<datasource jndi-name="java:/Teste" pool-name="Teste" enabled="true">
    <connection-url>jdbc:postgresql://localhost:5432/teste</connection-url>
    <driver-class>org.postgresql.Driver</driver-class>
    <datasource-class>org.postgresql.ds.PGSimpleDataSource</datasource-class>
    <driver>postgres</driver>
    <security>
        <user-name>postgres</user-name>
        <password>senha</password>
    </security>
    <validation>
        <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.postgres.PostgreSQLValidConnectionChecker"/>
        <background-validation>true</background-validation>
        <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.postgres.PostgreSQLExceptionSorter"/>
    </validation>
</datasource>