Function unlink_blobs

sql/sql_insert.cc:3822–3829

/* Remove all pointers to data for blob fields so that original table doesn't try to free them */

static void unlink_blobs(TABLE *table)
{
  for (Field **ptr=table->field ; *ptr ; ptr++)
  {
    if ((*ptr)->flags & BLOB_FLAG)
      ((Field_blob *) (*ptr))->clear_temporary();
  }
}

/* Free blobs stored in current row */