Method index_blocks

sql/handler.cc:3722–3730

*/

ulonglong handler::index_blocks(uint index, uint ranges, ha_rows rows)
{
  if (!stats.block_size)
    return 0;                                   // No disk storage
  size_t len= table->key_storage_length(index);
  ulonglong blocks= (rows * len / INDEX_BLOCK_FILL_FACTOR_DIV *
                     INDEX_BLOCK_FILL_FACTOR_MUL) / stats.block_size + ranges;
  return blocks * stats.block_size / IO_SIZE;
}


/*