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- Provides the result deterministically (it doesn't depend on the query processing order).
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!! note "Note"
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Since it uses 32-bit hash for non-`String` type, the result will have very high error for cardinalities > `UINT_MAX`, hence in this case you should use [uniqCombined64](#agg_function-uniqcombined64)
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Since it uses 32-bit hash for non-`String` type, the result will have very high error for cardinalities significantly larger than `UINT_MAX` (error will raise quickly after a few tens of billions of distinct values), hence in this case you should use [uniqCombined64](#agg_function-uniqcombined64)
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Compared to the [uniq](#agg_function-uniq) function, the `uniqCombined`:
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