V$VECTOR_INDEX

This fixed view provides diagnostic information about vector indexes and is available with Autonomous Database Serverless (ADB-S).

Column Name Data Type Description

OWNER

VARCHAR(129)

User name of the vector index owner

INDEX_NAME

VARCHAR(129)

Name of the vector index

PARTITION_NAME

VARCHAR(129)

Object partition name (set to NULL for non-partitioned objects)

INDEX_ORGANIZATION

VARCHAR(129)
The vector index organization. The value can be one of the following:
  • NEIGHBOR PARTITIONS
  • INMEMORY NEIGHBOR GRAPH

INDEX_OBJN

NUMBER

Index object number

ALLOCATED_BYTES

NUMBER

Total amount of memory allocated to this vector index, in bytes.

When the vector index is an IVF index, the value is 0.

USED_BYTES

NUMBER

Total amount of memory currently used by the vector index, in bytes.

When the vector index is an IVF index, the value is 0.

NUM_VECTORS

NUMBER

The number of vectors currently indexed in the main-memory storage of the index as of the latest snapshot

NUM_REPOP

NUMBER

Number of times this index has been repopulated

INDEX_USED_COUNT

NUMBER

Number of times this vector index has been used by queries

DISTANCE_TYPE

VARCHAR2(129)
Possible distance values:
  • EUCLIDEAN
  • EUCLIDEAN_SQUARED
  • COSINE
  • DOT
  • MANHATTAN
  • HAMMING

INDEX_DIMENSIONS

NUMBER

Number of dimensions of the indexed vector

INDEX_DIM_TYPE

VARCHAR2(129)

Type of the dimensions of the index vector.

Possible values:
  • FLOAT16
  • FLOAT32
  • FLOAT64
  • INT8

DEFAULT_ACCURACY

NUMBER

The accuracy to achieve when performing approximate search on this vector index if a target query accuracy is not provided

CON_ID

NUMBER
The ID of the container to which the data pertains. Possible values include the following:
  • 0: This value is used for rows containing data that pertain to the entire multitenant container database (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.

Parent topic: Vector Index and Hybrid Vector Index Views