C:\Program Files\wildfly-8.2.0.Final\modules\system\layers\base\org\postgres\main\

  <?xml version="1.0" ?> 
- <module xmlns="urn:jboss:module:1.1" name="org.postgres">
- <resources>
  <resource-root path="postgresql-9.4-1201-jdbc41.jar" /> 
  </resources>
- <dependencies>
  <module name="javax.api" /> 
  <module name="javax.transaction.api" /> 
  </dependencies>
  </module>

http://localhost:9990/console/App.html#datasources

module add --name=org.postgres --resources=/postgresql-9.4-1201-jdbc41.jar --dependencies=javax.api,javax.transaction.api

/subsystem=datasources/jdbc-driver=postgres:add(driver-name="postgres",driver-module-name="org.postgres",driver-class-name=org.postgresql.Driver)

data-source add --jndi-name=java:/PostGreDS --name=PostgrePool --connection-url=jdbc:postgresql://localhost/**** --driver-name=postgres --user-name=**** --password=****

    <resource-ref>
        <res-ref-name>java:/PostGreDS</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
        <res-sharing-scope>Shareable</res-sharing-scope>
    </resource-ref>

<sql:query var="nskv" dataSource="java:/PostGreDS">
    SELECT nskv, x, y FROM nskv
</sql:query>

<table border="1">
    <!-- column headers -->
    <tr>
        <c:forEach var="columnName" items="${nskv.columnNames}">
            <th><c:out value="${columnName}"/></th>
            </c:forEach>
    </tr>
    <!-- column data -->
    <c:forEach var="row" items="${nskv.rowsByIndex}">
        <tr>
            <c:forEach var="column" items="${row}">
                <td><c:out value="${column}"/></td>
            </c:forEach>
        </tr>
    </c:forEach>
</table>