flink-connector-jdbc-postgres/src/main/java/org/apache/flink/connector/jdbc/postgres/database/dialect/PostgresDialect.java
flink-connector-jdbc-sqlserver/src/main/java/org/apache/flink/connector/jdbc/sqlserver/database/dialect/SqlServerDialect.java

flink-connector-jdbc-postgres/src/main/java/org/apache/flink/connector/jdbc/postgres/database/PostgresFactory.java
flink-connector-jdbc-sqlserver/src/main/java/org/apache/flink/connector/jdbc/sqlserver/database/SqlServerFactory.java