CREATE TABLE bpm_process_instance_copy (
id bigint(20) NOT NULL AUTO_INCREMENT COMMENT '编号',
start_user_id bigint(20) NOT NULL DEFAULT '0' COMMENT '发起流程的用户编号',
process_instance_id varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '' COMMENT '流程实例的id',
process_instance_name varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '' COMMENT '流程实例的名字',
task_id varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '' COMMENT '发起抄送的任务编号',
user_id bigint(20) NOT NULL DEFAULT '0' COMMENT '用户id，被抄送人',
reason varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '审批建议',
creator varchar(64) COLLATE utf8mb4_unicode_ci DEFAULT '' COMMENT '创建者',
create_time datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
updater varchar(64) COLLATE utf8mb4_unicode_ci DEFAULT '' COMMENT '更新者',
update_time datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
deleted bit(1) NOT NULL DEFAULT b'0' COMMENT '是否删除',
tenant_id bigint(20) NOT NULL DEFAULT '0' COMMENT '租户编号',
category varchar(64) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '流程实例的分类',
task_name varchar(64) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '任务的名字',
PRIMARY KEY (id) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='流程实例抄送'

将category这个字段缩短了