290 Informix Dynamic Server V10 . . . Extended Functionality for Modern Business
ALTER FRAGMENT ON INDEX state_ind
MODIFY PARTITION az_part
TO PARTITION part_az (state = "AZ")
IN dbspace3;
ALTER FRAGMENT ON INDEX state_ind
INIT FRAGMENT BY EXPRESSION
PARTITION az_part (state = "AZ") IN dbspace2,
PARTITION ca_part (state = "CA") IN dbspace2,
PARTITION wa_part (state = "WA") IN dbspace3,
PARTITION ny_part (state = "NY") IN dbspace3,
REMAINDER IN dbspace3;
10.1.5 System catalog information for fragments
System catalog, sysfragments, has a partition column varchar (128,0) which
provides the partition name for a given fragment. If you create a fragmented table
with partitions, each row in the sysfragments system catalog contains a partition
name in the partition column. If you create a fragmented table without partitions,
the name of the dbspace appears in the partition column. The server will
continue to use the dbspace varchar(128,0) field for storing dbspace names.
Example 10-10 shows the sysfragments catalog entry for STATE = “AZ” fragment
expression.
Example 10-10 Sysfragments catalog entry
> SELECT * FROM sysfragments WHERE partition ="az_part";
fragtype T
tabid 102
indexname
colno 0
partn 2097159
strategy E
location L
servername
evalpos 0
exprtext (state = 'AZ' )
exprbin <BYTE value>
exprarr <BYTE value>
flags 0
dbspace dbspace1
levels 0

Get Informix Dynamic Server V10 . . . Extended Functionality for Modern Business now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.