8b10a1a3f7
The column id check in VSlotRef::execute function before is too strict for fuzzy test to continuously produce random query. Temporarily loosen the check logic. Moreover, there exists some careless call to VExpr::get_const_col, it might return a nullptr but not every function call checks if it's valid. It's an underlying problem.
114 lines
4.5 KiB
C++
114 lines
4.5 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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#include "vec/exprs/vcast_expr.h"
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#include <string_view>
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#include "common/status.h"
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#include "vec/core/field.h"
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#include "vec/data_types/data_type_factory.hpp"
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#include "vec/exprs/vexpr.h"
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#include "vec/functions/simple_function_factory.h"
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namespace doris::vectorized {
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doris::Status VCastExpr::prepare(doris::RuntimeState* state, const doris::RowDescriptor& desc,
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VExprContext* context) {
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RETURN_IF_ERROR(VExpr::prepare(state, desc, context));
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DCHECK_EQ(_children.size(), 1);
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auto child = _children[0];
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const auto& child_name = child->expr_name();
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auto child_column = child->data_type()->create_column();
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// create a const string column
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_target_data_type = _data_type;
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_target_data_type_name = DataTypeFactory::instance().get(_target_data_type);
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_cast_param_data_type = std::make_shared<DataTypeString>();
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_cast_param = _cast_param_data_type->create_column_const(1, _target_data_type_name);
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ColumnsWithTypeAndName argument_template;
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argument_template.reserve(2);
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argument_template.emplace_back(std::move(child_column), child->data_type(), child_name);
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argument_template.emplace_back(_cast_param, _cast_param_data_type, _target_data_type_name);
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_function = SimpleFunctionFactory::instance().get_function(function_name, argument_template,
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_data_type);
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if (_function == nullptr) {
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return Status::NotSupported("Function {} is not implemented", _fn.name.function_name);
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}
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VExpr::register_function_context(state, context);
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_expr_name = fmt::format("(CAST {}, TO {})", child_name, _target_data_type_name);
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return Status::OK();
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}
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doris::Status VCastExpr::open(doris::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_IF_ERROR(VExpr::init_function_context(context, scope, _function));
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return Status::OK();
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}
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void VCastExpr::close(doris::RuntimeState* state, VExprContext* context,
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FunctionContext::FunctionStateScope scope) {
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VExpr::close_function_context(context, scope, _function);
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VExpr::close(state, context, scope);
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}
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doris::Status VCastExpr::execute(VExprContext* context, doris::vectorized::Block* block,
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int* result_column_id) {
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// for each child call execute
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int column_id = 0;
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RETURN_IF_ERROR(_children[0]->execute(context, block, &column_id));
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size_t const_param_id = VExpr::insert_param(
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block, {_cast_param, _cast_param_data_type, _target_data_type_name}, block->rows());
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// call function
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size_t num_columns_without_result = block->columns();
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// prepare a column to save result
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block->insert({nullptr, _data_type, _expr_name});
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RETURN_IF_ERROR(_function->execute(context->fn_context(_fn_context_index), *block,
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{static_cast<size_t>(column_id), const_param_id},
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num_columns_without_result, block->rows(), false));
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*result_column_id = num_columns_without_result;
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return Status::OK();
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}
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const std::string& VCastExpr::expr_name() const {
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return _expr_name;
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}
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std::string VCastExpr::debug_string() const {
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std::stringstream out;
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out << "CastExpr(CAST " << _cast_param_data_type->get_name() << " to "
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<< _target_data_type->get_name() << "){";
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bool first = true;
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for (VExpr* input_expr : children()) {
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if (first) {
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first = false;
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} else {
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out << ",";
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}
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out << input_expr->debug_string();
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}
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out << "}";
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return out.str();
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}
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} // namespace doris::vectorized
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