kangkaisen opened a new issue #3095: Rewrite count distinct for bitmap and HLL URL: https://github.com/apache/incubator-doris/issues/3095 1. for bitmap type, we rewrite count distinct to bitmap_union_count 2. for hll type, we rewrite count distinct to hll_union_agg Why rewrite count distinct for bitmap and HLL ? 1. keep compatible with tableau 2. keep compatible with Kylin
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