Brian Donovan d56d31b252 fix(chart): word cloud secondary sort prevents Druid TopN optimization when sort_by_metric enabled ...

When sort_by_metric is true, buildQuery unconditionally appended a
secondary ORDER BY series ASC alongside the metric sort. On Druid, any
multi-column ORDER BY prevents the native TopN query optimization,
forcing a full GroupBy scan that can cause dramatic slowdowns and
timeouts on high-cardinality dimensions.

Make the series sort mutually exclusive with sort_by_metric, and add
test coverage for both sort behaviors.

Fixes #39072

2026-04-13 12:24:35 -07:00

2.4 KiB

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