python/iceberg/api/filtered_snapshot.py

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# to you under the Apache License, Version 2.0 (the
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#   http://www.apache.org/licenses/LICENSE-2.0
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from .expressions import Expressions
from .filterable import Filterable


class FilteredSnapshot(Filterable):

    def __init__(self, snapshot, part_filter, row_filter, columns):
        self.snapshot = snapshot
        self.part_filter = part_filter
        self.row_filter = row_filter
        self.columns = columns

    def select(self, columns):
        return FilteredSnapshot(self.snapshot, self.part_filter, self.row_filter, columns)

    def filter_partitions(self, expr):
        return FilteredSnapshot(self.snapshot, Expressions.and_(self.part_filter, expr), self.row_filter, self.columns)

    def filter_rows(self, expr):
        return FilteredSnapshot(self.snapshot, self.part_filter, Expressions.and_(self.row_filter, expr), self.columns)

    def iterator(self):
        return self.snapshot.iterator(self.part_filter, self.row_filter, self.columns)