c-treeRTG for isCOBOL : Configuring the client : Configuring the client through CTREE_CONF : <keycompress>
<keycompress>
The keycompress option indicates whether to create files with key compression enabled. This feature is turned off by default. It may impact performance but reduces disk space usage.
Accepted Values
Value
Effect
Synonyms
yes
Turns on key compression combining both leading character and padding compression. This provides the maximum key compression.
y, true, on, 1
no
Turns off key compression.
n, false, off, 0
Additionally the keycompress option may accept the following sub-options to specify which compression type to use:
Option
Description
<leading>
Indicates to compress the leading characters of key values.
<padding>
Indicates to compress the padding characters of key values.
<rle>
Indicates to use RLE compression algorithm.
Attributes
Attribute
Description
Default value
vlennod
Use the new RLE compression or the legacy LEADING compression.
Values:
"yes" : Enable RLE, disable LEADING.
"no" : Disable RLE, enable LEADING.
yes
Examples
The following example turns on default key compression that implicitly uses leading and padding compression:
<keycompress>yes</keycompress>
The following example turns on padding key compression only:
<keycompress>
  <padding>yes</padding>
<keycompress>