ClickHouse/src/Parsers/ParserSetQuery.h
2022-08-12 14:28:35 +02:00

30 lines
776 B
C++

#pragma once
#include <Parsers/IParserBase.h>
#include <Parsers/ExpressionElementParsers.h>
namespace DB
{
struct SettingChange;
constexpr char QUERY_PARAMETER_NAME_PREFIX[] = "param_";
/** Query like this:
* SET name1 = value1, name2 = value2, ...
*/
class ParserSetQuery : public IParserBase
{
public:
explicit ParserSetQuery(bool parse_only_internals_ = false) : parse_only_internals(parse_only_internals_) {}
static bool parseNameValuePair(SettingChange & change, IParser::Pos & pos, Expected & expected);
protected:
const char * getName() const override { return "SET query"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
/// Parse the list `name = value` pairs, without SET.
bool parse_only_internals;
};
}