Allow config to enable compression

Author: dedmen

docs/intro/config-file.rst

@@ -16,6 +16,7 @@ The InterceptDB Config file
       password: lulz
       database: production
       port: 3306 #optional
+      opt_compress: false #set the MYSQL_OPT_COMPRESS option
     
     statements:
      insertStuff: INSERT INTO table (a,b,c) VALUES (?,?,?)

src/config.cpp

@@ -72,6 +72,8 @@ void Config::reloadConfig() {
         auto acc = mariadb::account::create(ip, user, password, database, port);
         acc->set_connect_option(MYSQL_SET_CHARSET_NAME, r_string("utf8mb4"sv));
         acc->set_connect_option(MYSQL_OPT_RECONNECT, true);
+        if (value["opt_compress"].as<bool>(false))
+            acc->set_connect_option(MYSQL_OPT_COMPRESS, true);
         //acc->set_connect_option(MARIADB_OPT_MULTI_STATEMENTS, true);
         //acc->set_connect_option(MARIADB_OPT_MULTI_RESULTS, true);
         //acc->set_auto_commit(false);