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org.postgresql

This bundle simply wraps postgresql-${postgresql.version}.jar.
jdbc4 simply bundle postgresql this wraps
Files download
File Operation
org.postgresql-9.1.901.jdbc4.1-rc3.jar download
org.postgresql-9.1.901.jdbc4.1-rc3.pom download
org.postgresql-9.1.901.jdbc4.1-rc3-sources.jar download
Apache Maven 
<dependency>
  <groupId>org.ancoron.postgresql</groupId>
  <artifactId>org.postgresql</artifactId>
  <version>9.1.901.jdbc4.1-rc3</version>
  <type>bundle</type>
</dependency>
Gradle Groovy 
implementation 'org.ancoron.postgresql:org.postgresql:9.1.901.jdbc4.1-rc3'
Gradle Kotlin 
implementation("org.ancoron.postgresql:org.postgresql:9.1.901.jdbc4.1-rc3")
Scala SBT 
libraryDependencies += "org.ancoron.postgresql" % "org.postgresql" % "9.1.901.jdbc4.1-rc3"
Groovy Grape 
@Grapes(
  @Grab(group='org.ancoron.postgresql', module='org.postgresql', version='9.1.901.jdbc4.1-rc3')
)
Apache Ivy 
<dependency org="org.ancoron.postgresql" name="org.postgresql" rev="9.1.901.jdbc4.1-rc3" />
Leiningen 
[org.ancoron.postgresql/org.postgresql "9.1.901.jdbc4.1-rc3"]
Apache Buildr 
'org.ancoron.postgresql:org.postgresql:jar:9.1.901.jdbc4.1-rc3'
Dependencies 
<parent>
  <groupId>org.ancoron.postgresql</groupId>
  <artifactId>pginet-parent</artifactId>
  <version>9.1.901.jdbc4.1-rc3</version>
</parent>

provided

|-- postgresql:postgresql