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#include <Storages/MySQL/MySQLSettings.h>
#include <Parsers/ASTCreateQuery.h>
#include <Parsers/ASTSetQuery.h>
#include <Parsers/ASTFunction.h>
#include <Common/Exception.h>
#include <Interpreters/Context.h>
#include <Parsers/formatAST.h>
#include <Core/Field.h>
namespace DB
{
namespace ErrorCodes
{
extern const int UNKNOWN_SETTING;
}
IMPLEMENT_SETTINGS_TRAITS(MySQLSettingsTraits, LIST_OF_MYSQL_SETTINGS)
void MySQLSettings::loadFromQuery(const ASTSetQuery & settings_def)
{
applyChanges(settings_def.changes);
}
void MySQLSettings::loadFromQuery(ASTStorage & storage_def)
{
if (storage_def.settings)
{
try
{
loadFromQuery(*storage_def.settings);
}
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);
}
}
void MySQLSettings::loadFromQueryContext(ContextPtr context, ASTStorage & storage_def)
{
if (!context->hasQueryContext())
return;
const Settings & settings = context->getQueryContext()->getSettingsRef();
if (settings.mysql_datatypes_support_level.value != mysql_datatypes_support_level.value)
{
static constexpr auto setting_name = "mysql_datatypes_support_level";
set(setting_name, settings.mysql_datatypes_support_level.toString());
if (!storage_def.settings)
{
auto settings_ast = std::make_shared<ASTSetQuery>();
settings_ast->is_standalone = false;
storage_def.set(storage_def.settings, settings_ast);
}
auto & changes = storage_def.settings->changes;
if (changes.end() == std::find_if(
changes.begin(), changes.end(),
[](const SettingChange & c) { return c.name == setting_name; }))
{
changes.push_back(SettingChange{setting_name, settings.mysql_datatypes_support_level.toString()});
}
}
}
}
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