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Some fixups

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Robert Schulze 2024-06-28 12:34:05 +00:00 committed by chrischenwei
parent b97158f5b6
commit cec2aba6bb
3 changed files with 18 additions and 13 deletions
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2
src/Core/Settings.cpp
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@ -142,7 +142,7 @@ void Settings::applyCompatibilitySetting(const String & compatibility_value)
return;
ClickHouseVersion version(compatibility_value);
auto settings_changes_history = getSettingsChangesHistory();
const auto & settings_changes_history = getSettingsChangesHistory();
/// Iterate through ClickHouse version in descending order and apply reversed
/// changes for each version that is higher that version from compatibility setting
for (auto it = settings_changes_history.rbegin(); it != settings_changes_history.rend(); ++it)

27
src/Core/SettingsChangesHistory.h
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@ -13,7 +13,7 @@ namespace DB
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
extern const int LOGICAL_ERROR;
}
class ClickHouseVersion
@ -85,7 +85,7 @@ namespace SettingsChangesHistory
/// controls new feature and it's 'true' by default, use 'false' as previous_value).
/// It's used to implement `compatibility` setting (see https://github.com/ClickHouse/ClickHouse/issues/35972)
/// Note: please check if the key already exists to prevent duplicate entries.
static std::initializer_list<std::pair<ClickHouseVersion, SettingsChangesHistory::SettingsChanges>> settings_changes_history_init =
static std::initializer_list<std::pair<ClickHouseVersion, SettingsChangesHistory::SettingsChanges>> settings_changes_history_initializer =
{
{"24.6", {{"materialize_skip_indexes_on_insert", true, true, "Added new setting to allow to disable materialization of skip indexes on insert"},
{"materialize_statistics_on_insert", true, true, "Added new setting to allow to disable materialization of statistics on insert"},
@ -323,22 +323,27 @@ static std::initializer_list<std::pair<ClickHouseVersion, SettingsChangesHistory
{"18.12.17", {{"enable_optimize_predicate_expression", 0, 1, "Optimize predicates to subqueries by default"}}},
};
static std::map<ClickHouseVersion, SettingsChangesHistory::SettingsChanges>& getSettingsChangesHistory()
static
const std::map<ClickHouseVersion, SettingsChangesHistory::SettingsChanges> & getSettingsChangesHistory()
{
static std::map<ClickHouseVersion, SettingsChangesHistory::SettingsChanges> settings_changes_history;
static bool initialized = false;
if (!initialized)
static std::once_flag initialized_flag;
std::call_once(initialized_flag, []()
{
for (auto it = settings_changes_history_init.begin(); it != settings_changes_history_init.end(); ++it)
for (const auto & setting_change : settings_changes_history_initializer)
{
if (settings_changes_history.contains(it->first))
throw Exception{ErrorCodes::BAD_ARGUMENTS, "ClickHouse version {} already exists, please check for duplicates and merge them", it->first.toString()};
/// Disallow duplicate keys in the settings changes history. Example:
/// {"21.2", {{"some_setting_1", false, true, "[...]"}}},
/// [...]
/// {"21.2", {{"some_setting_2", false, true, "[...]"}}},
/// As std::set has unique keys, one of the entries would be overwritten.
if (settings_changes_history.contains(setting_change.first))
throw Exception{ErrorCodes::LOGICAL_ERROR, "Detected duplicates version '{}'", setting_change.first.toString()};
settings_changes_history[it->first] = it->second;
settings_changes_history[setting_change.first] = setting_change.second;
}
initialized = true;
}
});
return settings_changes_history;
}

2
src/Storages/System/StorageSystemSettingsChanges.cpp
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@ -26,7 +26,7 @@ ColumnsDescription StorageSystemSettingsChanges::getColumnsDescription()
void StorageSystemSettingsChanges::fillData(MutableColumns & res_columns, ContextPtr, const ActionsDAG::Node *, std::vector<UInt8>) const
{
auto settings_changes_history = getSettingsChangesHistory();
const auto & settings_changes_history = getSettingsChangesHistory();
for (auto it = settings_changes_history.rbegin(); it != settings_changes_history.rend(); ++it)
{
res_columns[0]->insert(it->first.toString());