docs(database): 规范脚本顺序并补全字段注释

script/sql/2.attachment.sql

@@ -0,0 +1,45 @@
+DROP TABLE IF EXISTS sys_attachment;
+
+CREATE TABLE sys_attachment (
+    id BIGSERIAL PRIMARY KEY,
+    source_type VARCHAR(100) NOT NULL,
+    source_id BIGINT,
+    original_name VARCHAR(255) NOT NULL,
+    file_name VARCHAR(255) NOT NULL,
+    file_suffix VARCHAR(50),
+    content_type VARCHAR(100),
+    file_size BIGINT NOT NULL DEFAULT 0,
+    storage_type VARCHAR(50) NOT NULL,
+    file_path VARCHAR(500) NOT NULL,
+    file_url VARCHAR(500),
+    version INTEGER NOT NULL DEFAULT 1,
+    create_time TIMESTAMP,
+    update_time TIMESTAMP,
+    remark VARCHAR(500) DEFAULT '',
+    create_by VARCHAR(64),
+    update_by VARCHAR(64)
+);
+
+CREATE INDEX idx_sys_attachment_source_type ON sys_attachment (source_type);
+CREATE INDEX idx_sys_attachment_source_id ON sys_attachment (source_id);
+CREATE INDEX idx_sys_attachment_storage_type ON sys_attachment (storage_type);
+CREATE INDEX idx_sys_attachment_create_time ON sys_attachment (create_time);
+
+COMMENT ON TABLE sys_attachment IS '系统附件表';
+COMMENT ON COLUMN sys_attachment.id IS 'ID';
+COMMENT ON COLUMN sys_attachment.source_type IS '来源业务类型';
+COMMENT ON COLUMN sys_attachment.source_id IS '来源业务ID';
+COMMENT ON COLUMN sys_attachment.original_name IS '原始文件名';
+COMMENT ON COLUMN sys_attachment.file_name IS '存储文件名';
+COMMENT ON COLUMN sys_attachment.file_suffix IS '文件后缀';
+COMMENT ON COLUMN sys_attachment.content_type IS '文件MIME类型';
+COMMENT ON COLUMN sys_attachment.file_size IS '文件大小(字节)';
+COMMENT ON COLUMN sys_attachment.storage_type IS '存储类型';
+COMMENT ON COLUMN sys_attachment.file_path IS '文件存储路径';
+COMMENT ON COLUMN sys_attachment.file_url IS '文件访问地址';
+COMMENT ON COLUMN sys_attachment.version IS '版本';
+COMMENT ON COLUMN sys_attachment.create_time IS '创建时间';
+COMMENT ON COLUMN sys_attachment.update_time IS '更新时间';
+COMMENT ON COLUMN sys_attachment.remark IS '备注';
+COMMENT ON COLUMN sys_attachment.create_by IS '创建者';
+COMMENT ON COLUMN sys_attachment.update_by IS '更新者';