text: create index IDX_TaskEvent_processInstanceId on TaskEvent (processInstanceId);
  create index IDX_CaseRoleAssignLog_caseId on CaseRoleAssignmentLog(caseId);
  create index IDX_CaseRoleAssignLog_processInstanceId on CaseRoleAssignmentLog(processInstanceId);
  create index IDX_CaseFileDataLog_caseId on CaseFileDataLog(caseId);
  create index IDX_CaseFileDataLog_itemName on CaseFileDataLog(itemName);
  
  