create table project_folder ( id serial not null, file_name varchar not null, project_id integer not null, higher_file_id integer, type int not null ); comment on column project_folder.project_id is '自定义项目或者项企项目'; comment on column project_folder.higher_file_id is '上级文件id'; comment on column project_folder.type is '1.项目资料 2.维修FQA 3.故障资料 4.运维规范'; create unique index project_folder_id_uindex on project_folder (id); alter table project_folder add constraint project_folder_pk primary key (id); create table project_folder_file ( id serial not null, name varchar, size integer, upload_time timestamp, file_id integer, url varchar ); create unique index project_folder_file_id_uindex on project_folder_file (id);