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Move all vertically possible streams to stopcondition

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This commit is contained in:
alesapin 2019-03-26 14:37:32 +03:00
parent 2d0224aab4
commit 0378400972
6 changed files with 26 additions and 20 deletions
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18
dbms/src/DataStreams/CollapsingSortedBlockInputStream.cpp
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@ -40,7 +40,7 @@ void CollapsingSortedBlockInputStream::reportIncorrectData()
}
void CollapsingSortedBlockInputStream::insertRows(MutableColumns & merged_columns, size_t & merged_rows)
void CollapsingSortedBlockInputStream::insertRows(MutableColumns & merged_columns, size_t block_size, MergeStopCondition & condition)
{
if (count_positive == 0 && count_negative == 0)
{
@ -52,7 +52,7 @@ void CollapsingSortedBlockInputStream::insertRows(MutableColumns & merged_column
{
if (count_positive <= count_negative)
{
++merged_rows;
condition.incrementRowsCountFromGranularity(block_size);
for (size_t i = 0; i < num_columns; ++i)
merged_columns[i]->insertFrom(*(*first_negative.columns)[i], first_negative.row_num);
@ -62,7 +62,7 @@ void CollapsingSortedBlockInputStream::insertRows(MutableColumns & merged_column
if (count_positive >= count_negative)
{
++merged_rows;
condition.incrementRowsCountFromGranularity(block_size);
for (size_t i = 0; i < num_columns; ++i)
merged_columns[i]->insertFrom(*(*last_positive.columns)[i], last_positive.row_num);
@ -106,12 +106,14 @@ Block CollapsingSortedBlockInputStream::readImpl()
void CollapsingSortedBlockInputStream::merge(MutableColumns & merged_columns, std::priority_queue<SortCursor> & queue)
{
size_t merged_rows = 0;
MergeStopCondition stop_condition(average_block_sizes, max_block_size);
size_t current_block_granularity;
/// Take rows in correct order and put them into `merged_columns` until the rows no more than `max_block_size`
for (; !queue.empty(); ++current_pos)
{
SortCursor current = queue.top();
current_block_granularity = current->rows;
if (current_key.empty())
setPrimaryKeyRef(current_key, current);
@ -122,7 +124,7 @@ void CollapsingSortedBlockInputStream::merge(MutableColumns & merged_columns, st
bool key_differs = next_key != current_key;
/// if there are enough rows and the last one is calculated completely
if (key_differs && merged_rows >= max_block_size)
if (key_differs && stop_condition.checkStop())
{
++blocks_written;
return;
@ -133,7 +135,7 @@ void CollapsingSortedBlockInputStream::merge(MutableColumns & merged_columns, st
if (key_differs)
{
/// We write data for the previous primary key.
insertRows(merged_columns, merged_rows);
insertRows(merged_columns, current_block_granularity, stop_condition);
current_key.swap(next_key);
@ -167,7 +169,7 @@ void CollapsingSortedBlockInputStream::merge(MutableColumns & merged_columns, st
first_negative_pos = current_pos;
}
if (!blocks_written && !merged_rows)
if (!blocks_written && stop_condition.empty())
{
setRowRef(last_negative, current);
last_negative_pos = current_pos;
@ -193,7 +195,7 @@ void CollapsingSortedBlockInputStream::merge(MutableColumns & merged_columns, st
}
/// Write data for last primary key.
insertRows(merged_columns, merged_rows);
insertRows(merged_columns, current_block_granularity, stop_condition);
finished = true;
}

6
dbms/src/DataStreams/CollapsingSortedBlockInputStream.h
View File

@ -26,8 +26,8 @@ class CollapsingSortedBlockInputStream : public MergingSortedBlockInputStream
public:
CollapsingSortedBlockInputStream(
BlockInputStreams inputs_, const SortDescription & description_,
const String & sign_column, size_t max_block_size_, WriteBuffer * out_row_sources_buf_ = nullptr)
: MergingSortedBlockInputStream(inputs_, description_, max_block_size_, 0, out_row_sources_buf_)
const String & sign_column, size_t max_block_size_, WriteBuffer * out_row_sources_buf_ = nullptr, bool average_block_sizes = false)
: MergingSortedBlockInputStream(inputs_, description_, max_block_size_, 0, out_row_sources_buf_, false, average_block_sizes)
{
sign_column_number = header.getPositionByName(sign_column);
}
@ -75,7 +75,7 @@ private:
void merge(MutableColumns & merged_columns, std::priority_queue<SortCursor> & queue);
/// Output to result rows for the current primary key.
void insertRows(MutableColumns & merged_columns, size_t & merged_rows);
void insertRows(MutableColumns & merged_columns, size_t block_size, MergeStopCondition & condition);
void reportIncorrectData();
};

4
dbms/src/DataStreams/MergingSortedBlockInputStream.h
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@ -134,6 +134,10 @@ protected:
bool checkStop(size_t total_rows) const;
bool checkStop() const;
bool empty() const
{
return blocks_granularity.empty();
}
};

12
dbms/src/DataStreams/VersionedCollapsingSortedBlockInputStream.cpp
View File

@ -16,8 +16,8 @@ namespace ErrorCodes
VersionedCollapsingSortedBlockInputStream::VersionedCollapsingSortedBlockInputStream(
const BlockInputStreams & inputs_, const SortDescription & description_,
const String & sign_column_, size_t max_block_size_,
WriteBuffer * out_row_sources_buf_)
: MergingSortedBlockInputStream(inputs_, description_, max_block_size_, 0, out_row_sources_buf_)
WriteBuffer * out_row_sources_buf_, bool average_block_sizes_)
: MergingSortedBlockInputStream(inputs_, description_, max_block_size_, 0, out_row_sources_buf_, false, average_block_sizes_)
, max_rows_in_queue(std::min(std::max<size_t>(3, max_block_size_), MAX_ROWS_IN_MULTIVERSION_QUEUE) - 2)
, current_keys(max_rows_in_queue + 1)
{
@ -83,7 +83,7 @@ Block VersionedCollapsingSortedBlockInputStream::readImpl()
void VersionedCollapsingSortedBlockInputStream::merge(MutableColumns & merged_columns, std::priority_queue<SortCursor> & queue)
{
size_t merged_rows = 0;
MergeStopCondition stop_condition(average_block_sizes, max_block_size);
auto update_queue = [this, & queue](SortCursor & cursor)
{
@ -108,6 +108,7 @@ void VersionedCollapsingSortedBlockInputStream::merge(MutableColumns & merged_co
while (!queue.empty())
{
SortCursor current = queue.top();
size_t current_block_granularity = current->rows;
RowRef next_key;
@ -154,10 +155,10 @@ void VersionedCollapsingSortedBlockInputStream::merge(MutableColumns & merged_co
current_keys.popFront();
++merged_rows;
stop_condition.incrementRowsCountFromGranularity(current_block_granularity);
--rows_to_merge;
if (merged_rows >= max_block_size)
if (stop_condition.checkStop())
{
++blocks_written;
return;
@ -173,7 +174,6 @@ void VersionedCollapsingSortedBlockInputStream::merge(MutableColumns & merged_co
insertRow(gap, row, merged_columns);
current_keys.popFront();
++merged_rows;
}
/// Write information about last collapsed rows.

2
dbms/src/DataStreams/VersionedCollapsingSortedBlockInputStream.h
View File

@ -178,7 +178,7 @@ public:
VersionedCollapsingSortedBlockInputStream(
const BlockInputStreams & inputs_, const SortDescription & description_,
const String & sign_column_, size_t max_block_size_,
WriteBuffer * out_row_sources_buf_ = nullptr);
WriteBuffer * out_row_sources_buf_ = nullptr, bool average_block_sizes_ = false);
String getName() const override { return "VersionedCollapsingSorted"; }

4
dbms/src/Storages/MergeTree/MergeTreeDataMergerMutator.cpp
View File

@ -642,7 +642,7 @@ MergeTreeData::MutableDataPartPtr MergeTreeDataMergerMutator::mergePartsToTempor
case MergeTreeData::MergingParams::Collapsing:
merged_stream = std::make_unique<CollapsingSortedBlockInputStream>(
src_streams, sort_description, data.merging_params.sign_column, DEFAULT_MERGE_BLOCK_SIZE, rows_sources_write_buf.get());
src_streams, sort_description, data.merging_params.sign_column, DEFAULT_MERGE_BLOCK_SIZE, rows_sources_write_buf.get(), blocks_are_granules_size);
break;
case MergeTreeData::MergingParams::Summing:
@ -668,7 +668,7 @@ MergeTreeData::MutableDataPartPtr MergeTreeDataMergerMutator::mergePartsToTempor
case MergeTreeData::MergingParams::VersionedCollapsing:
merged_stream = std::make_unique<VersionedCollapsingSortedBlockInputStream>(
src_streams, sort_description, data.merging_params.sign_column, DEFAULT_MERGE_BLOCK_SIZE, rows_sources_write_buf.get());
src_streams, sort_description, data.merging_params.sign_column, DEFAULT_MERGE_BLOCK_SIZE, rows_sources_write_buf.get(), blocks_are_granules_size);
break;
}