mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-22 07:31:57 +00:00

History

alexey-milovidov c7863e1ac6 Clang Tidy, part 7 (#9799 ) * Attempt to enable identifier naming check * Attempt to enable identifier naming check, continue * Progress on identifier names * Adopt identifier names check * Fixed error * Merge with master * Fixed build * Fixed build * Fixed build * Fixed build * Fixed build * Fixed error * Fixed error * Fixed error		2020-03-23 05:12:31 +03:00
..
tests	Fix link in split mode (#4574 )	2019-03-04 20:47:31 +03:00
CMakeLists.txt	Fixed warning	2020-02-22 23:22:38 +03:00
ColumnInfoHandler.cpp	clang-tidy, part 22	2020-03-09 06:38:43 +03:00
ColumnInfoHandler.h	Update ColumnInfoHandler.h	2018-08-19 23:13:22 +03:00
getIdentifierQuote.cpp	DEVTOOLS-5170 Delete Y_IGNORE markers (#5533 )	2019-06-05 14:52:39 +03:00
getIdentifierQuote.h	DEVTOOLS-5170 Delete Y_IGNORE markers (#5533 )	2019-06-05 14:52:39 +03:00
HandlerFactory.cpp	Remove pocoext (#5036 )	2019-04-17 20:36:58 +03:00
HandlerFactory.h	Implement quote getter from ODBC	2018-09-27 18:23:42 +03:00
IdentifierQuoteHandler.cpp	DEVTOOLS-5170 Delete Y_IGNORE markers (#5533 )	2019-06-05 14:52:39 +03:00
IdentifierQuoteHandler.h	fix formatting errors according code review	2018-10-03 13:44:43 +03:00
MainHandler.cpp	Fix some spelling mistakes	2020-01-11 17:51:33 +08:00
MainHandler.h	CLICKHOUSE-3878: Move last interaction with ODBC from main code to bridge, split Handlers file on three different, slightly remove copy-paste code	2018-08-19 20:09:54 +03:00
odbc-bridge.cpp	CLICKHOUSE-3878: Add inherited fd's closing function	2018-08-12 15:23:22 +03:00
ODBCBlockInputStream.cpp	clang-tidy, part 22	2020-03-09 06:38:43 +03:00
ODBCBlockInputStream.h	adding -Wshadow for GCC	2019-08-09 23:58:16 +03:00
ODBCBridge.cpp	Clang Tidy, part 7 (#9799 )	2020-03-23 05:12:31 +03:00
ODBCBridge.h	CLICKHOUSE-3878: Move connection string validation to common, remove redundant headers, fix compilation issues	2018-08-14 13:33:41 +03:00
PingHandler.cpp	CLICKHOUSE-3878: Move last interaction with ODBC from main code to bridge, split Handlers file on three different, slightly remove copy-paste code	2018-08-19 20:09:54 +03:00
PingHandler.h	CLICKHOUSE-3878: Move last interaction with ODBC from main code to bridge, split Handlers file on three different, slightly remove copy-paste code	2018-08-19 20:09:54 +03:00
README.md	Fix typo in readme	2018-10-13 15:28:08 +03:00
validateODBCConnectionString.cpp	dbms: Fixed misspells in comments	2019-01-23 04:56:53 +09:00
validateODBCConnectionString.h	Fixed typos in code #3373	2018-10-13 17:33:43 +03:00

README.md

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:

$ 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