drop table meta_nodes;
alter table current_nodes modify tags text not null;
alter table current_nodes modify id bigint(64) not null auto_increment;
+alter table nodes modify tags text not null;
-alter table nodes modify tags text not null;
+drop table meta_segments;
+alter table current_segments modify tags text not null;
+alter table current_segments modify id bigint(64) not null auto_increment;
+alter table segments modify tags text not null;