flink-connector-jdbc-oracle/src/main/java/org/apache/flink/connector/jdbc/oracle/database/dialect/OracleDialect.java
flink-connector-jdbc-postgres/src/main/java/org/apache/flink/connector/jdbc/postgres/database/dialect/PostgresDialect.java

flink-connector-jdbc-oracle/src/main/java/org/apache/flink/connector/jdbc/oracle/database/OracleFactory.java
flink-connector-jdbc-postgres/src/main/java/org/apache/flink/connector/jdbc/postgres/database/PostgresFactory.java