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Separate converting actions in separte source file

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This commit is contained in:
Igor Nikonov 2024-07-16 08:46:24 +00:00
parent 69c1e68359
commit 27db36cd4f
4 changed files with 45 additions and 28 deletions
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32
src/Processors/QueryPlan/ConvertingActions.cpp Normal file
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@ -0,0 +1,32 @@
#include <Processors/QueryPlan/QueryPlan.h>
#include <Interpreters/ActionsDAG.h>
#include <Processors/QueryPlan/ExpressionStep.h>
namespace DB
{
void addConvertingActions(QueryPlan & plan, const Block & header, bool has_missing_objects)
{
if (blocksHaveEqualStructure(plan.getCurrentDataStream().header, header))
return;
auto mode = has_missing_objects ? ActionsDAG::MatchColumnsMode::Position : ActionsDAG::MatchColumnsMode::Name;
auto get_converting_dag = [mode](const Block & block_, const Block & header_)
{
/// Convert header structure to expected.
/// Also we ignore constants from result and replace it with constants from header.
/// It is needed for functions like `now64()` or `randConstant()` because their values may be different.
return ActionsDAG::makeConvertingActions(
block_.getColumnsWithTypeAndName(),
header_.getColumnsWithTypeAndName(),
mode,
true);
};
auto convert_actions_dag = get_converting_dag(plan.getCurrentDataStream().header, header);
auto converting = std::make_unique<ExpressionStep>(plan.getCurrentDataStream(), convert_actions_dag);
plan.addStep(std::move(converting));
}
}

9
src/Processors/QueryPlan/ConvertingActions.h Normal file
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@ -0,0 +1,9 @@
#pragma once
namespace DB
{
class QueryPlan;
class Block;
void addConvertingActions(QueryPlan & plan, const Block & header, bool has_missing_objects);
}

27
src/Processors/QueryPlan/DistributedCreateLocalPlan.cpp
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@ -2,38 +2,13 @@
#include <Common/checkStackSize.h>
#include <Core/Settings.h>
#include <Interpreters/ActionsDAG.h>
#include <Interpreters/InterpreterSelectQuery.h>
#include <Interpreters/InterpreterSelectQueryAnalyzer.h>
#include <Processors/QueryPlan/ExpressionStep.h>
#include <Processors/QueryPlan/ConvertingActions.h>
namespace DB
{
void addConvertingActions(QueryPlan & plan, const Block & header, bool has_missing_objects)
{
if (blocksHaveEqualStructure(plan.getCurrentDataStream().header, header))
return;
auto mode = has_missing_objects ? ActionsDAG::MatchColumnsMode::Position : ActionsDAG::MatchColumnsMode::Name;
auto get_converting_dag = [mode](const Block & block_, const Block & header_)
{
/// Convert header structure to expected.
/// Also we ignore constants from result and replace it with constants from header.
/// It is needed for functions like `now64()` or `randConstant()` because their values may be different.
return ActionsDAG::makeConvertingActions(
block_.getColumnsWithTypeAndName(),
header_.getColumnsWithTypeAndName(),
mode,
true);
};
auto convert_actions_dag = get_converting_dag(plan.getCurrentDataStream().header, header);
auto converting = std::make_unique<ExpressionStep>(plan.getCurrentDataStream(), convert_actions_dag);
plan.addStep(std::move(converting));
}
std::unique_ptr<QueryPlan> createLocalPlan(
const ASTPtr & query_ast,
const Block & header,

5
src/Processors/QueryPlan/ParallelReplicasLocalPlan.cpp
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@ -6,6 +6,7 @@
#include <Interpreters/InterpreterSelectQueryAnalyzer.h>
#include <Interpreters/StorageID.h>
#include <Parsers/ASTFunction.h>
#include <Processors/QueryPlan/ConvertingActions.h>
#include <Processors/QueryPlan/ExpressionStep.h>
#include <Processors/QueryPlan/ISourceStep.h>
#include <Processors/QueryPlan/ReadFromMergeTree.h>
@ -77,8 +78,8 @@ std::unique_ptr<QueryPlan> createLocalPlanForParallelReplicas(
analyzed_result_ptr = analyzed_merge_tree->getAnalyzedResult();
}
MergeTreeAllRangesCallback all_ranges_cb
= [coordinator](InitialAllRangesAnnouncement announcement) { coordinator->handleInitialAllRangesAnnouncement(announcement); };
MergeTreeAllRangesCallback all_ranges_cb = [coordinator](InitialAllRangesAnnouncement announcement)
{ coordinator->handleInitialAllRangesAnnouncement(std::move(announcement)); };
MergeTreeReadTaskCallback read_task_cb = [coordinator](ParallelReadRequest req) -> std::optional<ParallelReadResponse>
{ return coordinator->handleRequest(std::move(req)); };