hugegraph-mysql/src/main/java/org/apache/hugegraph/backend/store/mysql/MysqlTables.java
hugegraph-palo/src/main/java/org/apache/hugegraph/backend/store/palo/PaloTables.java

hugegraph-mysql/src/main/java/org/apache/hugegraph/backend/store/mysql/MysqlFeatures.java
hugegraph-palo/src/main/java/org/apache/hugegraph/backend/store/palo/PaloFeatures.java

hugegraph-mysql/src/main/java/org/apache/hugegraph/backend/store/mysql/MysqlTable.java
hugegraph-palo/src/main/java/org/apache/hugegraph/backend/store/palo/PaloTable.java