* Using docker/docker-swarm/docker-compose.yml to run pg and zk in ci_ut.yml

1. add initdb volume for pg service in docker-compose.yml
2. modify ci_ut.yml

* add sudo in ci_ut.yml

* Query the metadata of indexes is not correct in postgresql/dolphinscheduler_ddl.sql

1. replace information_schema.STATISTICS to pg_stat_all_indexes
2. modify ProcessDefinitionMapperTest.java

* Remove inner zk and pg

* add inner pg