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DOCS-355: gccMurmurHash (#10395)
* docs(gccMurmurHash):added the description of function * docs(gccMurmurHash):some changes * Update docs/en/sql_reference/functions/hash_functions.md Co-Authored-By: BayoNet <da-daos@yandex.ru> * Update docs/en/sql_reference/functions/hash_functions.md Co-Authored-By: BayoNet <da-daos@yandex.ru> * Update docs/en/sql_reference/functions/hash_functions.md Co-Authored-By: BayoNet <da-daos@yandex.ru> * docs(gccMurmurHash):some changes * docs(gccMurmurHash):added translation of the function description * CLICKHOUSEDOCS-355: Little fix. * Update docs/en/sql_reference/functions/hash_functions.md Co-Authored-By: Ilya Yatsishin <2159081+qoega@users.noreply.github.com> * CLICKHOUSEDOCS-355: Updated example Co-authored-by: asiana21 <asiana21@yandex-team.ru> Co-authored-by: AsiaKorushkina <43650329+AsiaKorushkina@users.noreply.github.com> Co-authored-by: Sergei Shtykov <bayonet@yandex-team.ru> Co-authored-by: Ilya Yatsishin <2159081+qoega@users.noreply.github.com>
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@ -345,6 +345,44 @@ SELECT murmurHash2_64(array('e','x','a'), 'mple', 10, toDateTime('2019-06-15 23:
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└──────────────────────┴────────┘
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```
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## gccMurmurHash {#gccmurmurhash}
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Calculates a 64-bit [MurmurHash2](https://github.com/aappleby/smhasher) hash value using the same hash seed as [gcc](https://github.com/gcc-mirror/gcc/blob/41d6b10e96a1de98e90a7c0378437c3255814b16/libstdc%2B%2B-v3/include/bits/functional_hash.h#L191). It is portable between CLang and GCC builds.
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**Syntax**
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```sql
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gccMurmurHash(par1, ...);
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```
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**Parameters**
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- `par1, ...` — A variable number of parameters that can be any of the [supported data types](../../sql_reference/data_types/index.md#data_types).
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**Returned value**
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- Calculated hash value.
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Type: [UInt64](../../sql_reference/data_types/int_uint.md).
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**Example**
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Query:
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```sql
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SELECT
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gccMurmurHash(1, 2, 3) AS res1,
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gccMurmurHash(('a', [1, 2, 3], 4, (4, ['foo', 'bar'], 1, (1, 2)))) AS res2
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```
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Result:
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``` text
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┌─────────────────res1─┬────────────────res2─┐
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│ 12384823029245979431 │ 1188926775431157506 │
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└──────────────────────┴─────────────────────┘
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```
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## murmurHash3\_32, murmurHash3\_64 {#murmurhash3-32-murmurhash3-64}
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Produces a [MurmurHash3](https://github.com/aappleby/smhasher) hash value.
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@ -441,4 +479,5 @@ Result:
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- [xxHash](http://cyan4973.github.io/xxHash/).
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[Original article](https://clickhouse.tech/docs/en/query_language/functions/hash_functions/) <!--hide-->
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@ -342,6 +342,44 @@ SELECT murmurHash2_64(array('e','x','a'), 'mple', 10, toDateTime('2019-06-15 23:
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└──────────────────────┴────────┘
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```
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## gccMurmurHash {#gccmurmurhash}
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Вычисляет 64-битное значение [MurmurHash2](https://github.com/aappleby/smhasher), используя те же hash seed, что и [gcc](https://github.com/gcc-mirror/gcc/blob/41d6b10e96a1de98e90a7c0378437c3255814b16/libstdc%2B%2B-v3/include/bits/functional_hash.h#L191).
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**Синтаксис**
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```sql
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gccMurmurHash(par1, ...);
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```
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**Параметры**
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- `par1, ...` — Переменное число параметров. Каждый параметр может быть любого из [поддерживаемых типов данных](../../data_types/index.md).
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**Возвращаемое значение**
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- Вычисленный хэш-код.
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Тип: [UInt64](../../data_types/int_uint.md).
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**Примеры**
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Запрос:
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```sql
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SELECT
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gccMurmurHash(1, 2, 3) AS res1,
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gccMurmurHash(('a', [1, 2, 3], 4, (4, ['foo', 'bar'], 1, (1, 2)))) AS res2
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```
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Результат:
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``` text
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┌─────────────────res1─┬────────────────res2─┐
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│ 12384823029245979431 │ 1188926775431157506 │
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└──────────────────────┴─────────────────────┘
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```
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## murmurHash3\_32, murmurHash3\_64 {#murmurhash3-32-murmurhash3-64}
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Генерирует значение [MurmurHash3](https://github.com/aappleby/smhasher).
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