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#include <Columns/ColumnString.h>
#include <Columns/ColumnArray.h>
#include <Columns/ColumnsNumber.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeArray.h>
#include <Storages/System/StorageSystemReplicationQueue.h>
#include <Storages/StorageReplicatedMergeTree.h>
#include <Storages/VirtualColumnUtils.h>
#include <Access/ContextAccess.h>
#include <Common/typeid_cast.h>
#include <Databases/IDatabase.h>
namespace DB
{
NamesAndTypesList StorageSystemReplicationQueue::getNamesAndTypes()
{
return {
/// Table properties.
{ "database", std::make_shared<DataTypeString>() },
{ "table", std::make_shared<DataTypeString>() },
{ "replica_name", std::make_shared<DataTypeString>() },
/// Constant element properties.
{ "position", std::make_shared<DataTypeUInt32>() },
{ "node_name", std::make_shared<DataTypeString>() },
{ "type", std::make_shared<DataTypeString>() },
{ "create_time", std::make_shared<DataTypeDateTime>() },
{ "required_quorum", std::make_shared<DataTypeUInt32>() },
{ "source_replica", std::make_shared<DataTypeString>() },
{ "new_part_name", std::make_shared<DataTypeString>() },
{ "parts_to_merge", std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>()) },
{ "is_detach", std::make_shared<DataTypeUInt8>() },
/// Processing status of item.
{ "is_currently_executing", std::make_shared<DataTypeUInt8>() },
{ "num_tries", std::make_shared<DataTypeUInt32>() },
{ "last_exception", std::make_shared<DataTypeString>() },
{ "last_exception_time", std::make_shared<DataTypeDateTime>() },
{ "last_attempt_time", std::make_shared<DataTypeDateTime>() },
{ "num_postponed", std::make_shared<DataTypeUInt32>() },
{ "postpone_reason", std::make_shared<DataTypeString>() },
{ "last_postpone_time", std::make_shared<DataTypeDateTime>() },
{ "merge_type", std::make_shared<DataTypeString>() },
};
}
void StorageSystemReplicationQueue::fillData(MutableColumns & res_columns, ContextPtr context, const SelectQueryInfo & query_info) const
{
const auto access = context->getAccess();
const bool check_access_for_databases = !access->isGranted(AccessType::SHOW_TABLES);
std::map<String, std::map<String, StoragePtr>> replicated_tables;
for (const auto & db : DatabaseCatalog::instance().getDatabases())
{
/// Check if database can contain replicated tables
if (!db.second->canContainMergeTreeTables())
continue;
const bool check_access_for_tables = check_access_for_databases && !access->isGranted(AccessType::SHOW_TABLES, db.first);
for (auto iterator = db.second->getTablesIterator(context); iterator->isValid(); iterator->next())
{
const auto & table = iterator->table();
if (!table)
continue;
if (!dynamic_cast<const StorageReplicatedMergeTree *>(table.get()))
continue;
if (check_access_for_tables && !access->isGranted(AccessType::SHOW_TABLES, db.first, iterator->name()))
continue;
replicated_tables[db.first][iterator->name()] = table;
}
}
MutableColumnPtr col_database_mut = ColumnString::create();
MutableColumnPtr col_table_mut = ColumnString::create();
for (auto & db : replicated_tables)
{
for (auto & table : db.second)
{
col_database_mut->insert(db.first);
col_table_mut->insert(table.first);
}
}
ColumnPtr col_database_to_filter = std::move(col_database_mut);
ColumnPtr col_table_to_filter = std::move(col_table_mut);
/// Determine what tables are needed by the conditions in the query.
{
Block filtered_block
{
{ col_database_to_filter, std::make_shared<DataTypeString>(), "database" },
{ col_table_to_filter, std::make_shared<DataTypeString>(), "table" },
};
VirtualColumnUtils::filterBlockWithQuery(query_info.query, filtered_block, context);
if (!filtered_block.rows())
return;
col_database_to_filter = filtered_block.getByName("database").column;
col_table_to_filter = filtered_block.getByName("table").column;
}
StorageReplicatedMergeTree::LogEntriesData queue;
String replica_name;
for (size_t i = 0, tables_size = col_database_to_filter->size(); i < tables_size; ++i)
{
String database = (*col_database_to_filter)[i].safeGet<const String &>();
String table = (*col_table_to_filter)[i].safeGet<const String &>();
dynamic_cast<StorageReplicatedMergeTree &>(*replicated_tables[database][table]).getQueue(queue, replica_name);
for (size_t j = 0, queue_size = queue.size(); j < queue_size; ++j)
{
const auto & entry = queue[j];
Array parts_to_merge;
parts_to_merge.reserve(entry.source_parts.size());
for (const auto & part_name : entry.source_parts)
parts_to_merge.push_back(part_name);
size_t col_num = 0;
res_columns[col_num++]->insert(database);
res_columns[col_num++]->insert(table);
res_columns[col_num++]->insert(replica_name);
res_columns[col_num++]->insert(j);
res_columns[col_num++]->insert(entry.znode_name);
res_columns[col_num++]->insert(entry.typeToString());
res_columns[col_num++]->insert(entry.create_time);
res_columns[col_num++]->insert(entry.quorum);
res_columns[col_num++]->insert(entry.source_replica);
res_columns[col_num++]->insert(entry.new_part_name);
res_columns[col_num++]->insert(parts_to_merge);
res_columns[col_num++]->insert(entry.detach);
res_columns[col_num++]->insert(entry.currently_executing);
res_columns[col_num++]->insert(entry.num_tries);
res_columns[col_num++]->insert(entry.exception ? getExceptionMessage(entry.exception, true) : "");
res_columns[col_num++]->insert(UInt64(entry.last_exception_time));
res_columns[col_num++]->insert(UInt64(entry.last_attempt_time));
res_columns[col_num++]->insert(entry.num_postponed);
res_columns[col_num++]->insert(entry.postpone_reason);
res_columns[col_num++]->insert(UInt64(entry.last_postpone_time));
if (entry.type == ReplicatedMergeTreeLogEntryData::Type::MERGE_PARTS)
res_columns[col_num++]->insert(toString(entry.merge_type));
else
res_columns[col_num++]->insertDefault();
}
}
}
}
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