thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-12-01 12:01:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix initializing

Browse Source
This commit is contained in:
Igor Markelov 2024-05-13 12:46:01 +00:00
parent f0daeca92b
commit 72231facd4
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/Interpreters/BestCompressionPermutation.cpp
View File

@ -2,6 +2,7 @@
#include <base/sort.h> #include <base/sort.h>
#include <Columns/IColumn.h> #include <Columns/IColumn.h>
#include <Common/iota.h>
#include <Common/PODArray.h> #include <Common/PODArray.h>
#include <Interpreters/sortBlock.h> #include <Interpreters/sortBlock.h>
@ -122,6 +123,16 @@ EqualRanges getEqualRanges(const Block & block, const SortDescription & descript
void getBestCompressionPermutation(const Block & block, const SortDescription & description, IColumn::Permutation & permutation) void getBestCompressionPermutation(const Block & block, const SortDescription & description, IColumn::Permutation & permutation)
{ {
if (!block)
return;
if (!permutation.empty() && block.rows() != permutation.size())
throw Exception(ErrorCodes::LOGICAL_ERROR, "!permutation.empty() && block.rows() != permutation.size()");
if (permutation.empty())
{
size_t size = block.rows();
permutation.resize(size);
iota(permutation.data(), size, IColumn::Permutation::value_type(0));
}
const auto equal_ranges = getEqualRanges(block, description, permutation); const auto equal_ranges = getEqualRanges(block, description, permutation);
const auto not_already_sorted_columns = getNotAlreadySortedColumnsIndex(block, description); const auto not_already_sorted_columns = getNotAlreadySortedColumnsIndex(block, description);
for (const auto & range : equal_ranges) for (const auto & range : equal_ranges)