6.88 DBA_HIST_VECTOR_INDEX

DBA_HIST_VECTOR_INDEX displays historical statistics for diagnostic information about vector indexes.

This view is populated only on Oracle Autonomous AI Database Serverless (ADB-S). It contains snapshots of V$VECTOR_INDEX.

Column Datatype NULL Description

DBID

NUMBER

NOT NULL

Database ID for the snapshot

SNAP_ID

NUMBER

NOT NULL

Unique snapshot ID

INSTANCE_NUMBER

NUMBER

NOT NULL

Instance number for the snapshot

CON_DBID

NUMBER

The database ID of the PDB for the sampled session

INDEX_OBJN

NUMBER

NOT NULL

Index object number

CON_ID

NUMBER

The ID of the container that CON_DBID identifies. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data

INDEX_NAME

VARCHAR2(129)

Name of the index

INDEX_ORGANIZATION

VARCHAR2(129)

Type of index organization:

  • INMEMORY NEIGHBOR GRAPH

  • NEIGHBOR PARTITIONS

OWNER

VARCHAR2(129)

Owner of the index

ALLOCATED_BYTES

NUMBER

Total amount of memory allocated to the index (in bytes)

If the index is an IVF index, the value of this column is 0.

INDEX_USED_COUNT

NUMBER

Number of times the index has been used by queries

INDEX_USED_COUNT_DELTA

NUMBER

Delta value for index use by queries

Note:

This view is available starting with Oracle AI Database 26ai, Release Update 23.26.3.

See Also:

"V$VECTOR_INDEX"