mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 05:32:52 +00:00
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
#pragma once
|
|
|
|
#include <mysqlxx/Manip.h>
|
|
#include <DB/Parsers/IAST.h>
|
|
#include <DB/Parsers/ASTQueryWithOutput.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
|
|
/** Запрос SHOW TABLES или SHOW DATABASES
|
|
*/
|
|
class ASTShowTablesQuery : public ASTQueryWithOutput
|
|
{
|
|
public:
|
|
bool databases{false};
|
|
String from;
|
|
String like;
|
|
bool not_like{false};
|
|
|
|
ASTShowTablesQuery() = default;
|
|
ASTShowTablesQuery(const StringRange range_) : ASTQueryWithOutput(range_) {}
|
|
|
|
/** Получить текст, который идентифицирует этот элемент. */
|
|
String getID() const override { return "ShowTables"; };
|
|
|
|
ASTPtr clone() const override
|
|
{
|
|
auto res = std::make_shared<ASTShowTablesQuery>(*this);
|
|
res->children.clear();
|
|
cloneOutputOptions(*res);
|
|
return res;
|
|
}
|
|
|
|
protected:
|
|
void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override
|
|
{
|
|
if (databases)
|
|
{
|
|
settings.ostr << (settings.hilite ? hilite_keyword : "") << "SHOW DATABASES" << (settings.hilite ? hilite_none : "");
|
|
}
|
|
else
|
|
{
|
|
settings.ostr << (settings.hilite ? hilite_keyword : "") << "SHOW TABLES" << (settings.hilite ? hilite_none : "");
|
|
|
|
if (!from.empty())
|
|
settings.ostr << (settings.hilite ? hilite_keyword : "") << " FROM " << (settings.hilite ? hilite_none : "")
|
|
<< backQuoteIfNeed(from);
|
|
|
|
if (!like.empty())
|
|
settings.ostr << (settings.hilite ? hilite_keyword : "") << " LIKE " << (settings.hilite ? hilite_none : "")
|
|
<< mysqlxx::quote << like;
|
|
}
|
|
}
|
|
};
|
|
|
|
}
|