ClickHouse/programs/odbc-bridge/getIdentifierQuote.cpp

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#include "getIdentifierQuote.h"
#if USE_ODBC
# include <Poco/Data/ODBC/ODBCException.h>
# include <Poco/Data/ODBC/SessionImpl.h>
# include <Poco/Data/ODBC/Utility.h>
# define POCO_SQL_ODBC_CLASS Poco::Data::ODBC
namespace DB
{
std::string getIdentifierQuote(SQLHDBC hdbc)
{
std::string identifier;
SQLSMALLINT t;
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SQLRETURN r = POCO_SQL_ODBC_CLASS::SQLGetInfo(hdbc, SQL_IDENTIFIER_QUOTE_CHAR, nullptr, 0, &t);
if (POCO_SQL_ODBC_CLASS::Utility::isError(r))
throw POCO_SQL_ODBC_CLASS::ConnectionException(hdbc);
if (t > 0)
{
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// I have no idea, why to add '2' here, got from: contrib/poco/Data/ODBC/src/ODBCStatementImpl.cpp:60 (SQL_DRIVER_NAME)
identifier.resize(static_cast<std::size_t>(t) + 2);
if (POCO_SQL_ODBC_CLASS::Utility::isError(POCO_SQL_ODBC_CLASS::SQLGetInfo(
hdbc, SQL_IDENTIFIER_QUOTE_CHAR, &identifier[0], SQLSMALLINT((identifier.length() - 1) * sizeof(identifier[0])), &t)))
throw POCO_SQL_ODBC_CLASS::ConnectionException(hdbc);
identifier.resize(static_cast<std::size_t>(t));
}
return identifier;
}
}
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#endif