mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-17 20:02:05 +00:00
53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
#pragma once
|
|
|
|
#include <DB/Parsers/IParserBase.h>
|
|
#include <DB/Parsers/ParserQueryWithOutput.h>
|
|
#include <DB/Parsers/CommonParsers.h>
|
|
#include <DB/Parsers/ExpressionElementParsers.h>
|
|
#include <DB/Parsers/ASTShowProcesslistQuery.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
/** Запрос SHOW PROCESSLIST
|
|
*/
|
|
class ParserShowProcesslistQuery : public ParserQueryWithOutput
|
|
{
|
|
protected:
|
|
const char * getName() const { return "SHOW PROCESSLIST query"; }
|
|
|
|
bool parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected)
|
|
{
|
|
Pos begin = pos;
|
|
|
|
ParserString s_show("SHOW", true, true);
|
|
ParserString s_processlist("PROCESSLIST", true, true);
|
|
|
|
auto query = std::make_shared<ASTShowProcesslistQuery>();
|
|
|
|
ws.ignore(pos, end);
|
|
|
|
if (!s_show.ignore(pos, end, max_parsed_pos, expected))
|
|
return false;
|
|
|
|
ws.ignore(pos, end);
|
|
|
|
if (!s_processlist.ignore(pos, end, max_parsed_pos, expected))
|
|
return false;
|
|
|
|
ws.ignore(pos, end);
|
|
|
|
/// FORMAT format_name
|
|
if (!parseFormat(*query, pos, end, node, max_parsed_pos, expected))
|
|
return false;
|
|
|
|
query->range = StringRange(begin, pos);
|
|
node = query;
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
}
|