ClickHouse/src/Storages/System/StorageSystemMerges.cpp
2020-09-13 10:00:03 +08:00

84 lines
3.5 KiB
C++

#include <Interpreters/Context.h>
#include <Storages/MergeTree/MergeList.h>
#include <Storages/System/StorageSystemMerges.h>
#include <Access/ContextAccess.h>
namespace DB
{
NamesAndTypesList StorageSystemMerges::getNamesAndTypes()
{
return {
{"database", std::make_shared<DataTypeString>()},
{"table", std::make_shared<DataTypeString>()},
{"elapsed", std::make_shared<DataTypeFloat64>()},
{"progress", std::make_shared<DataTypeFloat64>()},
{"num_parts", std::make_shared<DataTypeUInt64>()},
{"source_part_names", std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>())},
{"result_part_name", std::make_shared<DataTypeString>()},
{"source_part_paths", std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>())},
{"result_part_path", std::make_shared<DataTypeString>()},
{"partition_id", std::make_shared<DataTypeString>()},
{"is_mutation", std::make_shared<DataTypeUInt8>()},
{"total_size_bytes_compressed", std::make_shared<DataTypeUInt64>()},
{"total_size_marks", std::make_shared<DataTypeUInt64>()},
{"bytes_read_uncompressed", std::make_shared<DataTypeUInt64>()},
{"rows_read", std::make_shared<DataTypeUInt64>()},
{"bytes_written_uncompressed", std::make_shared<DataTypeUInt64>()},
{"rows_written", std::make_shared<DataTypeUInt64>()},
{"columns_written", std::make_shared<DataTypeUInt64>()},
{"memory_usage", std::make_shared<DataTypeUInt64>()},
{"thread_id", std::make_shared<DataTypeUInt64>()},
{"merge_type", std::make_shared<DataTypeString>()},
{"merge_algorithm", std::make_shared<DataTypeString>()},
};
}
void StorageSystemMerges::fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo &) const
{
const auto access = context.getAccess();
const bool check_access_for_tables = !access->isGranted(AccessType::SHOW_TABLES);
for (const auto & merge : context.getMergeList().get())
{
if (check_access_for_tables && !access->isGranted(AccessType::SHOW_TABLES, merge.database, merge.table))
continue;
size_t i = 0;
res_columns[i++]->insert(merge.database);
res_columns[i++]->insert(merge.table);
res_columns[i++]->insert(merge.elapsed);
res_columns[i++]->insert(merge.progress);
res_columns[i++]->insert(merge.num_parts);
res_columns[i++]->insert(merge.source_part_names);
res_columns[i++]->insert(merge.result_part_name);
res_columns[i++]->insert(merge.source_part_paths);
res_columns[i++]->insert(merge.result_part_path);
res_columns[i++]->insert(merge.partition_id);
res_columns[i++]->insert(merge.is_mutation);
res_columns[i++]->insert(merge.total_size_bytes_compressed);
res_columns[i++]->insert(merge.total_size_marks);
res_columns[i++]->insert(merge.bytes_read_uncompressed);
res_columns[i++]->insert(merge.rows_read);
res_columns[i++]->insert(merge.bytes_written_uncompressed);
res_columns[i++]->insert(merge.rows_written);
res_columns[i++]->insert(merge.columns_written);
res_columns[i++]->insert(merge.memory_usage);
res_columns[i++]->insert(merge.thread_id);
if (!merge.is_mutation)
{
res_columns[i++]->insert(merge.merge_type);
res_columns[i++]->insert(merge.merge_algorithm);
}
else
{
res_columns[i++]->insertDefault();
res_columns[i++]->insertDefault();
}
}
}
}