bool ParserSetQuery::parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected)
{
Pos begin = pos;
ParserWhiteSpaceOrComments ws;
ParserString s_comma(",");
bool global = false;
if (!parse_only_internals)
{
ParserString s_set("SET", true, true);
ParserString s_global("GLOBAL", true, true);
ws.ignore(pos, end);
if (!s_set.ignore(pos, end, max_parsed_pos, expected))
return false;
ws.ignore(pos, end);
global = s_global.ignore(pos, end, max_parsed_pos, expected);
}
ASTSetQuery::Changes changes;
while (true)
{
ws.ignore(pos, end);
if (!changes.empty() && !s_comma.ignore(pos, end))
break;
ws.ignore(pos, end);
changes.push_back(ASTSetQuery::Change());
if (!parseNameValuePair(changes.back(), pos, end, max_parsed_pos, expected))
return false;
}
auto query = std::make_shared<ASTSetQuery>(StringRange(begin, pos));
node = query;
query->changes = changes;
query->global = global;
return true;
}
inline
bool parseNameIntegerPair(const std::string& token, std::string& name, int& value)
{
std::string strValue;
return parseNameValuePair(token, name, strValue, '=') && stringToInteger(strValue, value);
}
