8d7a9fd21b
make vexprecontext,vexpr,function,query context,runtimestate thread safe. --------- Co-authored-by: yiguolei <yiguolei@gmail.com>
112 lines
4.4 KiB
C++
112 lines
4.4 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/vschema_change_expr.h"
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#include <fmt/format.h>
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#include <glog/logging.h>
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#include <memory>
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#include <vector>
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#include "runtime/descriptors.h"
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#include "runtime/runtime_state.h"
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#include "vec/columns/column.h"
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#include "vec/columns/column_object.h"
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#include "vec/common/assert_cast.h"
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#include "vec/common/schema_util.h"
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#include "vec/core/block.h"
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#include "vec/core/column_with_type_and_name.h"
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#include "vec/core/columns_with_type_and_name.h"
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#include "vec/json/path_in_data.h"
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namespace doris {
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namespace vectorized {
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class VExprContext;
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} // namespace vectorized
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} // namespace doris
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namespace doris::vectorized {
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Status VSchemaChangeExpr::prepare(doris::RuntimeState* state, const doris::RowDescriptor& desc,
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VExprContext* context) {
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RETURN_IF_ERROR_OR_PREPARED(VExpr::prepare(state, desc, context));
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// DCHECK_EQ(_children.size(), 1);
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_table_id = _tnode.schema_change_expr.table_id;
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_expr_name = fmt::format("(SCHEMA_CHANGE {})", "VARIANT");
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_slot_id = _tnode.slot_ref.slot_id;
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const SlotDescriptor* slot_desc = state->desc_tbl().get_slot_descriptor(_slot_id);
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if (slot_desc == nullptr) {
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return Status::InternalError("couldn't resolve slot descriptor {}", _slot_id);
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}
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_column_id = desc.get_column_id(_slot_id);
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if (_column_id < 0) {
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return Status::InternalError(
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"VSlotRef have invalid slot id: {}, desc: {}, slot_desc: {}, desc_tbl: {}",
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*"VARIANT", _slot_id, desc.debug_string(), slot_desc->debug_string(),
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state->desc_tbl().debug_string());
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}
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return Status::OK();
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}
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const std::string& VSchemaChangeExpr::expr_name() const {
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return _expr_name;
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}
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Status VSchemaChangeExpr::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 Status::OK();
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}
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void VSchemaChangeExpr::close(doris::RuntimeState* state, VExprContext* context,
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FunctionContext::FunctionStateScope scope) {
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VExpr::close(state, context, scope);
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}
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Status VSchemaChangeExpr::execute(VExprContext* context, doris::vectorized::Block* block,
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int* result_column_id) {
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// Send schema change RPC
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ColumnObject& object_column = *assert_cast<ColumnObject*>(
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block->get_by_position(_column_id).column->assume_mutable().get());
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CHECK(object_column.is_finalized());
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std::unique_ptr<vectorized::schema_util::FullBaseSchemaView> full_base_schema_view =
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vectorized::schema_util::FullBaseSchemaView::create_unique();
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full_base_schema_view->table_id = _table_id;
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vectorized::ColumnsWithTypeAndName cols_with_type_name;
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cols_with_type_name.reserve(object_column.get_subcolumns().size());
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for (auto& entry : object_column.get_subcolumns()) {
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cols_with_type_name.push_back(ColumnWithTypeAndName {entry->data.get_finalized_column_ptr(),
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entry->data.get_least_common_type(),
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entry->path.get_path()});
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}
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if (!cols_with_type_name.empty()) {
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// duplicated columns in full_base_schema_view will be idempotent
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RETURN_IF_ERROR(vectorized::schema_util::send_add_columns_rpc(cols_with_type_name,
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full_base_schema_view.get()));
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}
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*result_column_id = _column_id;
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return Status::OK();
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}
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std::string VSchemaChangeExpr::debug_string() const {
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return _expr_name;
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}
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} // namespace doris::vectorized
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