121 lines
4.0 KiB
C++
121 lines
4.0 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 "vec/exprs/vliteral.h"
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#include <fmt/format.h>
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#include <gen_cpp/Exprs_types.h>
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#include <gen_cpp/Types_types.h>
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#include <glog/logging.h>
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#include <math.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <algorithm>
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#include <ostream>
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#include <vector>
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#include "common/exception.h"
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#include "olap/olap_common.h"
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#include "runtime/decimalv2_value.h"
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#include "runtime/define_primitive_type.h"
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#include "runtime/jsonb_value.h"
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#include "runtime/large_int_value.h"
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#include "runtime/types.h"
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#include "util/string_parser.hpp"
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#include "vec/aggregate_functions/aggregate_function.h"
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#include "vec/columns/column.h"
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#include "vec/common/string_ref.h"
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#include "vec/common/typeid_cast.h"
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#include "vec/core/block.h"
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#include "vec/core/field.h"
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#include "vec/core/types.h"
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#include "vec/data_types/data_type_decimal.h"
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#include "vec/runtime/vdatetime_value.h"
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namespace doris::vectorized {
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class VExprContext;
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void VLiteral::init(const TExprNode& node) {
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Field field;
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field = _data_type->get_field(node);
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_column_ptr = _data_type->create_column_const(1, field);
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}
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Status VLiteral::prepare(RuntimeState* state, const RowDescriptor& desc, VExprContext* context) {
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RETURN_IF_ERROR_OR_PREPARED(VExpr::prepare(state, desc, context));
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return Status::OK();
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}
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Status VLiteral::open(RuntimeState* state, VExprContext* context,
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FunctionContext::FunctionStateScope scope) {
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RETURN_IF_ERROR(VExpr::open(state, context, scope));
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return Status::OK();
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}
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Status VLiteral::execute(VExprContext* context, vectorized::Block* block, int* result_column_id) {
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// Literal expr should return least one row.
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// sometimes we just use a VLiteral without open or prepare. so can't check it at this moment
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size_t row_size = std::max(block->rows(), _column_ptr->size());
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*result_column_id = VExpr::insert_param(block, {_column_ptr, _data_type, _expr_name}, row_size);
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return Status::OK();
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}
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std::string VLiteral::value() const {
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//TODO: dcheck the equality of size with 1. then use string with size to replace the ss.
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std::stringstream out;
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for (size_t i = 0; i < _column_ptr->size(); i++) {
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if (i != 0) {
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out << ", ";
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}
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out << _data_type->to_string(*_column_ptr, i);
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}
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return out.str();
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}
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std::string VLiteral::debug_string() const {
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std::stringstream out;
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out << "VLiteral (name = " << _expr_name;
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out << ", type = " << _data_type->get_name();
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out << ", value = (" << value();
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out << "))";
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return out.str();
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}
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bool VLiteral::equals(const VExpr& other) {
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const auto* other_ptr = dynamic_cast<const VLiteral*>(&other);
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if (!other_ptr) {
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return false;
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}
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if (this->_expr_name != other_ptr->_expr_name) {
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return false;
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}
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if (this->_column_ptr->structure_equals(*other_ptr->_column_ptr)) {
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if (this->_column_ptr->size() != other_ptr->_column_ptr->size()) {
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return false;
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}
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for (size_t i = 0; i < this->_column_ptr->size(); i++) {
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if (this->_column_ptr->compare_at(i, i, *other_ptr->_column_ptr, -1) != 0) {
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return false;
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}
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}
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}
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return true;
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}
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} // namespace doris::vectorized
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