Links updated

docs/ru/operations/utilities/clickhouse-compressor.md

@@ -0,0 +1,27 @@
+## ClickHouse compressor
+
+Simple program for data compression and decompression.
+
+### Examples
+
+Compress data with LZ4:
+```
+$ ./clickhouse-compressor < input_file > output_file
+```
+
+Decompress data from LZ4 format:
+```
+$ ./clickhouse-compressor --decompress < input_file > output_file
+```
+
+Compress data with ZSTD at level 5:
+
+```
+$ ./clickhouse-compressor --codec 'ZSTD(5)' < input_file > output_file
+```
+
+Compress data with Delta of four bytes and ZSTD level 10.
+
+```
+$ ./clickhouse-compressor --codec 'Delta(4)' --codec 'ZSTD(10)' < input_file > output_file
+```

docs/ru/operations/utilities/index.md

@@ -11,5 +11,5 @@ toc_title: "Обзор"
 -   [clickhouse-benchmark](../../operations/utilities/clickhouse-benchmark.md) — устанавливает соединение с сервером ClickHouse и запускает циклическое выполнение указанных запросов.
 -   [clickhouse-format](../../operations/utilities/clickhouse-format.md) — позволяет форматировать входящие запросы.
 -   [ClickHouse obfuscator](../../operations/utilities/clickhouse-obfuscator.md) — обфусцирует данные.
--   [ClickHouse compressor](https://clickhouse.tech/docs/en/operations/utilities/clickhouse-compressor) — упаковывает и распаковывает данные.
--   [clickhouse-odbc-bridge](https://clickhouse.tech/docs/en/operations/utilities/odbc-bridge) — прокси-сервер для ODBC.
+-   [ClickHouse compressor](../../operations/utilities/clickhouse-compressor.md) — упаковывает и распаковывает данные.
+-   [clickhouse-odbc-bridge](../../operations/utilities/odbc-bridge.md) — прокси-сервер для ODBC.

docs/ru/operations/utilities/odbc-bridge.md

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+# clickhouse-odbc-bridge
+
+Simple HTTP-server which works like a proxy for ODBC driver. The main motivation
+was possible segfaults or another faults in ODBC implementations, which can
+crash whole clickhouse-server process.
+
+This tool works via HTTP, not via pipes, shared memory, or TCP because:
+- It's simpler to implement
+- It's simpler to debug
+- jdbc-bridge can be implemented in the same way
+
+## Usage
+
+`clickhouse-server` use this tool inside odbc table function and StorageODBC.
+However it can be used as standalone tool from command line with the following
+parameters in POST-request URL:
+- `connection_string` -- ODBC connection string.
+- `columns` -- columns in ClickHouse NamesAndTypesList format, name in backticks,
+  type as string. Name and type are space separated, rows separated with
+  newline.
+- `max_block_size` -- optional parameter, sets maximum size of single block.
+Query is send in post body. Response is returned in RowBinary format.
+
+## Example:
+
+```bash
+$ clickhouse-odbc-bridge --http-port 9018 --daemon
+
+$ curl -d "query=SELECT PageID, ImpID, AdType FROM Keys ORDER BY PageID, ImpID" --data-urlencode "connection_string=DSN=ClickHouse;DATABASE=stat" --data-urlencode "columns=columns format version: 1
+3 columns:
+\`PageID\` String
+\`ImpID\` String
+\`AdType\` String
+"  "http://localhost:9018/" > result.txt
+
+$ cat result.txt
+12246623837185725195925621517
+```