#pragma once #include namespace DB { class Context; /** Implements `zookeeper` system table, which allows you to view the data in ZooKeeper for debugging purposes. */ class StorageSystemZooKeeper final : public IStorageSystemOneBlock { public: std::string getName() const override { return "SystemZooKeeper"; } static NamesAndTypesList getNamesAndTypes(); SinkToStoragePtr write(const ASTPtr & /*query*/, const StorageMetadataPtr & /*metadata_snapshot*/, ContextPtr /*context*/) override; protected: using IStorageSystemOneBlock::IStorageSystemOneBlock; void fillData(MutableColumns & res_columns, ContextPtr context, const SelectQueryInfo & query_info) const override; }; }