Support reset connection for MariaDB. Fixes #613

Author: bgrainger

src/MySqlConnector/Core/ServerSession.cs

@@ -394,7 +394,7 @@ public async Task<bool> TryResetConnectionAsync(ConnectionSettings cs, IOBehavio
 				// clear all prepared statements; resetting the connection will clear them on the server
 				ClearPreparedStatements();
 
-				if (DatabaseOverride == null && ServerVersion.Version.CompareTo(ServerVersions.SupportsResetConnection) >= 0)
+				if (DatabaseOverride == null && (ServerVersion.Version.CompareTo(ServerVersions.SupportsResetConnection) >= 0 || ServerVersion.MariaDbVersion.CompareTo(ServerVersions.MariaDbSupportsResetConnection) >= 0))
 				{
 					m_logArguments[1] = ServerVersion.OriginalString;
 					Log.Debug("Session{0} ServerVersion={1} supports reset connection; sending reset connection request", m_logArguments);

src/MySqlConnector/Core/ServerVersions.cs

@@ -10,6 +10,9 @@ internal static class ServerVersions
 		// https://dev.mysql.com/doc/refman/5.7/en/mysql-reset-connection.html
 		public static readonly Version SupportsResetConnection = new Version(5, 7, 3);
 
+		// https://mariadb.com/kb/en/library/com_reset_connection/
+		public static readonly Version MariaDbSupportsResetConnection = new Version(10, 2, 4);
+
 		// http://dev.mysql.com/doc/refman/5.5/en/parameters-table.html
 		public static readonly Version SupportsProcedureCache = new Version(5, 5, 3);