ClickHouse/src/Interpreters/InterpreterCreateNamedCollectionQuery.cpp

#include <Interpreters/InterpreterCreateNamedCollectionQuery.h>
#include <Interpreters/InterpreterFactory.h>
#include <Parsers/ASTCreateNamedCollectionQuery.h>
#include <Access/ContextAccess.h>
#include <Interpreters/Context.h>
#include <Interpreters/executeDDLQueryOnCluster.h>
#include <Common/NamedCollections/NamedCollectionUtils.h>


namespace DB
{

BlockIO InterpreterCreateNamedCollectionQuery::execute()
{
    auto current_context = getContext();
    const auto & query = query_ptr->as<const ASTCreateNamedCollectionQuery &>();

    current_context->checkAccess(AccessType::CREATE_NAMED_COLLECTION, query.collection_name);

    if (!query.cluster.empty())
    {
        DDLQueryOnClusterParams params;
        return executeDDLQueryOnCluster(query_ptr, current_context, params);
    }

    NamedCollectionUtils::createFromSQL(query, current_context);
    return {};
}

void registerInterpreterCreateNamedCollectionQuery(InterpreterFactory & factory)
{
    auto create_fn = [] (const InterpreterFactory::Arguments & args)
    {
        return std::make_unique<InterpreterCreateNamedCollectionQuery>(args.query, args.context);
    };
    factory.registerInterpreter("InterpreterCreateNamedCollectionQuery", create_fn);
}

}