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added docs
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@ -18,6 +18,7 @@ The list of third-party libraries:
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| aws-c-common | [Apache](https://github.com/ClickHouse-Extras/aws-c-common/blob/736a82d1697c108b04a277e66438a7f4e19b6857/LICENSE) |
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| aws-c-event-stream | [Apache](https://github.com/ClickHouse-Extras/aws-c-event-stream/blob/3bc33662f9ccff4f4cbcf9509cc78c26e022fde0/LICENSE) |
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| aws-checksums | [Apache](https://github.com/ClickHouse-Extras/aws-checksums/blob/519d6d9093819b6cf89ffff589a27ef8f83d0f65/LICENSE) |
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| base58 | [MIT](https://github.com/ClickHouse/base-x/blob/3e58874643c087f57e82b0ff03825c933fab945a/LICENSE) |
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| base64 | [BSD 2-clause](https://github.com/ClickHouse-Extras/Turbo-Base64/blob/af9b331f2b4f30b41c70f3a571ff904a8251c1d3/LICENSE) |
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| boost | [Boost](https://github.com/ClickHouse-Extras/boost/blob/9cf09dbfd55a5c6202dedbdf40781a51b02c2675/LICENSE_1_0.txt) |
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| boringssl | [BSD](https://github.com/ClickHouse-Extras/boringssl/blob/a6a2e2ab3e44d97ce98e51c558e989f211de7eb3/LICENSE) |
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@ -440,3 +440,46 @@ Result:
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│ [0,1,2,3,4,5,6,7] │
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└───────────────────┘
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```
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## Base58Encode(plaintext[, alphabet_name])
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## Base58Decode(plaintext[, alphabet_name])
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Accepts a String and encodes/decodes it using [Base58](https://tools.ietf.org/id/draft-msporny-base58-01.html) encoding scheme using specified alphabet.
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**Syntax**
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```sql
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base58Encode(decoded[, alphabet_name])
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base58Decode(encoded[, alphabet_name])
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```
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**Arguments**
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- `decoded` — [String](../../sql-reference/data-types/string.md) column or constant.
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- `encoded` — [String](../../sql-reference/data-types/string.md) column or constant. If the string is not a valid base58-encoded value, `1001 Exception` will be thrown.
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- `alphabet_name` — String constant. Specifies alphabet used for encoding. Possible values: `gmp`, `bitcoin`, `ripple`, `flickr`. Default: `gmp`.
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**Returned value**
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- A string containing encoded/decoded value of 1st argument.
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Type: [String](../../sql-reference/data-types/string.md).
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**Example**
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Query:
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``` sql
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SELECT base58Encode('encode', 'flickr');
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SELECT base58Decode('izCFiDUY', 'ripple');
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```
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Result:
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```text
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┌─base58Encode('encode', 'flickr')─┐
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│ SvyTHb1D │
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└──────────────────────────────────┘
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┌─base58Decode('izCFiDUY', 'ripple')─┐
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│ decode │
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└────────────────────────────────────┘
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```
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@ -18,6 +18,7 @@ sidebar_label: "Используемые сторонние библиотеки
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| aws-c-common | [Apache](https://github.com/ClickHouse-Extras/aws-c-common/blob/736a82d1697c108b04a277e66438a7f4e19b6857/LICENSE) |
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| aws-c-event-stream | [Apache](https://github.com/ClickHouse-Extras/aws-c-event-stream/blob/3bc33662f9ccff4f4cbcf9509cc78c26e022fde0/LICENSE) |
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| aws-checksums | [Apache](https://github.com/ClickHouse-Extras/aws-checksums/blob/519d6d9093819b6cf89ffff589a27ef8f83d0f65/LICENSE) |
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| base58 | [MIT](https://github.com/ClickHouse/base-x/blob/3e58874643c087f57e82b0ff03825c933fab945a/LICENSE) |
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| base64 | [BSD 2-clause](https://github.com/ClickHouse-Extras/Turbo-Base64/blob/af9b331f2b4f30b41c70f3a571ff904a8251c1d3/LICENSE) |
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| boost | [Boost](https://github.com/ClickHouse-Extras/boost/blob/9cf09dbfd55a5c6202dedbdf40781a51b02c2675/LICENSE_1_0.txt) |
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| boringssl | [BSD](https://github.com/ClickHouse-Extras/boringssl/blob/a6a2e2ab3e44d97ce98e51c558e989f211de7eb3/LICENSE) |
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@ -404,3 +404,47 @@ SELECT bitPositionsToArray(toInt8(-1)) AS bit_positions;
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│ [0,1,2,3,4,5,6,7] │
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└───────────────────┘
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```
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## Base58Encode(plaintext[, alphabet_name])
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## Base58Decode(plaintext[, alphabet_name])
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Принимает на вход строку или колонку строк и кодирует/раскодирует их с помощью схемы кодирования [Base58](https://tools.ietf.org/id/draft-msporny-base58-01.html) с использованием указанного алфавита.
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**Синтаксис**
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```sql
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base58Encode(decoded[, alphabet_name])
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base58Decode(encoded[, alphabet_name])
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```
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**Аргументы**
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- `decoded` — Колонка или строка типа [String](../../sql-reference/data-types/string.md).
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- `encoded` — Колонка или строка типа [String](../../sql-reference/data-types/string.md). Если входная строка не является корректным кодом для какой-либо другой строки, возникнет исключение `1001`.
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- `alphabet_name` — Строковая константа. Указывает алфавит, для которого необходимо получить код. Может принимать одно из следующих значений: `gmp`, `bitcoin`, `ripple`, `flickr`. По умолчанию: `gmp`.
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**Возвращаемое значение**
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- Строка, содержащая раскодированный/закодированный первый аргумент.
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Тип: [String](../../sql-reference/data-types/string.md).
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**Пример:**
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Запрос:
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``` sql
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SELECT base58Encode('encode', 'flickr');
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SELECT base58Decode('izCFiDUY', 'ripple');
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```
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Результат:
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```text
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┌─base58Encode('encode', 'flickr')─┐
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│ SvyTHb1D │
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└──────────────────────────────────┘
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┌─base58Decode('izCFiDUY', 'ripple')─┐
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│ decode │
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└────────────────────────────────────┘
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```
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