ClickHouse/dbms/Parsers/ASTDropQuery.cpp
2020-04-03 03:19:11 +03:00

74 lines
2.1 KiB
C++

#include <Parsers/ASTDropQuery.h>
#include <Common/quoteString.h>
namespace DB
{
namespace ErrorCodes
{
extern const int SYNTAX_ERROR;
}
String ASTDropQuery::getID(char delim) const
{
if (kind == ASTDropQuery::Kind::Drop)
return "DropQuery" + (delim + database) + delim + table;
else if (kind == ASTDropQuery::Kind::Detach)
return "DetachQuery" + (delim + database) + delim + table;
else if (kind == ASTDropQuery::Kind::Truncate)
return "TruncateQuery" + (delim + database) + delim + table;
else
throw Exception("Not supported kind of drop query.", ErrorCodes::SYNTAX_ERROR);
}
ASTPtr ASTDropQuery::clone() const
{
auto res = std::make_shared<ASTDropQuery>(*this);
cloneOutputOptions(*res);
return res;
}
void ASTDropQuery::formatQueryImpl(const FormatSettings & settings, FormatState &, FormatStateStacked) const
{
settings.ostr << (settings.hilite ? hilite_keyword : "");
if (kind == ASTDropQuery::Kind::Drop)
settings.ostr << "DROP ";
else if (kind == ASTDropQuery::Kind::Detach)
settings.ostr << "DETACH ";
else if (kind == ASTDropQuery::Kind::Truncate)
settings.ostr << "TRUNCATE ";
else
throw Exception("Not supported kind of drop query.", ErrorCodes::SYNTAX_ERROR);
if (temporary)
settings.ostr << "TEMPORARY ";
if (table.empty() && !database.empty())
settings.ostr << "DATABASE ";
else if (is_dictionary)
settings.ostr << "DICTIONARY ";
else if (is_view)
settings.ostr << "VIEW ";
else
settings.ostr << "TABLE ";
if (if_exists)
settings.ostr << "IF EXISTS ";
settings.ostr << (settings.hilite ? hilite_none : "");
if (table.empty() && !database.empty())
settings.ostr << backQuoteIfNeed(database);
else
settings.ostr << (!database.empty() ? backQuoteIfNeed(database) + "." : "") << backQuoteIfNeed(table);
formatOnCluster(settings);
if (no_delay)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " NO DELAY" << (settings.hilite ? hilite_none : "");
}
}