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

OmniDB/OmniDB,rafaelthca/OmniDB,rafaelthca/OmniDB,rafaelthca/OmniDB,OmniDB/OmniDB,OmniDB/OmniDB,OmniDB/OmniDB,OmniDB/OmniDB,rafaelthca/OmniDB,rafaelthca/OmniDB,OmniDB/OmniDB,rafaelthca/OmniDB,rafaelthca/OmniDB,OmniDB/OmniDB