ClickHouse/programs/odbc-bridge/ColumnInfoHandler.h

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#pragma once
#include <Common/config.h>
#include <Interpreters/Context.h>
#include <Poco/Logger.h>
#include <Poco/Net/HTTPRequestHandler.h>
#if USE_POCO_SQLODBC || USE_POCO_DATAODBC
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/** The structure of the table is taken from the query "SELECT * FROM table WHERE 1=0".
* TODO: It would be much better to utilize ODBC methods dedicated for columns description.
* If there is no such table, an exception is thrown.
*/
namespace DB
{
class ODBCColumnsInfoHandler : public Poco::Net::HTTPRequestHandler
{
public:
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ODBCColumnsInfoHandler(size_t keep_alive_timeout_, Context & context_)
: log(&Poco::Logger::get("ODBCColumnsInfoHandler")), keep_alive_timeout(keep_alive_timeout_), context(context_)
{
}
void handleRequest(Poco::Net::HTTPServerRequest & request, Poco::Net::HTTPServerResponse & response) override;
private:
Poco::Logger * log;
size_t keep_alive_timeout;
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Context & context;
};
}
#endif