dbswitch-parent com.gitee.dbswitch 1.9.9 4.0.0 dbswitch-product pom dbswitch-register-product dbswitch-product-mysql dbswitch-product-oracle dbswitch-product-postgresql dbswitch-product-sqlserver dbswitch-product-db2 dbswitch-product-dm dbswitch-product-sybase dbswitch-product-kingbase dbswitch-product-oscar dbswitch-product-sqlite dbswitch-product-mariadb dbswitch-product-hive dbswitch-product-gbase dbswitch-product-openguass dbswitch-product-mongodb dbswitch-product-clickhouse dbswitch-product-elasticsearch dbswitch-product-highgo dbswitch-product-starrocks dbswitch-product-greenplum dbswitch-product-doris dbswitch-product-oceanbase