+++ /dev/null
-begin;
-alter table user_group drop column dead1;
-alter table user_group drop column dead2;
-alter table user_group drop column dead3;
-commit;
-begin;
-alter table groups drop column dead1;
-alter table groups drop column dead2;
-alter table groups drop column dead3;
-alter table groups drop column dead4;
-alter table groups drop column dead5;
-alter table groups drop column dead6;
-alter table groups drop column dead7;
-alter table groups drop column dead8;
-alter table groups drop column dead9;
-alter table groups drop column dead10;
-alter table groups drop column dead11;
-alter table groups drop column dead12;
-alter table groups drop column dead13;
-commit;