Feras,
não funciona aumentar os <p:column> quando eu uso p:columnGroup ?
Digo isso porque quando eu tiro o p:columnGroup consigo deixar os p:column do tamanho que eu quiser.
<p:dataTable var=“infRequest” value="#{eManegerbean.listErequest}" >
<p:columnGroup type="header">
<p:row>
<p:column colspan="4" headerText="Entrada" />
<p:column colspan="3" headerText="Saída" />
</p:row>
<p:row>
<p:column headerText="Data Diponibilização" />
<p:column headerText="Nome Arquivo" style="text-align: center; width:60px; "/>
<p:column headerText="Qtde" />
<p:column headerText="Valor" />
<p:column colspan="3" headerText="" />
</p:row>
<p:row>
<p:column headerText="#{eManegerbean.dataArqEntrada}" />
<p:column headerText="#{eManegerbean.objetoTO.nomeArquivoEntrada}" />
<p:column headerText="#{eManegerbean.objetoTO.qtdeEntrada}" />
<p:column headerText="#{eManegerbean.getDecimalFormat('###,###.00', eManegerbean.objetoTO.valorEntrada)}" />
<p:column headerText="Nome Arquivo" />
<p:column headerText="Qtde" />
<p:column headerText="Valor" />
</p:row>
</p:columnGroup>
<p:column headerText="#{eManegerbean.dataArqEntrada}" style="width:10px"/>
<p:column headerText="#{eManegerbean.objetoTO.nomeArquivoEntrada}" style="width:80px"/>
<p:column headerText="#{eManegerbean.objetoTO.qtdeEntrada}" style="width:20px"/>
<p:column headerText="#{eManegerbean.getDecimalFormat('###,###.00', eManegerbean.objetoTO.valorEntrada)}" style="width:20px" />
<p:column headerText="Nome Arquivo Saída" style="width:100px; text-align:left;" >
<h:outputText value="#{infRequest.nomeArquivoSaida}" />
</p:column>
<p:column headerText="Qtde" style="width:20px">
<h:outputText value="#{infRequest.qtdeSaida}"/>
</p:column>
<p:column headerText="Valor" style="width:30px">
<h:outputText value="#{infRequest.valorSaida != null ? infRequest.valorSaida : '0,00'}" >
<f:convertNumber minFractionDigits="2" type="number" locale="pt_BR" />
</h:outputText>
</p:column>
<p:columnGroup type="footer" style="width:100%;">
<p:row>
<p:column colspan="2" style="text-align:left" footerText="Total:" />
<p:column footerText="#{eManegerbean.objetoTO.qtdeEntrada}" />
<p:column footerText="#{eManegerbean.getDecimalFormat('###,###.00', eManegerbean.objetoTO.valorEntrada)}" />
<p:column footerText="" />
<p:column footerText="#{eManegerbean.qtdeTotalRegistro}" />
<p:column footerText="#{eManegerbean.getDecimalFormat('###,###.00', eManegerbean.totalValor)}" />
</p:row>
</p:columnGroup>
</p:dataTable>