15.00 - UncompressReservedSpace - Teradata Database

Teradata Database Utilities

Product
Teradata Database
Release Number
15.00
Content Type
Configuration
Publication ID
B035-1102-015K
Language
English (United States)
Last Update
2018-09-25

UncompressReservedSpace

Purpose  

Specifies the minimum percentage of storage space that must remain available while DBs are uncompressed using the Ferret UNCOMPRESS command. The uncompress operation is terminated at the point where this threshold would be exceeded.

Field Group

Compression

Valid Range

1 through 90%

Default

20%

Changes Take Effect

After the DBS Control Record has been written.

Usage Notes  

The table undergoing decompression at the time this value is exceeded may remain in a partially compressed state. This will not affect the functioning of the table or database. To make the table DBs consistent with respect to compression, either issue the Ferret COMPRESS command, or free some storage space, then reissue the UNCOMPRESS command.

Set this value to represent the expected peak amount of required spool space.

Related Topics

 

For more information on...

See...

COMPRESS and UNCOMPRESS commands

Chapter 13: “Ferret Utility (ferret).”