thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-22 15:42:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

Clean up projection inside storage snapshot

Browse Source
This commit is contained in:
Amos Bird 2024-07-13 09:25:52 +08:00
parent 581e3e2f86
commit 985e8ec15e
No known key found for this signature in database
GPG Key ID: 80D430DCBECFEDB4
13 changed files with 40 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/Analyzer/Passes/ShardNumColumnToFunctionPass.cpp
View File

@ -46,7 +46,7 @@ public:
return;
const auto & storage_snapshot = table_node ? table_node->getStorageSnapshot() : table_function_node->getStorageSnapshot();
if (!storage->isVirtualColumn(column.name, storage_snapshot->getMetadataForQuery()))
if (!storage->isVirtualColumn(column.name, storage_snapshot->metadata))
return;
auto function_node = std::make_shared<FunctionNode>("shardNum");

3
src/Interpreters/TreeRewriter.cpp
View File

@ -1158,7 +1158,8 @@ bool TreeRewriterResult::collectUsedColumns(const ASTPtr & query, bool is_select
}
}
has_virtual_shard_num = is_remote_storage && storage->isVirtualColumn("_shard_num", storage_snapshot->getMetadataForQuery()) && virtuals->has("_shard_num");
has_virtual_shard_num
= is_remote_storage && storage->isVirtualColumn("_shard_num", storage_snapshot->metadata) && virtuals->has("_shard_num");
}
/// Collect missed object subcolumns

6
src/Planner/PlannerJoinTree.cpp
View File

@ -417,20 +417,20 @@ void updatePrewhereOutputsIfNeeded(SelectQueryInfo & table_expression_query_info
/// We evaluate sampling for Merge lazily so we need to get all the columns
if (storage_snapshot->storage.getName() == "Merge")
{
const auto columns = storage_snapshot->getMetadataForQuery()->getColumns().getAll();
const auto columns = storage_snapshot->metadata->getColumns().getAll();
for (const auto & column : columns)
required_columns.insert(column.name);
}
else
{
auto columns_required_for_sampling = storage_snapshot->getMetadataForQuery()->getColumnsRequiredForSampling();
auto columns_required_for_sampling = storage_snapshot->metadata->getColumnsRequiredForSampling();
required_columns.insert(columns_required_for_sampling.begin(), columns_required_for_sampling.end());
}
}
if (table_expression_modifiers->hasFinal())
{
auto columns_required_for_final = storage_snapshot->getMetadataForQuery()->getColumnsRequiredForFinal();
auto columns_required_for_final = storage_snapshot->metadata->getColumnsRequiredForFinal();
required_columns.insert(columns_required_for_final.begin(), columns_required_for_final.end());
}
}

4
src/Processors/QueryPlan/Optimizations/optimizeUseAggregateProjection.cpp
View File

@ -757,9 +757,7 @@ std::optional<String> optimizeUseAggregateProjections(QueryPlan::Node & node, Qu
else
{
auto storage_snapshot = reading->getStorageSnapshot();
auto proj_snapshot = std::make_shared<StorageSnapshot>(storage_snapshot->storage, storage_snapshot->metadata);
proj_snapshot->addProjection(best_candidate->projection);
auto proj_snapshot = std::make_shared<StorageSnapshot>(storage_snapshot->storage, best_candidate->projection->metadata);
auto projection_query_info = query_info;
projection_query_info.prewhere_info = nullptr;
projection_query_info.filter_actions_dag = nullptr;

4
src/Processors/QueryPlan/Optimizations/optimizeUseNormalProjection.cpp
View File

@ -193,9 +193,7 @@ std::optional<String> optimizeUseNormalProjections(Stack & stack, QueryPlan::Nod
}
auto storage_snapshot = reading->getStorageSnapshot();
auto proj_snapshot = std::make_shared<StorageSnapshot>(storage_snapshot->storage, storage_snapshot->metadata);
proj_snapshot->addProjection(best_candidate->projection);
auto proj_snapshot = std::make_shared<StorageSnapshot>(storage_snapshot->storage, best_candidate->projection->metadata);
auto query_info_copy = query_info;
query_info_copy.prewhere_info = nullptr;

49
src/Processors/QueryPlan/ReadFromMergeTree.cpp
View File

@ -283,7 +283,6 @@ ReadFromMergeTree::ReadFromMergeTree(
, all_column_names(std::move(all_column_names_))
, data(data_)
, actions_settings(ExpressionActionsSettings::fromContext(context_))
, metadata_for_reading(storage_snapshot->getMetadataForQuery())
, block_size{
.max_block_size_rows = max_block_size_,
.preferred_block_size_bytes = context->getSettingsRef().preferred_block_size_bytes,
@ -325,7 +324,7 @@ ReadFromMergeTree::ReadFromMergeTree(
updateSortDescriptionForOutputStream(
*output_stream,
storage_snapshot->getMetadataForQuery()->getSortingKeyColumns(),
storage_snapshot->metadata->getSortingKeyColumns(),
getSortDirection(),
query_info.input_order_info,
prewhere_info,
@ -780,7 +779,7 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreams(RangesInDataParts && parts_
Names in_order_column_names_to_read(column_names);
/// Add columns needed to calculate the sorting expression
for (const auto & column_name : metadata_for_reading->getColumnsRequiredForSortingKey())
for (const auto & column_name : storage_snapshot->metadata->getColumnsRequiredForSortingKey())
{
if (column_names_set.contains(column_name))
continue;
@ -800,10 +799,10 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreams(RangesInDataParts && parts_
info.use_uncompressed_cache);
};
auto sorting_expr = metadata_for_reading->getSortingKey().expression;
auto sorting_expr = storage_snapshot->metadata->getSortingKey().expression;
SplitPartsWithRangesByPrimaryKeyResult split_ranges_result = splitPartsWithRangesByPrimaryKey(
metadata_for_reading->getPrimaryKey(),
storage_snapshot->metadata->getPrimaryKey(),
std::move(sorting_expr),
std::move(parts_with_ranges),
num_streams,
@ -881,7 +880,7 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsWithOrder(
if (prewhere_info)
{
NameSet sorting_columns;
for (const auto & column : metadata_for_reading->getSortingKey().expression->getRequiredColumnsWithTypes())
for (const auto & column : storage_snapshot->metadata->getSortingKey().expression->getRequiredColumnsWithTypes())
sorting_columns.insert(column.name);
have_input_columns_removed_after_prewhere = restorePrewhereInputs(*prewhere_info, sorting_columns);
@ -1036,12 +1035,12 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsWithOrder(
if (need_preliminary_merge || output_each_partition_through_separate_port)
{
size_t prefix_size = input_order_info->used_prefix_of_sorting_key_size;
auto order_key_prefix_ast = metadata_for_reading->getSortingKey().expression_list_ast->clone();
auto order_key_prefix_ast = storage_snapshot->metadata->getSortingKey().expression_list_ast->clone();
order_key_prefix_ast->children.resize(prefix_size);
auto syntax_result = TreeRewriter(context).analyze(order_key_prefix_ast, metadata_for_reading->getColumns().getAllPhysical());
auto syntax_result = TreeRewriter(context).analyze(order_key_prefix_ast, storage_snapshot->metadata->getColumns().getAllPhysical());
auto sorting_key_prefix_expr = ExpressionAnalyzer(order_key_prefix_ast, syntax_result, context).getActionsDAG(false);
const auto & sorting_columns = metadata_for_reading->getSortingKey().column_names;
const auto & sorting_columns = storage_snapshot->metadata->getSortingKey().column_names;
SortDescription sort_description;
sort_description.compile_sort_description = settings.compile_sort_description;
@ -1148,7 +1147,7 @@ bool ReadFromMergeTree::doNotMergePartsAcrossPartitionsFinal() const
if (settings.do_not_merge_across_partitions_select_final.changed)
return settings.do_not_merge_across_partitions_select_final;
if (!metadata_for_reading->hasPrimaryKey() || !metadata_for_reading->hasPartitionKey())
if (!storage_snapshot->metadata->hasPrimaryKey() || !storage_snapshot->metadata->hasPartitionKey())
return false;
/** To avoid merging parts across partitions we want result of partition key expression for
@ -1158,11 +1157,11 @@ bool ReadFromMergeTree::doNotMergePartsAcrossPartitionsFinal() const
* in primary key, then for same primary key column values, result of partition key expression
* will be the same.
*/
const auto & partition_key_expression = metadata_for_reading->getPartitionKey().expression;
const auto & partition_key_expression = storage_snapshot->metadata->getPartitionKey().expression;
if (partition_key_expression->getActionsDAG().hasNonDeterministic())
return false;
const auto & primary_key_columns = metadata_for_reading->getPrimaryKey().column_names;
const auto & primary_key_columns = storage_snapshot->metadata->getPrimaryKey().column_names;
NameSet primary_key_columns_set(primary_key_columns.begin(), primary_key_columns.end());
const auto & partition_key_required_columns = partition_key_expression->getRequiredColumns();
@ -1215,12 +1214,12 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsFinal(
/// we will store lonely parts with level > 0 to use parallel select on them.
RangesInDataParts non_intersecting_parts_by_primary_key;
auto sorting_expr = metadata_for_reading->getSortingKey().expression;
auto sorting_expr = storage_snapshot->metadata->getSortingKey().expression;
if (prewhere_info)
{
NameSet sorting_columns;
for (const auto & column : metadata_for_reading->getSortingKey().expression->getRequiredColumnsWithTypes())
for (const auto & column : storage_snapshot->metadata->getSortingKey().expression->getRequiredColumnsWithTypes())
sorting_columns.insert(column.name);
restorePrewhereInputs(*prewhere_info, sorting_columns);
}
@ -1251,7 +1250,7 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsFinal(
if (new_parts.empty())
continue;
if (num_streams > 1 && metadata_for_reading->hasPrimaryKey())
if (num_streams > 1 && storage_snapshot->metadata->hasPrimaryKey())
{
// Let's split parts into non intersecting parts ranges and layers to ensure data parallelism of FINAL.
auto in_order_reading_step_getter = [this, &column_names, &info](auto parts)
@ -1271,7 +1270,7 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsFinal(
data.merging_params.is_deleted_column.empty() && !reader_settings.read_in_order;
SplitPartsWithRangesByPrimaryKeyResult split_ranges_result = splitPartsWithRangesByPrimaryKey(
metadata_for_reading->getPrimaryKey(),
storage_snapshot->metadata->getPrimaryKey(),
sorting_expr,
std::move(new_parts),
num_streams,
@ -1303,7 +1302,7 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsFinal(
if (pipes.empty())
continue;
Names sort_columns = metadata_for_reading->getSortingKeyColumns();
Names sort_columns = storage_snapshot->metadata->getSortingKeyColumns();
SortDescription sort_description;
sort_description.compile_sort_description = settings.compile_sort_description;
sort_description.min_count_to_compile_sort_description = settings.min_count_to_compile_sort_description;
@ -1311,7 +1310,7 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsFinal(
size_t sort_columns_size = sort_columns.size();
sort_description.reserve(sort_columns_size);
Names partition_key_columns = metadata_for_reading->getPartitionKey().column_names;
Names partition_key_columns = storage_snapshot->metadata->getPartitionKey().column_names;
for (size_t i = 0; i < sort_columns_size; ++i)
sort_description.emplace_back(sort_columns[i], 1, 1);
@ -1368,7 +1367,7 @@ ReadFromMergeTree::AnalysisResultPtr ReadFromMergeTree::selectRangesToRead(
return selectRangesToRead(
std::move(parts),
std::move(alter_conversions),
metadata_for_reading,
storage_snapshot->metadata,
query_info,
context,
requested_num_streams,
@ -1532,7 +1531,7 @@ void ReadFromMergeTree::applyFilters(ActionDAGNodes added_filter_nodes)
prepared_parts,
context,
query_info,
metadata_for_reading);
storage_snapshot->metadata);
}
}
@ -1701,7 +1700,7 @@ bool ReadFromMergeTree::requestReadingInOrder(size_t prefix_size, int direction,
/// update sort info for output stream
SortDescription sort_description;
const Names & sorting_key_columns = metadata_for_reading->getSortingKeyColumns();
const Names & sorting_key_columns = storage_snapshot->metadata->getSortingKeyColumns();
const Block & header = output_stream->header;
const int sort_direction = getSortDirection();
for (const auto & column_name : sorting_key_columns)
@ -1743,7 +1742,7 @@ void ReadFromMergeTree::updatePrewhereInfo(const PrewhereInfoPtr & prewhere_info
updateSortDescriptionForOutputStream(
*output_stream,
storage_snapshot->getMetadataForQuery()->getSortingKeyColumns(),
storage_snapshot->metadata->getSortingKeyColumns(),
getSortDirection(),
query_info.input_order_info,
prewhere_info,
@ -1869,7 +1868,7 @@ Pipe ReadFromMergeTree::spreadMarkRanges(
throw Exception(ErrorCodes::LOGICAL_ERROR, "Optimization isn't supposed to be used for queries with final");
/// Add columns needed to calculate the sorting expression and the sign.
for (const auto & column : metadata_for_reading->getColumnsRequiredForSortingKey())
for (const auto & column : storage_snapshot->metadata->getColumnsRequiredForSortingKey())
{
if (!names.contains(column))
{
@ -1963,10 +1962,6 @@ void ReadFromMergeTree::initializePipeline(QueryPipelineBuilder & pipeline, cons
fmt::format("{}.{}", data.getStorageID().getFullNameNotQuoted(), part.data_part->info.partition_id));
}
context->getQueryContext()->addQueryAccessInfo(partition_names);
if (storage_snapshot->projection)
context->getQueryContext()->addQueryAccessInfo(
Context::QualifiedProjectionName{.storage_id = data.getStorageID(), .projection_name = storage_snapshot->projection->name});
}
ProfileEvents::increment(ProfileEvents::SelectedParts, result.selected_parts);

4
src/Processors/QueryPlan/ReadFromMergeTree.h
View File

@ -171,7 +171,7 @@ public:
AnalysisResultPtr selectRangesToRead(bool find_exact_ranges = false) const;
StorageMetadataPtr getStorageMetadata() const { return metadata_for_reading; }
StorageMetadataPtr getStorageMetadata() const { return storage_snapshot->metadata; }
/// Returns `false` if requested reading cannot be performed.
bool requestReadingInOrder(size_t prefix_size, int direction, size_t limit);
@ -216,8 +216,6 @@ private:
const MergeTreeData & data;
ExpressionActionsSettings actions_settings;
StorageMetadataPtr metadata_for_reading;
const MergeTreeReadTask::BlockSizeParams block_size;
size_t requested_num_streams;

2
src/Storages/MergeTree/IMergeTreeReader.cpp
View File

@ -75,7 +75,7 @@ void IMergeTreeReader::fillVirtualColumns(Columns & columns, size_t rows) const
throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Filling of virtual columns is supported only for LoadedMergeTreeDataPartInfoForReader");
const auto & data_part = loaded_part_info->getDataPart();
const auto & storage_columns = storage_snapshot->getMetadataForQuery()->getColumns();
const auto & storage_columns = storage_snapshot->metadata->getColumns();
const auto & virtual_columns = storage_snapshot->virtual_columns;
auto it = requested_columns.begin();

3
src/Storages/MergeTree/MergeTreeBlockReadUtils.cpp
View File

@ -71,8 +71,7 @@ bool injectRequiredColumnsRecursively(
/// Column doesn't have default value and don't exist in part
/// don't need to add to required set.
auto metadata_snapshot = storage_snapshot->getMetadataForQuery();
const auto column_default = metadata_snapshot->getColumns().getDefault(column_name);
const auto column_default = storage_snapshot->metadata->getColumns().getDefault(column_name);
if (!column_default)
return false;

7
src/Storages/MergeTree/MergeTreeData.cpp
View File

@ -7137,12 +7137,7 @@ UInt64 MergeTreeData::estimateNumberOfRowsToRead(
MergeTreeDataSelectExecutor reader(*this);
auto result_ptr = reader.estimateNumMarksToRead(
parts,
storage_snapshot->getMetadataForQuery()->getColumns().getAll().getNames(),
storage_snapshot->metadata,
query_info,
query_context,
query_context->getSettingsRef().max_threads);
parts, {}, storage_snapshot->metadata, query_info, query_context, query_context->getSettingsRef().max_threads);
UInt64 total_rows = result_ptr->selected_rows;
if (query_info.trivial_limit > 0 && query_info.trivial_limit < total_rows)

2
src/Storages/StorageMerge.cpp
View File

@ -602,7 +602,7 @@ std::vector<ReadFromMerge::ChildPlan> ReadFromMerge::createChildrenPlans(SelectQ
ASTPtr required_columns_expr_list = std::make_shared<ASTExpressionList>();
ASTPtr column_expr;
auto sample_block = merge_storage_snapshot->getMetadataForQuery()->getSampleBlock();
auto sample_block = merge_storage_snapshot->metadata->getSampleBlock();
for (const auto & column : real_column_names)
{

11
src/Storages/StorageSnapshot.cpp
View File

@ -63,7 +63,6 @@ std::shared_ptr<StorageSnapshot> StorageSnapshot::clone(DataPtr data_) const
{
auto res = std::make_shared<StorageSnapshot>(storage, metadata, object_columns);
res->projection = projection;
res->data = std::move(data_);
return res;
@ -79,7 +78,7 @@ ColumnsDescription StorageSnapshot::getAllColumnsDescription() const
NamesAndTypesList StorageSnapshot::getColumns(const GetColumnsOptions & options) const
{
auto all_columns = getMetadataForQuery()->getColumns().get(options);
auto all_columns = metadata->getColumns().get(options);
if (options.with_extended_objects)
extendObjectColumns(all_columns, object_columns, options.with_subcolumns);
@ -113,7 +112,7 @@ NamesAndTypesList StorageSnapshot::getColumnsByNames(const GetColumnsOptions & o
std::optional<NameAndTypePair> StorageSnapshot::tryGetColumn(const GetColumnsOptions & options, const String & column_name) const
{
const auto & columns = getMetadataForQuery()->getColumns();
const auto & columns = metadata->getColumns();
auto column = columns.tryGetColumn(options, column_name);
if (column && (!column->type->hasDynamicSubcolumnsDeprecated() || !options.with_extended_objects))
return column;
@ -189,7 +188,7 @@ Block StorageSnapshot::getSampleBlockForColumns(const Names & column_names) cons
{
Block res;
const auto & columns = getMetadataForQuery()->getColumns();
const auto & columns = metadata->getColumns();
for (const auto & column_name : column_names)
{
auto column = columns.tryGetColumnOrSubcolumn(GetColumnsOptions::All, column_name);
@ -221,7 +220,7 @@ Block StorageSnapshot::getSampleBlockForColumns(const Names & column_names) cons
ColumnsDescription StorageSnapshot::getDescriptionForColumns(const Names & column_names) const
{
ColumnsDescription res;
const auto & columns = getMetadataForQuery()->getColumns();
const auto & columns = metadata->getColumns();
for (const auto & name : column_names)
{
auto column = columns.tryGetColumnOrSubcolumnDescription(GetColumnsOptions::All, name);
@ -257,7 +256,7 @@ namespace
void StorageSnapshot::check(const Names & column_names) const
{
const auto & columns = getMetadataForQuery()->getColumns();
const auto & columns = metadata->getColumns();
auto options = GetColumnsOptions(GetColumnsOptions::AllPhysical).withSubcolumns();
if (column_names.empty())

8
src/Storages/StorageSnapshot.h
View File

@ -30,9 +30,6 @@ struct StorageSnapshot
using DataPtr = std::unique_ptr<Data>;
DataPtr data;
/// Projection that is used in query.
mutable const ProjectionDescription * projection = nullptr;
StorageSnapshot(
const IStorage & storage_,
StorageMetadataPtr metadata_);
@ -82,11 +79,6 @@ struct StorageSnapshot
void check(const Names & column_names) const;
DataTypePtr getConcreteType(const String & column_name) const;
void addProjection(const ProjectionDescription * projection_) const { projection = projection_; }
/// If we have a projection then we should use its metadata.
StorageMetadataPtr getMetadataForQuery() const { return projection ? projection->metadata : metadata; }
};
using StorageSnapshotPtr = std::shared_ptr<StorageSnapshot>;