20 lines
483 B
Python
20 lines
483 B
Python
# -*- coding: utf-8 -*-
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"""数据加载器基类"""
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class BaseLoader:
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"""数据加载器基类"""
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def __init__(self, db_ops):
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self.db = db_ops
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def upsert(self, records: list) -> tuple:
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"""
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执行UPSERT操作
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返回: (inserted_count, updated_count, skipped_count)
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"""
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raise NotImplementedError("子类需实现 upsert 方法")
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def _batch_size(self) -> int:
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"""批次大小"""
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return 1000
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