create table ACT_HI_IDENTITYLINK (
    ID_ varchar(64),
    GROUP_ID_ varchar(255),
    TYPE_ varchar(255),
    USER_ID_ varchar(255),
    TASK_ID_ varchar(64),
    PROC_INST_ID_ varchar(64) null,
    primary key (ID_)
);

create index ACT_IDX_HI_IDENT_LNK_USER on ACT_HI_IDENTITYLINK(USER_ID_);
create index ACT_IDX_HI_IDENT_LNK_TASK on ACT_HI_IDENTITYLINK(TASK_ID_);
create index ACT_IDX_HI_IDENT_LNK_PROCINST on ACT_HI_IDENTITYLINK(PROC_INST_ID_);