<dependency>
  <groupId>postgresql</groupId>
  <artifactId>postgresql</artifactId>
  <version>7.3</version>
</dependency>

implementation 'postgresql:postgresql:7.3'

implementation("postgresql:postgresql:7.3")

libraryDependencies += "postgresql" % "postgresql" % "7.3"

@Grapes(
  @Grab(group='postgresql', module='postgresql', version='7.3')
)

<dependency org="postgresql" name="postgresql" rev="7.3" />

[postgresql/postgresql "7.3"]

'postgresql:postgresql:jar:7.3'