V6.0-000 extends database limits - and more
V6.0-000 significantly extends database file limits:
- The maximum supported key size increases from 255 to 1,019 bytes.
- Global variable nodes need no longer fit within a database block. This opens opportunities for applications to consider smaller block sizes where these improve performance. Also, the new maximum global variable node size of 1,048,576 bytes (1 MiB) means that any local variable node can also be stored in a global variable.
- The maximum size of a database file is now 1,040,187,392 (992 Mi) blocks. Previously this limit was 234,881,024 (224 Mi) blocks.
For operations, MUPIP REORG TRUNCATE now reclaims and frees additional types of unused space from database files. The IO impact of MUPIP INTEG FAST has been reduced, which should speed it up in many cases.
As usual, there are smaller enhancements and bug fixes, detailed in the V6.0-000 Release Notes.