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Returns additional information for this resultset.
string_view
info() const noexcept;
The format of this information is documented by MySQL here.
The returned string always uses ASCII encoding, regardless of the connection's character set.
this->has_value()
== true
No-throw guarantee.
The returned reference and any other references obtained from it are valid
as long as the object that *this
points to is alive.
Constant.