101 lines
3.1 KiB
C++
101 lines
3.1 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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#include "olap/schema.h"
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#include "olap/row_block2.h"
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namespace doris {
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Schema::Schema(const Schema& other) {
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copy_from(other);
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}
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Schema& Schema::operator=(const Schema& other) {
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if (this != &other) {
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copy_from(other);
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}
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return *this;
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}
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void Schema::copy_from(const Schema& other) {
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_col_ids = other._col_ids;
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_col_offsets = other._col_offsets;
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_num_key_columns = other._num_key_columns;
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_schema_size = other._schema_size;
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_cols.resize(other._cols.size(), nullptr);
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for (auto cid : _col_ids) {
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_cols[cid] = other._cols[cid]->clone();
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}
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}
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void Schema::init_field(const std::vector<TabletColumn>& columns,
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const std::vector<ColumnId>& col_ids) {
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_cols.resize(columns.size(), nullptr);
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// we must make sure that the offset is the same with RowBlock's
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std::unordered_set<uint32_t> column_set(col_ids.begin(), col_ids.end());
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for (int cid = 0; cid < columns.size(); ++cid) {
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if (column_set.find(cid) == column_set.end()) {
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continue;
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}
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_cols[cid] = FieldFactory::create(columns[cid]);
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}
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}
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void Schema::init_field(const std::vector<const Field*>& cols,
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const std::vector<ColumnId>& col_ids) {
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_cols.resize(cols.size(), nullptr);
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// we must make sure that the offset is the same with RowBlock's
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std::unordered_set<uint32_t> column_set(col_ids.begin(), col_ids.end());
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for (int cid = 0; cid < cols.size(); ++cid) {
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if (column_set.find(cid) == column_set.end()) {
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continue;
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}
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_cols[cid] = cols[cid]->clone();
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}
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}
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void Schema::init(const std::vector<ColumnId>& col_ids,
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size_t num_key_columns) {
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_num_key_columns = num_key_columns;
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_col_ids = col_ids;
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_col_offsets.resize(_cols.size(), -1);
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// we must make sure that the offset is the same with RowBlock's
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std::unordered_set<uint32_t> column_set(_col_ids.begin(), _col_ids.end());
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size_t offset = 0;
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for (int cid = 0; cid < _cols.size(); ++cid) {
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if (column_set.find(cid) == column_set.end()) {
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continue;
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}
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_col_offsets[cid] = offset;
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// 1 for null byte
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offset += _cols[cid]->size() + 1;
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}
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_schema_size = offset;
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}
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Schema::~Schema() {
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for (auto col : _cols) {
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delete col;
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}
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}
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}
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