delete from _branch_document_data; delete from branch_document; insert into branch_document (id) values (1); insert into _branch_document_data (id,_table,_start_t) values (1,1,current_timestamp); insert into branch_document (id) values (2); insert into _branch_document_data (id,_table,_start_t) values (2,2,current_timestamp); insert into branch_document (id) values (3); insert into _branch_document_data (id,_table,_start_t) values (3,3,current_timestamp); insert into branch_document (id) values (4); insert into _branch_document_data (id,_table,_start_t) values (4,4,current_timestamp); insert into branch_document (id) values (5); insert into _branch_document_data (id,_table,_start_t) values (5,5,current_timestamp); insert into branch_document (id) values (6); insert into _branch_document_data (id,_table,_start_t) values (6,6,current_timestamp);