Method ptr

sql/sql_type.h:3722–3722

    LEX_CSTRING(lcs)
  { }
  const char *ptr() const { return LEX_CSTRING::str; }
  uint length() const { return (uint) LEX_CSTRING::length; }
  const LEX_CSTRING &lex_cstring() const { return *this; }
  bool eq(const LEX_CSTRING &other) const