ad_sort_primary_key

one of the documented procedures in this installation of the ACS
Usage:
ad_sort_primary_key   orderby
What it does:
return the primary (first) key of an order spec used by
Defined in: /web/philip/packages/acs-core/table-display-procs.tcl

Source code: 


    if {[regexp {^([^*,]+)} $orderby match]} {
        return $match
    }
    return $orderby
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