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54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
#pragma once
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#include <DB/Parsers/IParserBase.h>
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#include <DB/Parsers/ParserQueryWithOutput.h>
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#include <DB/Parsers/CommonParsers.h>
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#include <DB/Parsers/ExpressionElementParsers.h>
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#include <DB/Parsers/ASTShowProcesslistQuery.h>
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namespace DB
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{
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/** Запрос SHOW PROCESSLIST
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*/
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class ParserShowProcesslistQuery : public ParserQueryWithOutput
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{
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protected:
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const char * getName() const { return "SHOW PROCESSLIST query"; }
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bool parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected)
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{
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Pos begin = pos;
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ParserString s_show("SHOW", true, true);
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ParserString s_processlist("PROCESSLIST", true, true);
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ASTShowProcesslistQuery * query = new ASTShowProcesslistQuery;
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ASTPtr query_ptr = query;
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ws.ignore(pos, end);
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if (!s_show.ignore(pos, end, max_parsed_pos, expected))
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return false;
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ws.ignore(pos, end);
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if (!s_processlist.ignore(pos, end, max_parsed_pos, expected))
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return false;
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ws.ignore(pos, end);
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/// FORMAT format_name
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if (!parseFormat(*query, pos, end, node, max_parsed_pos, expected))
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return false;
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query->range = StringRange(begin, pos);
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node = query_ptr;
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return true;
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}
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};
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}
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