contrib/clickhouse/src/Storages/SetSettings.cpp


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#include <Storages/SetSettings.h>
#include <Parsers/ASTCreateQuery.h>
#include <Parsers/ASTSetQuery.h>
#include <Parsers/ASTFunction.h>
#include <Common/Exception.h>


namespace DB
{

namespace ErrorCodes
{
    extern const int UNKNOWN_SETTING;
}

IMPLEMENT_SETTINGS_TRAITS(setSettingsTraits, LIST_OF_SET_SETTINGS)

void SetSettings::loadFromQuery(ASTStorage & storage_def)
{
    if (storage_def.settings)
    {
        try
        {
            applyChanges(storage_def.settings->changes);
        }
        catch (Exception & e)
        {
            if (e.code() == ErrorCodes::UNKNOWN_SETTING)
                e.addMessage("for storage " + storage_def.engine->name);
            throw;
        }
    }
    else
    {
        auto settings_ast = std::make_shared<ASTSetQuery>();
        settings_ast->is_standalone = false;
        storage_def.set(storage_def.settings, settings_ast);
    }
}

}