TABLEAU-BASICS5 MIN READ
Context Filter Before Top N
Choose a context filter when a Top N must be computed inside a subset.
Tableau has a filter order of operations. Dimension filters and Top N dimension filters can execute at the same stage, which means the “top” can be computed before the subset behaves the way you expect. A context filter changes precedence: it defines a subset that later dimension filters, including Top N, can operate inside. The mechanism is query pipeline control.
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