New upstream version 42.2.20

pom.xml

src/main/java/org/postgresql/core/Field.java

src/main/java/org/postgresql/jdbc/PgConnection.java

src/main/java/org/postgresql/jdbc/PgDatabaseMetaData.java

src/main/java/org/postgresql/jdbc/PgResultSet.java

src/main/java/org/postgresql/util/DriverInfo.java

src/main/resources/META-INF/MANIFEST.MF

src/test/java/org/postgresql/jdbc/ConnectionValidTest.java

.../java/org/postgresql/test/jdbc2/DatabaseMetaDataTest.java