Method init

sql/sql_array.h:129–132

  }

  void init(PSI_memory_key psi_key, size_t prealloc=16, size_t increment=16)
  {
    init_dynamic_array2(psi_key, &array, sizeof(Elem), 0, prealloc, increment, MYF(0));
  }

  /**
     @note Though formally this could be declared "const" it would be