public CompletableFuture<QueryResponse> query(String sqlQuery) {
        return query(sqlQuery, null, null);
    }
Sends SQL query to server. Default settings are applied.
@param sqlQuery - complete SQL query.
@return {@code CompletableFuture<QueryResponse>} - a promise to query response.
client-v2/src/main/java/com/clickhouse/client/api/Client.java