map fixed length to variable
Map fields with a fixed length storage format (CHAR) to a variable length storage format.
USYS$PGS_PARAMS
= map fixed length to variable :on | off
USYS$PGS_PARAMS
= fv:on | off
Description
If the setting is not specified, it defaults to off.
This setting can greatly reduce the disk space required for large table sets. However, it may also reduce the database performance by 20%-50%.
