cf5d194fe1
In old Doris version string offsets are 32bit, but it is not enough for Array type. If we change string offsets from 32bit to 64bit, there will be problem if we upgrade BE one by one. Because at the same time 32bit Offsets and 64 bit Offsets String will exist at the same time. As a result, we separate the Codes for Array Offsets. Co-authored-by: cambyzju <zhuxiaoli01@baidu.com>
55 lines
2.5 KiB
C++
55 lines
2.5 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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// This file is copied from
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// https://github.com/ClickHouse/ClickHouse/blob/master/src/Columns/ColumnsCommon.h
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// and modified by Doris
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#pragma once
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#include "vec/columns/column.h"
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/// Common helper methods for implementation of different columns.
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namespace doris::vectorized {
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/// Counts how many bytes of `filt` are greater than zero.
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size_t count_bytes_in_filter(const IColumn::Filter& filt);
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/// Returns vector with num_columns elements. vector[i] is the count of i values in selector.
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/// Selector must contain values from 0 to num_columns - 1. NOTE: this is not checked.
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std::vector<size_t> count_columns_size_in_selector(IColumn::ColumnIndex num_columns,
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const IColumn::Selector& selector);
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/// Returns true, if the memory contains only zeros.
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bool memory_is_zero(const void* data, size_t size);
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bool memory_is_byte(const void* data, size_t size, uint8_t byte);
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/// The general implementation of `filter` function for ColumnArray and ColumnString.
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template <typename T, typename OT>
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void filter_arrays_impl(const PaddedPODArray<T>& src_elems, const PaddedPODArray<OT>& src_offsets,
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PaddedPODArray<T>& res_elems, PaddedPODArray<OT>& res_offsets,
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const IColumn::Filter& filt, ssize_t result_size_hint);
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/// Same as above, but not fills res_offsets.
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template <typename T, typename OT>
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void filter_arrays_impl_only_data(const PaddedPODArray<T>& src_elems,
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const PaddedPODArray<OT>& src_offsets,
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PaddedPODArray<T>& res_elems, const IColumn::Filter& filt,
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ssize_t result_size_hint);
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} // namespace doris::vectorized
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