ClickHouse/dbms/src/Parsers/ParserKillQueryQuery.cpp

#include <DB/Parsers/ParserKillQueryQuery.h>
#include <DB/Parsers/ASTKillQueryQuery.h>

#include <DB/Parsers/ASTIdentifier.h>
#include <DB/Parsers/ASTLiteral.h>
#include <DB/Parsers/CommonParsers.h>
#include <DB/Parsers/ASTSelectQuery.h>
#include <DB/Parsers/ASTTablesInSelectQuery.h>
#include <DB/Parsers/ParserSelectQuery.h>
#include <DB/Parsers/ExpressionElementParsers.h>
#include <DB/Parsers/ExpressionListParsers.h>

#include <DB/Common/typeid_cast.h>

namespace DB
{


bool ParserKillQueryQuery::parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected)
{
    Pos begin = pos;
    auto query = std::make_shared<ASTKillQueryQuery>();

    ParserWhiteSpaceOrComments ws;

    ws.ignore(pos, end);

    if (!ParserString{"KILL", true, true}.ignore(pos, end, max_parsed_pos, expected))
        return false;

    ws.ignore(pos, end);

    if (!ParserString{"QUERY", true, true}.ignore(pos, end, max_parsed_pos, expected))
        return false;

    ws.ignore(pos, end);

    if (!ParserString{"WHERE", true, true}.ignore(pos, end, max_parsed_pos, expected))
        return false;

    ws.ignore(pos, end);

    ParserExpressionWithOptionalAlias p_where_expression(false);
    if (!p_where_expression.parse(pos, end, query->where_expression, max_parsed_pos, expected))
        return false;

    ws.ignore(pos, end);

    if (ParserString{"SYNC", true, true}.ignore(pos, end))
        query->sync = true;
    else if (ParserString{"ASYNC", true, true}.ignore(pos, end))
        query->sync = false;
    else if (ParserString{"TEST", true, true}.ignore(pos, end))
        query->test = true;
    else
        expected = "[SYNC|ASYNC|TEST]";

    ws.ignore(pos, end);

    query->range = StringRange(begin, pos);

    node = std::move(query);

    return true;
}

}