imay commented on issue #1221: Use multi condition cost much more time to return? URL: https://github.com/apache/incubator-doris/issues/1221#issuecomment-496956701 It is bad for Doris to handle OR predicate. For your query, Doris would read all data and do OR operation. It is bad when event_day is a partition column or index column, which can be used to avoid too much scan. And you can rewrite your query to `event_day` in ("20190526", "20190926"), which should be better
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