issue 637 correction - change null option bug in alter table gui
issue 637 correction - change null option bug in alter table gui

barthisrael/OmniDB,OmniDB/OmniDB,OmniDB/OmniDB,OmniDB/OmniDB,OmniDB/OmniDB,barthisrael/OmniDB,barthisrael/OmniDB,barthisrael/OmniDB,barthisrael/OmniDB,OmniDB/OmniDB,OmniDB/OmniDB,barthisrael/OmniDB,OmniDB/OmniDB,barthisrael/OmniDB