#pragma once #include namespace DB { class IColumn; struct SettingChange { String name; Field value; SettingChange() = default; SettingChange(const std::string_view & name_, const Field & value_) : name(name_), value(value_) {} SettingChange(const std::string_view & name_, Field && value_) : name(name_), value(std::move(value_)) {} friend bool operator ==(const SettingChange & lhs, const SettingChange & rhs) { return (lhs.name == rhs.name) && (lhs.value == rhs.value); } friend bool operator !=(const SettingChange & lhs, const SettingChange & rhs) { return !(lhs == rhs); } }; class SettingsChanges : public std::vector { public: using std::vector::vector; bool tryGet(const std::string_view & name, Field & out_value) const; const Field * tryGet(const std::string_view & name) const; Field * tryGet(const std::string_view & name); }; }