Descriptions of user's own clusters
Columns
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CLUSTER_NAME
Name of the cluster
TABLESPACE_NAME
Name of the tablespace containing the cluster
PCT_FREE
Minimum percentage of free space in a block
PCT_USED
Minimum percentage of used space in a block
KEY_SIZE
Estimated size of cluster key plus associated rows
INI_TRANS
Initial number of transactions
MAX_TRANS
Maximum number of transactions
INITIAL_EXTENT
Size of the initial extent in bytes
NEXT_EXTENT
Size of secondary extents in bytes
MIN_EXTENTS
Minimum number of extents allowed in the segment
MAX_EXTENTS
Maximum number of extents allowed in the segment
PCT_INCREASE
Percentage increase in extent size
FREELISTS
Number of process freelists allocated in this segment
FREELIST_GROUPS
Number of freelist groups allocated in this segment
AVG_BLOCKS_PER_KEY
Average number of blocks containing rows with a given cluster key
CLUSTER_TYPE
Type of cluster: b-tree index or hash
FUNCTION
If a hash cluster,the hash function
HASHKEYS
If a hash cluster,the number of hash keys (hash buckets)
DEGREE
The number of threads per instance for scanning the cluster
INSTANCES
The number of instances across which the cluster is to be scanned
CACHE
Whether the cluster is to be cached in the buffer cache
BUFFER_POOL
The default buffer pool to be used for cluster blocks
SINGLE_TABLE
Whether the cluster can contain only a single table
DEPENDENCIES
Should we keep track of row level dependencies?