IDS 文件中提到：

Although a 4-terabyte chunk can be on a 2-kilobyte page,only 32 gigabtyes can be utilized in a dbspace beause of a row ID format limitation.

is it true ?
How about IDS 11.0 ?

That's not all the truth in both IDS 10 and IDS 11.

It depends on page size and this limit is per table fragment instead of table.

With configurable page size of 16k bytes you can store 2 to the 24th 16,777,000 pages or about 274,877,906,944 bytes or
274 GB per partition fragment. For a 2k page size this number would be 32 GB approximately.

You can place a number of these fragments in the same dbspace now for the same partition.