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23 lines
586 B
C++
23 lines
586 B
C++
#pragma once
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#include <DB/Columns/IColumn.h>
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/// Common helper methods for implementation of different columns.
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namespace DB
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{
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/// Counts how many bytes of `filt` are greater than zero.
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size_t countBytesInFilter(const IColumn::Filter & filt);
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/// The general implementation of `filter` function for ColumnArray and ColumnString.
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template <typename T>
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void filterArraysImpl(
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const PaddedPODArray<T> & src_elems, const IColumn::Offsets_t & src_offsets,
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PaddedPODArray<T> & res_elems, IColumn::Offsets_t & res_offsets,
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const IColumn::Filter & filt, ssize_t result_size_hint);
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}
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