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from abc import abstractmethod
from typing import Generator
from .partition import PostgresPartition
class PostgresPartitioningStrategy:
"""Base class for implementing a partitioning strategy for a partitioned
table."""
@abstractmethod
def to_create(
self,
) -> Generator[PostgresPartition, None, None]:
"""Generates a list of partitions to be created."""
@abstractmethod
def to_delete(
self,
) -> Generator[PostgresPartition, None, None]:
"""Generates a list of partitions to be deleted."""
__all__ = ["PostgresPartitioningStrategy"]
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