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By default uniqCombined() uses 32-bit hash for all types except String, so this means that you cannot use uniqCombined() with i.e UInt64 and cardinality > UINT_MAX, although you can use uniqCombined(toString()) and this will lead to 64-bit hash, but will not have good performance. So uniqCombined64() had been introduced to fix this. Requires: #7213 |
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| .. | ||
| agg_functions | ||
| dicts | ||
| functions | ||
| table_functions | ||
| alter.md | ||
| create.md | ||
| index.md | ||
| insert_into.md | ||
| misc.md | ||
| operators.md | ||
| select.md | ||
| syntax.md | ||
| system.md | ||