Drilldown hidden fields inaccessible

[andywins]

Given a result set with four fields, I find only the first two fields are accessible within a drilldown. Example:

stats count by a b c | fields a count b c

• $click.value$ - <true value for field "a">
• $click.value2$ - <true value for field "count">
• $click.name$ - "a"
• $click.name2$ - "count"
• $row.a$ - <true value for field "a">
• $row.count$ - <true value for field "count">
• $row.b$ - "$row.b$"
• $row.c$ - "$row.c$"

I'm unable to access the true values for fields "b" and "c". Are these fields inaccessible due to my visualization (pie chart), a limitation of simple xml or my lack of knowledge on alternative referencing tokens? I'd hate to move to advanced xml with sideview utils considering the good direction Splunk is heading with simple xml.

[ramdaspr]

Looks like it might be a Visualization limitation for Pie Chart

If the table generated by the search contains additional columns, those extra columns have no meaning in the terms of the pie chart and are ignored.

[ramdaspr]

It seems the visualization is the problem. I tried out with one of my charts and when i move it to some other chart types (e.g. bar) It seems to work fine and report all other fields but pie visaulization removes all but the details which are displayed on the pie chart.