text: --
  -- Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
  -- under one or more contributor license agreements. See the NOTICE file
  -- distributed with this work for additional information regarding copyright
  -- ownership. Camunda licenses this file to you under the Apache License,
  -- Version 2.0; you may not use this file except in compliance with the License.
  -- You may obtain a copy of the License at
  --
  --     http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  --
  
  alter table ACT_RE_DECISION_DEF
      drop constraint ACT_FK_DEC_REQ;
  
  drop index ACT_IDX_DEC_DEF_TENANT_ID;
  drop index ACT_IDX_DEC_DEF_REQ_ID;
  drop index ACT_IDX_DEC_REQ_DEF_TENANT_ID;
  
  drop table ACT_RE_DECISION_DEF;
  drop table ACT_RE_DECISION_REQ_DEF;
  
  --
  -- Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
  -- under one or more contributor license agreements. See the NOTICE file
  -- distributed with this work for additional information regarding copyright
  -- ownership. Camunda licenses this file to you under the Apache License,
  -- Version 2.0; you may not use this file except in compliance with the License.
  -- You may obtain a copy of the License at
  --
  --     http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  --
  
  drop index ACT_IDX_CASE_EXEC_BUSKEY;
  
  alter table ACT_RU_CASE_EXECUTION
      drop foreign key ACT_FK_CASE_EXE_CASE_INST;
  
  alter table ACT_RU_CASE_EXECUTION
      drop foreign key ACT_FK_CASE_EXE_PARENT;
  
  alter table ACT_RU_CASE_EXECUTION
      drop foreign key ACT_FK_CASE_EXE_CASE_DEF;
  
  alter table ACT_RU_VARIABLE
      drop foreign key ACT_FK_VAR_CASE_EXE;
  
  alter table ACT_RU_VARIABLE
      drop foreign key ACT_FK_VAR_CASE_INST;
  
  alter table ACT_RU_TASK
      drop foreign key ACT_FK_TASK_CASE_EXE;
  
  alter table ACT_RU_TASK
      drop foreign key ACT_FK_TASK_CASE_DEF;
  
  alter table ACT_RU_CASE_SENTRY_PART
      drop foreign key ACT_FK_CASE_SENTRY_CASE_INST;
  
  alter table ACT_RU_CASE_SENTRY_PART
      drop foreign key ACT_FK_CASE_SENTRY_CASE_EXEC;
  
  -- indexes for concurrency problems - https://app.camunda.com/jira/browse/CAM-1646 --
  drop index ACT_IDX_CASE_EXEC_CASE;
  drop index ACT_IDX_CASE_EXEC_PARENT;
  drop index ACT_IDX_VARIABLE_CASE_EXEC;
  drop index ACT_IDX_VARIABLE_CASE_INST;
  drop index ACT_IDX_TASK_CASE_EXEC;
  drop index ACT_IDX_TASK_CASE_DEF_ID;
  drop index ACT_IDX_CASE_SENTRY_CASE_INST;
  drop index ACT_IDX_CASE_SENTRY_CASE_EXEC;
  
  drop index ACT_IDX_CASE_DEF_TENANT_ID;
  drop index ACT_IDX_CASE_EXEC_TENANT_ID;
  
  -- https://app.camunda.com/jira/browse/CAM-9165
  drop index ACT_IDX_CASE_EXE_CASE_INST;
  
  drop table ACT_RE_CASE_DEF;
  drop table ACT_RU_CASE_EXECUTION;
  drop table ACT_RU_CASE_SENTRY_PART;
  --
  -- Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
  -- under one or more contributor license agreements. See the NOTICE file
  -- distributed with this work for additional information regarding copyright
  -- ownership. Camunda licenses this file to you under the Apache License,
  -- Version 2.0; you may not use this file except in compliance with the License.
  -- You may obtain a copy of the License at
  --
  --     http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  --
  
  drop index ACT_IDX_BYTEARRAY_ROOT_PI;
  drop index ACT_IDX_BYTEARRAY_RM_TIME;
  drop index ACT_IDX_EXECUTION_ROOT_PI;
  drop index ACT_IDX_EXEC_BUSKEY;
  drop index ACT_IDX_TASK_CREATE;
  drop index ACT_IDX_TASK_ASSIGNEE;
  drop index ACT_IDX_IDENT_LNK_USER;
  drop index ACT_IDX_IDENT_LNK_GROUP;
  drop index ACT_IDX_VARIABLE_TASK_ID;
  drop index ACT_IDX_INC_CONFIGURATION;
  drop index ACT_IDX_JOB_PROCINST;
  drop index ACT_UNIQ_AUTH_USER;
  drop index ACT_UNIQ_AUTH_GROUP;
  drop index ACT_UNIQ_VARIABLE;
  drop index ACT_IDX_AUTH_GROUP_ID;
  
  alter table ACT_GE_BYTEARRAY
      drop foreign key ACT_FK_BYTEARR_DEPL;
  
  alter table ACT_RU_EXECUTION
      drop foreign key ACT_FK_EXE_PROCINST;
  
  alter table ACT_RU_EXECUTION
      drop foreign key ACT_FK_EXE_PARENT;
  
  alter table ACT_RU_EXECUTION
      drop foreign key ACT_FK_EXE_SUPER;
  
  alter table ACT_RU_EXECUTION
      drop foreign key ACT_FK_EXE_PROCDEF;
  
  alter table ACT_RU_IDENTITYLINK
      drop foreign key ACT_FK_TSKASS_TASK;
  
  alter table ACT_RU_IDENTITYLINK
      drop foreign key ACT_FK_ATHRZ_PROCEDEF;
  
  alter table ACT_RU_TASK
  	drop foreign key ACT_FK_TASK_EXE;
  
  alter table ACT_RU_TASK
  	drop foreign key ACT_FK_TASK_PROCINST;
  
  alter table ACT_RU_TASK
  	drop foreign key ACT_FK_TASK_PROCDEF;
  
  alter table ACT_RU_VARIABLE
      drop foreign key ACT_FK_VAR_EXE;
  
  alter table ACT_RU_VARIABLE
  	drop foreign key ACT_FK_VAR_PROCINST;
  
  alter table ACT_RU_VARIABLE
      drop foreign key ACT_FK_VAR_BYTEARRAY;
  
  alter table ACT_RU_JOB
      drop foreign key ACT_FK_JOB_EXCEPTION;
  
  alter table ACT_RU_EVENT_SUBSCR
      drop foreign key ACT_FK_EVENT_EXEC;
  
  alter table ACT_RU_INCIDENT
      drop foreign key ACT_FK_INC_EXE;
  
  alter table ACT_RU_INCIDENT
      drop foreign key ACT_FK_INC_PROCINST;
  
  alter table ACT_RU_INCIDENT
      drop foreign key ACT_FK_INC_PROCDEF;
  
  alter table ACT_RU_INCIDENT
      drop foreign key ACT_FK_INC_CAUSE;
  
  alter table ACT_RU_INCIDENT
      drop foreign key ACT_FK_INC_RCAUSE;
  
  alter table ACT_RU_INCIDENT
      drop foreign key ACT_FK_INC_JOB_DEF;
  
  alter table ACT_RU_EXT_TASK
      drop foreign key ACT_FK_EXT_TASK_EXE;
  
  alter table ACT_RU_BATCH
      drop foreign key ACT_FK_BATCH_SEED_JOB_DEF;
  
  alter table ACT_RU_BATCH
      drop foreign key ACT_FK_BATCH_MONITOR_JOB_DEF;
  
  alter table ACT_RU_BATCH
      drop foreign key ACT_FK_BATCH_JOB_DEF;
  
  alter table ACT_RU_EXT_TASK
      drop foreign key ACT_FK_EXT_TASK_ERROR_DETAILS;
  
  drop index ACT_IDX_EVENT_SUBSCR_CONFIG_;
  drop index ACT_IDX_ATHRZ_PROCEDEF;
  
  -- indexes for concurrency problems - https://app.camunda.com/jira/browse/CAM-1646 --
  drop index ACT_IDX_EXECUTION_PROC;
  drop index ACT_IDX_EXECUTION_PARENT;
  drop index ACT_IDX_EXECUTION_SUPER;
  drop index ACT_IDX_EXECUTION_PROCINST;
  drop index ACT_IDX_EVENT_SUBSCR_EXEC;
  drop index ACT_IDX_BA_DEPLOYMENT;
  drop index ACT_IDX_IDENT_LNK_TASK;
  drop index ACT_IDX_INCIDENT_EXEC;
  drop index ACT_IDX_INCIDENT_PROCINST;
  drop index ACT_IDX_INCIDENT_PROC_DEF_ID;
  drop index ACT_IDX_INCIDENT_CAUSE;
  drop index ACT_IDX_INCIDENT_ROOT_CAUSE;
  drop index ACT_IDX_INCIDENT_JOB_DEF;
  drop index ACT_IDX_JOB_EXCEPTION_STACK;
  drop index ACT_IDX_VARIABLE_BA;
  drop index ACT_IDX_VARIABLE_EXEC;
  drop index ACT_IDX_VARIABLE_PROCINST;
  drop index ACT_IDX_TASK_EXEC;
  drop index ACT_IDX_TASK_PROCINST;
  drop index ACT_IDX_TASK_PROC_DEF_ID;
  
  -- new metric milliseconds column
  DROP INDEX ACT_IDX_METER_LOG_MS;
  DROP INDEX ACT_IDX_METER_LOG_NAME_MS;
  DROP INDEX ACT_IDX_METER_LOG_REPORT;
  
  -- old metric timestamp column
  DROP INDEX ACT_IDX_METER_LOG_TIME;
  DROP INDEX ACT_IDX_METER_LOG;
  
  drop index ACT_IDX_AUTH_RESOURCE_ID;
  drop index ACT_IDX_EXT_TASK_TOPIC;
  drop index ACT_IDX_EXT_TASK_EXEC;
  
  drop index ACT_IDX_BYTEARRAY_NAME;
  drop index ACT_IDX_DEPLOYMENT_NAME;
  drop index ACT_IDX_JOBDEF_PROC_DEF_ID;
  drop index ACT_IDX_JOB_HANDLER_TYPE;
  drop index ACT_IDX_EVENT_SUBSCR_EVT_NAME;
  drop index ACT_IDX_PROCDEF_DEPLOYMENT_ID;
  
  drop index ACT_IDX_EXT_TASK_TENANT_ID;
  drop index ACT_IDX_EXT_TASK_PRIORITY;
  drop index ACT_IDX_EXT_TASK_ERR_DETAILS;
  drop index ACT_IDX_INC_TENANT_ID;
  drop index ACT_IDX_JOBDEF_TENANT_ID;
  drop index ACT_IDX_JOB_TENANT_ID;
  drop index ACT_IDX_EVENT_SUBSCR_TENANT_ID;
  drop index ACT_IDX_VARIABLE_TENANT_ID;
  drop index ACT_IDX_TASK_TENANT_ID;
  drop index ACT_IDX_EXEC_TENANT_ID;
  drop index ACT_IDX_PROCDEF_TENANT_ID;
  drop index ACT_IDX_DEPLOYMENT_TENANT_ID;
  
  drop index ACT_IDX_JOB_JOB_DEF_ID;
  drop index ACT_IDX_BATCH_SEED_JOB_DEF;
  drop index ACT_IDX_BATCH_MONITOR_JOB_DEF;
  drop index ACT_IDX_BATCH_JOB_DEF;
  
  drop index ACT_IDX_PROCDEF_VER_TAG;
  
  drop index ACT_IDX_JOB_EXECUTION_ID;
  
  drop table ACT_GE_PROPERTY;
  drop table ACT_GE_BYTEARRAY;
  drop table ACT_RE_DEPLOYMENT;
  drop table ACT_RE_PROCDEF;
  drop table ACT_RU_VARIABLE;
  drop table ACT_RU_IDENTITYLINK;
  drop table ACT_RU_TASK;
  drop table ACT_RU_EXECUTION;
  drop table ACT_RU_JOB;
  drop table ACT_RU_JOBDEF;
  drop table ACT_RU_EVENT_SUBSCR;
  drop table ACT_RU_INCIDENT;
  drop table ACT_RU_AUTHORIZATION;
  drop table ACT_RU_FILTER;
  drop table ACT_RU_METER_LOG;
  drop table ACT_RU_EXT_TASK;
  drop table ACT_RU_BATCH;
  drop table ACT_GE_SCHEMA_LOG;
  --
  -- Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
  -- under one or more contributor license agreements. See the NOTICE file
  -- distributed with this work for additional information regarding copyright
  -- ownership. Camunda licenses this file to you under the Apache License,
  -- Version 2.0; you may not use this file except in compliance with the License.
  -- You may obtain a copy of the License at
  --
  --     http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  --
  
  drop index ACT_IDX_HI_DEC_INST_ID;
  drop index ACT_IDX_HI_DEC_INST_KEY;
  drop index ACT_IDX_HI_DEC_INST_PI;
  drop index ACT_IDX_HI_DEC_INST_CI;
  drop index ACT_IDX_HI_DEC_INST_ACT;
  drop index ACT_IDX_HI_DEC_INST_ACT_INST;
  drop index ACT_IDX_HI_DEC_INST_TIME;
  drop index ACT_IDX_HI_DEC_INST_TENANT_ID;
  drop index ACT_IDX_HI_DEC_INST_ROOT_ID;
  drop index ACT_IDX_HI_DEC_INST_REQ_ID;
  drop index ACT_IDX_HI_DEC_INST_REQ_KEY;
  drop index ACT_IDX_HI_DEC_INST_ROOT_PI;
  drop index ACT_IDX_HI_DEC_INST_RM_TIME;
  
  drop index ACT_IDX_HI_DEC_IN_INST;
  drop index ACT_IDX_HI_DEC_IN_CLAUSE;
  drop index ACT_IDX_HI_DEC_IN_ROOT_PI;
  drop index ACT_IDX_HI_DEC_IN_RM_TIME;
  
  drop index ACT_IDX_HI_DEC_OUT_INST;
  drop index ACT_IDX_HI_DEC_OUT_RULE;
  drop index ACT_IDX_HI_DEC_OUT_ROOT_PI;
  drop index ACT_IDX_HI_DEC_OUT_RM_TIME;
  
  drop table ACT_HI_DECINST;
  
  drop table ACT_HI_DEC_IN;
  
  drop table ACT_HI_DEC_OUT;
  --
  -- Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
  -- under one or more contributor license agreements. See the NOTICE file
  -- distributed with this work for additional information regarding copyright
  -- ownership. Camunda licenses this file to you under the Apache License,
  -- Version 2.0; you may not use this file except in compliance with the License.
  -- You may obtain a copy of the License at
  --
  --     http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  --
  
  drop index ACT_IDX_HI_CAS_I_CLOSE;
  drop index ACT_IDX_HI_CAS_I_BUSKEY;
  drop index ACT_IDX_HI_CAS_I_TENANT_ID;
  drop index ACT_IDX_HI_CAS_A_I_CREATE;
  drop index ACT_IDX_HI_CAS_A_I_END;
  drop index ACT_IDX_HI_CAS_A_I_COMP;
  drop index ACT_IDX_HI_CAS_A_I_TENANT_ID;
  
  drop table ACT_HI_CASEINST;
  drop table ACT_HI_CASEACTINST;
  --
  -- Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
  -- under one or more contributor license agreements. See the NOTICE file
  -- distributed with this work for additional information regarding copyright
  -- ownership. Camunda licenses this file to you under the Apache License,
  -- Version 2.0; you may not use this file except in compliance with the License.
  -- You may obtain a copy of the License at
  --
  --     http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  --
  
  drop index ACT_IDX_HI_PRO_INST_END;
  drop index ACT_IDX_HI_PRO_I_BUSKEY;
  drop index ACT_IDX_HI_PRO_INST_TENANT_ID;
  drop index ACT_IDX_HI_PRO_INST_PROC_DEF_KEY;
  drop index ACT_IDX_HI_PRO_INST_PROC_TIME;
  drop index ACT_IDX_HI_PI_PDEFID_END_TIME;
  drop index ACT_IDX_HI_PRO_INST_ROOT_PI;
  drop index ACT_IDX_HI_PRO_INST_RM_TIME;
  
  drop index ACT_IDX_HI_ACTINST_ROOT_PI;
  drop index ACT_IDX_HI_ACT_INST_START;
  drop index ACT_IDX_HI_ACT_INST_END;
  drop index ACT_IDX_HI_ACT_INST_PROCINST;
  drop index ACT_IDX_HI_ACT_INST_COMP;
  drop index ACT_IDX_HI_ACT_INST_STATS;
  drop index ACT_IDX_HI_ACT_INST_TENANT_ID;
  drop index ACT_IDX_HI_ACT_INST_PROC_DEF_KEY;
  drop index ACT_IDX_HI_AI_PDEFID_END_TIME;
  drop index ACT_IDX_HI_ACT_INST_RM_TIME;
  
  drop index ACT_IDX_HI_TASKINST_ROOT_PI;
  drop index ACT_IDX_HI_TASK_INST_TENANT_ID;
  drop index ACT_IDX_HI_TASK_INST_PROC_DEF_KEY;
  drop index ACT_IDX_HI_TASKINST_PROCINST;
  drop index ACT_IDX_HI_TASKINSTID_PROCINST;
  drop index ACT_IDX_HI_TASK_INST_RM_TIME;
  drop index ACT_IDX_HI_TASK_INST_START;
  drop index ACT_IDX_HI_TASK_INST_END;
  
  drop index ACT_IDX_HI_IDENT_LNK_ROOT_PI;
  drop index ACT_IDX_HI_IDENT_LNK_USER;
  drop index ACT_IDX_HI_IDENT_LNK_GROUP;
  drop index ACT_IDX_HI_IDENT_LNK_TENANT_ID;
  drop index ACT_IDX_HI_IDENT_LNK_PROC_DEF_KEY;
  drop index ACT_IDX_HI_IDENT_LINK_TASK;
  drop index ACT_IDX_HI_IDENT_LINK_RM_TIME;
  drop index ACT_IDX_HI_IDENT_LNK_TIMESTAMP;
  
  drop index ACT_IDX_HI_DETAIL_ROOT_PI;
  drop index ACT_IDX_HI_DETAIL_PROC_INST;
  drop index ACT_IDX_HI_DETAIL_ACT_INST;
  drop index ACT_IDX_HI_DETAIL_CASE_INST;
  drop index ACT_IDX_HI_DETAIL_CASE_EXEC;
  drop index ACT_IDX_HI_DETAIL_TIME;
  drop index ACT_IDX_HI_DETAIL_NAME;
  drop index ACT_IDX_HI_DETAIL_TASK_ID;
  drop index ACT_IDX_HI_DETAIL_TENANT_ID;
  drop index ACT_IDX_HI_DETAIL_PROC_DEF_KEY;
  drop index ACT_IDX_HI_DETAIL_BYTEAR;
  drop index ACT_IDX_HI_DETAIL_RM_TIME;
  drop index ACT_IDX_HI_DETAIL_TASK_BYTEAR;
  
  drop index ACT_IDX_HI_VARINST_ROOT_PI;
  drop index ACT_IDX_HI_PROCVAR_PROC_INST;
  drop index ACT_IDX_HI_PROCVAR_NAME_TYPE;
  drop index ACT_IDX_HI_CASEVAR_CASE_INST;
  drop index ACT_IDX_HI_VAR_INST_TENANT_ID;
  drop index ACT_IDX_HI_VAR_INST_PROC_DEF_KEY;
  drop index ACT_IDX_HI_VARINST_BYTEAR;
  drop index ACT_IDX_HI_VARINST_RM_TIME;
  
  drop index ACT_IDX_HI_INCIDENT_TENANT_ID;
  drop index ACT_IDX_HI_INCIDENT_PROC_DEF_KEY;
  drop index ACT_IDX_HI_INCIDENT_ROOT_PI;
  drop index ACT_IDX_HI_INCIDENT_PROCINST;
  drop index ACT_IDX_HI_INCIDENT_RM_TIME;
  
  drop index ACT_IDX_HI_JOB_LOG_ROOT_PI;
  drop index ACT_IDX_HI_JOB_LOG_PROCINST;
  drop index ACT_IDX_HI_JOB_LOG_PROCDEF;
  drop index ACT_IDX_HI_JOB_LOG_TENANT_ID;
  drop index ACT_IDX_HI_JOB_LOG_JOB_DEF_ID;
  drop index ACT_IDX_HI_JOB_LOG_PROC_DEF_KEY;
  drop index ACT_IDX_HI_JOB_LOG_EX_STACK;
  drop index ACT_IDX_HI_JOB_LOG_RM_TIME;
  
  drop index ACT_HI_EXT_TASK_LOG_ROOT_PI;
  drop index ACT_HI_EXT_TASK_LOG_PROCINST;
  drop index ACT_HI_EXT_TASK_LOG_PROCDEF;
  drop index ACT_HI_EXT_TASK_LOG_PROC_DEF_KEY;
  drop index ACT_HI_EXT_TASK_LOG_TENANT_ID;
  drop index ACT_IDX_HI_EXTTASKLOG_ERRORDET;
  drop index ACT_HI_EXT_TASK_LOG_RM_TIME;
  
  drop index ACT_HI_BAT_RM_TIME;
  
  drop index ACT_IDX_HI_OP_LOG_ROOT_PI;
  drop index ACT_IDX_HI_OP_LOG_PROCINST;
  drop index ACT_IDX_HI_OP_LOG_PROCDEF;
  drop index ACT_IDX_HI_OP_LOG_TASK;
  drop index ACT_IDX_HI_OP_LOG_RM_TIME;
  drop index ACT_IDX_HI_OP_LOG_TIMESTAMP;
  drop index ACT_IDX_HI_OP_LOG_USER_ID;
  drop index ACT_IDX_HI_OP_LOG_OP_TYPE;
  drop index ACT_IDX_HI_OP_LOG_ENTITY_TYPE;
  
  drop index ACT_IDX_HI_ATTACHMENT_CONTENT;
  drop index ACT_IDX_HI_ATTACHMENT_ROOT_PI;
  drop index ACT_IDX_HI_ATTACHMENT_PROCINST;
  drop index ACT_IDX_HI_ATTACHMENT_TASK;
  drop index ACT_IDX_HI_ATTACHMENT_RM_TIME;
  
  drop index ACT_IDX_HI_COMMENT_TASK;
  drop index ACT_IDX_HI_COMMENT_ROOT_PI;
  drop index ACT_IDX_HI_COMMENT_PROCINST;
  drop index ACT_IDX_HI_COMMENT_RM_TIME;
  
  drop table ACT_HI_PROCINST;
  drop table ACT_HI_ACTINST;
  drop table ACT_HI_VARINST;
  drop table ACT_HI_TASKINST;
  drop table ACT_HI_DETAIL;
  drop table ACT_HI_COMMENT;
  drop table ACT_HI_ATTACHMENT;
  drop table ACT_HI_OP_LOG;
  drop table ACT_HI_INCIDENT;
  drop table ACT_HI_JOB_LOG;
  drop table ACT_HI_BATCH;
  drop table ACT_HI_IDENTITYLINK;
  drop table ACT_HI_EXT_TASK_LOG;
  