autoincrement=True)
    instance_id = Column(Integer, ForeignKey("instances.id"), nullable=False)
    database = Column(String(100), nullable=True)
    sql_digest = Column(String(64), nullable=True)
    sql_text = Column(Text, nullable=True)
    execution_count = Column(Integer, default=1)
    avg_time_ms = Column(Integer, nullable=True)
    max_time_ms = Column(Integer, nullable=True)
    rows_examined = Column(Integer, nullable=True)
    rows_sent = Column(Integer, nullable=True)
    created_at = Column(DateTime, server_default=func.now())