54d1630c42
After do the opt of hash function, the compute of siphash in HASH_PARTITION in vdata_stream_sender Before: 1s800ms After: 800ms
203 lines
8.8 KiB
C++
203 lines
8.8 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/ColumnArray.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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#include "vec/columns/column_impl.h"
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#include "vec/columns/column_vector.h"
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#include "vec/common/arena.h"
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#include "vec/common/assert_cast.h"
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#include "vec/core/types.h"
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namespace doris::vectorized {
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/** A column of array values.
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* In memory, it is represented as one column of a nested type, whose size is equal to the sum of the sizes of all arrays,
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* and as an array of offsets in it, which allows you to get each element.
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*/
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class ColumnArray final : public COWHelper<IColumn, ColumnArray> {
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private:
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friend class COWHelper<IColumn, ColumnArray>;
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/** Create an array column with specified values and offsets. */
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ColumnArray(MutableColumnPtr&& nested_column, MutableColumnPtr&& offsets_column);
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/** Create an empty column of arrays with the type of values as in the column `nested_column` */
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explicit ColumnArray(MutableColumnPtr&& nested_column);
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ColumnArray(const ColumnArray&) = default;
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public:
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/** Create immutable column using immutable arguments. This arguments may be shared with other columns.
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* Use IColumn::mutate in order to make mutable column and mutate shared nested columns.
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*/
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using Base = COWHelper<IColumn, ColumnArray>;
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static Ptr create(const ColumnPtr& nested_column, const ColumnPtr& offsets_column) {
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return ColumnArray::create(nested_column->assume_mutable(),
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offsets_column->assume_mutable());
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}
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static Ptr create(const ColumnPtr& nested_column) {
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return ColumnArray::create(nested_column->assume_mutable());
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}
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template <typename... Args,
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typename = typename std::enable_if<IsMutableColumns<Args...>::value>::type>
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static MutablePtr create(Args&&... args) {
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return Base::create(std::forward<Args>(args)...);
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}
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/** On the index i there is an offset to the beginning of the i + 1 -th element. */
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using ColumnOffsets = ColumnVector<Offset64>;
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std::string get_name() const override;
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const char* get_family_name() const override { return "Array"; }
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bool can_be_inside_nullable() const override { return true; }
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TypeIndex get_data_type() const { return TypeIndex::Array; }
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MutableColumnPtr clone_resized(size_t size) const override;
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size_t size() const override;
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Field operator[](size_t n) const override;
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void get(size_t n, Field& res) const override;
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StringRef get_data_at(size_t n) const override;
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bool is_default_at(size_t n) const override;
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void insert_data(const char* pos, size_t length) override;
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StringRef serialize_value_into_arena(size_t n, Arena& arena, char const*& begin) const override;
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const char* deserialize_and_insert_from_arena(const char* pos) override;
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void update_hash_with_value(size_t n, SipHash& hash) const override;
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void update_hashes_with_value(std::vector<SipHash>& hashes,
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const uint8_t* __restrict null_data) const override;
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void insert_range_from(const IColumn& src, size_t start, size_t length) override;
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void insert(const Field& x) override;
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void insert_from(const IColumn& src_, size_t n) override;
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void insert_default() override;
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void pop_back(size_t n) override;
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ColumnPtr filter(const Filter& filt, ssize_t result_size_hint) const override;
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ColumnPtr permute(const Permutation& perm, size_t limit) const override;
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//ColumnPtr index(const IColumn & indexes, size_t limit) const;
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//template <typename Type> ColumnPtr index_impl(const PaddedPODArray<Type> & indexes, size_t limit) const;
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[[noreturn]] int compare_at(size_t n, size_t m, const IColumn& rhs_,
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int nan_direction_hint) const override {
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LOG(FATAL) << "compare_at not implemented";
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}
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[[noreturn]] void get_permutation(bool reverse, size_t limit, int nan_direction_hint,
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Permutation& res) const override {
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LOG(FATAL) << "get_permutation not implemented";
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}
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void reserve(size_t n) override;
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size_t byte_size() const override;
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size_t allocated_bytes() const override;
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void protect() override;
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ColumnPtr replicate(const Offsets& replicate_offsets) const override;
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void replicate(const uint32_t* counts, size_t target_size, IColumn& column) const override;
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ColumnPtr convert_to_full_column_if_const() const override;
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void get_extremes(Field& min, Field& max) const override {
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LOG(FATAL) << "get_extremes not implemented";
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}
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/** More efficient methods of manipulation */
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IColumn& get_data() { return *data; }
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const IColumn& get_data() const { return *data; }
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IColumn& get_offsets_column() { return *offsets; }
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const IColumn& get_offsets_column() const { return *offsets; }
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Offsets64& ALWAYS_INLINE get_offsets() {
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return assert_cast<ColumnOffsets&>(*offsets).get_data();
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}
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const Offsets64& ALWAYS_INLINE get_offsets() const {
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return assert_cast<const ColumnOffsets&>(*offsets).get_data();
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}
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const ColumnPtr& get_data_ptr() const { return data; }
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ColumnPtr& get_data_ptr() { return data; }
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const ColumnPtr& get_offsets_ptr() const { return offsets; }
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ColumnPtr& get_offsets_ptr() { return offsets; }
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MutableColumns scatter(ColumnIndex num_columns, const Selector& selector) const override {
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return scatter_impl<ColumnArray>(num_columns, selector);
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}
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void append_data_by_selector(MutableColumnPtr& res,
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const IColumn::Selector& selector) const override {
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return append_data_by_selector_impl<ColumnArray>(res, selector);
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}
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void for_each_subcolumn(ColumnCallback callback) override {
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callback(offsets);
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callback(data);
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}
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void insert_indices_from(const IColumn& src, const int* indices_begin,
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const int* indices_end) override;
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void replace_column_data(const IColumn&, size_t row, size_t self_row = 0) override {
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LOG(FATAL) << "replace_column_data not implemented";
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}
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void replace_column_data_default(size_t self_row = 0) override {
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LOG(FATAL) << "replace_column_data_default not implemented";
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}
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void clear() override {
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data->clear();
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offsets->clear();
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}
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private:
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WrappedPtr data;
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WrappedPtr offsets;
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size_t ALWAYS_INLINE offset_at(ssize_t i) const { return get_offsets()[i - 1]; }
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size_t ALWAYS_INLINE size_at(ssize_t i) const {
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return get_offsets()[i] - get_offsets()[i - 1];
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}
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/// Multiply values if the nested column is ColumnVector<T>.
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template <typename T>
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ColumnPtr replicate_number(const Offsets& replicate_offsets) const;
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/// Multiply the values if the nested column is ColumnString. The code is too complicated.
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ColumnPtr replicate_string(const Offsets& replicate_offsets) const;
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/** Non-constant arrays of constant values are quite rare.
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* Most functions can not work with them, and does not create such columns as a result.
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* An exception is the function `replicate` (see FunctionsMiscellaneous.h), which has service meaning for the implementation of lambda functions.
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* Only for its sake is the implementation of the `replicate` method for ColumnArray(ColumnConst).
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*/
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ColumnPtr replicate_const(const Offsets& replicate_offsets) const;
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/** The following is done by simply replicating of nested columns.
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*/
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ColumnPtr replicate_nullable(const Offsets& replicate_offsets) const;
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ColumnPtr replicate_generic(const Offsets& replicate_offsets) const;
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/// Specializations for the filter function.
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template <typename T>
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ColumnPtr filter_number(const Filter& filt, ssize_t result_size_hint) const;
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ColumnPtr filter_string(const Filter& filt, ssize_t result_size_hint) const;
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ColumnPtr filter_nullable(const Filter& filt, ssize_t result_size_hint) const;
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ColumnPtr filter_generic(const Filter& filt, ssize_t result_size_hint) const;
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};
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} // namespace doris::vectorized
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