List of fields and operators for AISearch-Object Storage Service(OSS)-阿里云帮助中心

Lists the fields and operators supported by the OSS AISearch pattern for retrieval.

Supported fields

When you use the OSSUserMeta.* field to query objects, replace the asterisk (*) with the key of the user metadata. The key is not case-sensitive, whereas the value is case-sensitive.

For example, if you want to query objects that contain the x-oss-meta-location=hangzhou user metadata field, set the query condition to {"Field": "OSSUserMeta.x-oss-meta-location", "Value": "hangzhou", "Operation": "eq"}.
When you use the OSSTagging.* field to query an object, replace the asterisk (*) with the key of an object tag. Both the keys and values of object tags are case-sensitive.

For example, if you want to query objects that contain the owner=John tag, set the query condition to {"Field": "OSSTagging.owner", "Value": "John", "Operation": "eq"}.

Category	Field	Description	Is This Field Retrievable	Field in the search results
Category	Field	Description	Is This Field Retrievable	Semantic content retrieval	Metadata condition (object quantity < 100 million)	Metadata condition (100 million < object quantity < 10 billion)
Basic information	URI	The path of the object.	✓	✓	✓	✓
	FileModifiedTime	The time when the object was last modified.	✓	✓	✓	✓
	Filename	File Name*	✓	✓	✓	✓
	Size	File size*	✓	✓	✓	✓
	MediaType	The type of the media.	✓	✓	×	×
	ContentType	MIME Type*	✓	✓	×	×
	ProduceTime	The time when the object was created.	✓	✓	×	×
	LatLong	Longitude and Latitude	✓	✓	×	×
	Title	Title	✓	✓	×	×
OSS object information	ObjectACL	Object Access Control	✓	✓	✓	✓
	ETag	ETag	✓	✓	✓	✓
	OSSCRC64	CRC64	✓	✓	✓	✓
	OSSObjectType	The type of the object.	✓	✓	✓	✓
	OSSStorageClass	Storage Class	✓	✓	✓	✓
	OSSTagging.*	The tags of the object.	✓	✓	✓	✓
	OSSTaggingCount	Number of Tags	✓	✓	✓	✓
	OSSUserMeta.*	The user metadata.	✓	✓	✓	×
	OSSExpiration	The time when the object expires.	✓	✓	✓	×
	AccessControlAllowOrigin	The origins from which cross-origin requests are allowed.	✓	✓	✓	×
	AccessControlRequestMethod	The allowed methods that are used to send cross-origin requests.	✓	✓	✓	×
	ServerSideDataEncryption	Object encryption algorithm	✓	✓	✓	×
	ServerSideEncryption	Object encryption methods	✓	✓	✓	×
	ServerSideEncryptionCustomerAlgorithm	The server-side encryption algorithm specified by the customer.	✓	✓	✓	×
	ServerSideEncryptionKeyId	Server-side encryption key	✓	✓	✓	×
	CacheControl	HTTP Cacheability	✓	✓	✓	×
	ContentDisposition	HTTP Response Handling	✓	✓	✓	×
	ContentEncoding	HTTP Response Encoding	✓	✓	✓	×
	ContentLanguage	HTTP Response Language	✓	✓	✓	×
Image information	ImageHeight	The height of the image.	✓	✓	×	×
Image information	ImageWidth	The width of the image.	✓	✓	×	×
Video information	VideoHeight	The height of the video.	✓	✓	×	×
	VideoWidth	The width of the video.	✓	✓	×	×
	VideoStreams.CodecName	Encoder Name	✓	✓	×	×
	VideoStreams.Language	Language	✓	✓	×	×
	VideoStreams.Bitrate	The bitrate of the video stream.	×	✓	×	×
	VideoStreams.FrameRate	Frame rate	×	✓	×	×
	VideoStreams.StartTime	Start Time	×	✓	×	×
	VideoStreams.Duration	The duration of the video stream.	×	✓	×	×
	VideoStreams.FrameCount	The number of video frames.	×	✓	×	×
	VideoStreams.BitDepth	Pixel Bit Depth	×	✓	×	×
	VideoStreams.PixelFormat	Pixel Format	×	✓	×	×
	VideoStreams.ColorSpace	Color Space	×	✓	×	×
	VideoStreams.Height	The height of the video resolution.	×	✓	×	×
	VideoStreams.Width	The width of the video resolution.	×	✓	×	×
Audio information	AudioStreams.CodecName	Encoder Name	✓	✓	×	×
	AudioStreams.Bitrate	The bitrate.	×	✓	×	×
	AudioStreams.SampleRate	The sampling rate.	×	✓	×	×
	AudioStreams.StartTime	Start Time	×	✓	×	×
	AudioStreams.Duration	Duration	×	✓	×	×
	AudioStreams.Channels	The number of sound channels.	×	✓	×	×
	AudioStreams.Language	Language	✓	✓	×	×
Subtitle information	Subtitles.CodecName	Encoder Name	✓	✓	×	×
	Subtitles.Language	The language of the subtitle.	✓	✓	×	×
	Subtitles.StartTime	Start time	×	✓	×	×
	Subtitles.Duration	The duration of the subtitle stream.	×	✓	×	×
Media information	Bitrate	The bitrate.	✓	✓	×	×
	Artist	The artist.	✓	✓	×	×
	AlbumArtist	The artist of the album.	✓	✓	×	×
	Composer	The composer.	✓	✓	×	×
	Performer	The performer.	✓	✓	×	×
	Album	Collection	✓	✓	×	×
	Duration	The duration of the media.	✓	✓	×	×
Geographic information	Addresses.AddressLine	The full address.	✓	✓	×	×
	Addresses.City	The city.	✓	✓	×	×
	Addresses.Country	The country.	✓	✓	×	×
	Addresses.District	The district.	✓	✓	×	×
	Addresses.Language	The language of the address.	✓	✓	×	×
	Addresses.Province	The province.	✓	✓	×	×
	Addresses.Township	Township	✓	✓	×	×

Operators supported by fields

Fields support the following query operators: eq (equal to), gt (greater than), gte (greater than or equal to), lt (less than), lte (less than or equal to), match-phrase (string query), prefix (prefix query), nested (logical condition queries within the same object when the data type of a field is ARRAY), and exist (exists query).
Fields support the following aggregation operators: min (minimum), max (maximum), average (average), sum (sum), count (count), distinct (distinct count), and group (group count).

Category

Field

Description

Query operator

Aggregation operator

Sort

eq, gt,

gte, lt, lte

match-phrase

prefix

nested

exist

min, max,

sum, average

count

distinct

group

Basic information

URI

The path of the object.

✓

FileModifiedTime

The time when the object was last modified.

✓

Filename

Filename*

✓

Size

File size*

✓

MediaType

The type of the media.

✓

ContentType

MIME type*

✓

ProduceTime

The time when the object was created.

✓

LatLong

Latitude and longitude

✓

Title

✓

OSS object information

ObjectACL

The ACL of the object.

✓

ETag

✓

OSSCRC64

CRC64

✓

OSSObjectType

The type of the object.

✓

OSSStorageClass

Storage Class

✓

OSSTagging.*

The tags of the object.

✓

OSSTaggingCount

Number of Tags

✓

OSSUserMeta.*

Custom Information

✓

OSSExpiration

The time when the object expires.

✓

AccessControlAllowOrigin

The origins from which cross-origin requests are allowed.

✓

AccessControlRequestMethod

The allowed methods that are used to send cross-origin requests.

✓

ServerSideDataEncryption

Server-side data encryption

✓

ServerSideEncryption

Server-Side Encryption

✓

ServerSideEncryptionCustomerAlgorithm

The server-side encryption algorithm specified by the customer.

✓

ServerSideEncryptionKeyId

Server-Side Encryption Key

✓

CacheControl

HTTP Caching

✓

ContentDisposition

HTTP Response Handling

✓

ContentEncoding

The content encoding format of the object when the object is downloaded.

✓

ContentLanguage

Response Language

✓

Image information

ImageHeight

The height of the image.

✓

ImageWidth

The width of the image.

✓

Video information

VideoHeight

The height of the video.

✓

VideoWidth

The width of the video.

✓

VideoStreams.CodecName

Encoder Name

✓

VideoStreams.Language

Language

✓

VideoStreams.Bitrate

The bitrate of the video stream.

VideoStreams.FrameRate

Frame Rate

VideoStreams.StartTime

Start Time

VideoStreams.Duration

Duration

VideoStreams.FrameCount

The number of video frames.

VideoStreams.BitDepth

Pixel Bit Depth

VideoStreams.PixelFormat

Pixel Format

VideoStreams.ColorSpace

Color space

VideoStreams.Height

The height of the video resolution.

VideoStreams.Width

The width of the video resolution.

Audio information

AudioStreams.CodecName

Encoder Name

✓

AudioStreams.Bitrate

The bitrate.

AudioStreams.SampleRate

The sampling rate.

AudioStreams.StartTime

Start Time

AudioStreams.Duration

Duration

AudioStreams.Channels

The number of sound channels.

AudioStreams.Language

Language

✓

Subtitle information

Subtitles.CodecName

Encoder Name

✓

Subtitles.Language

The language of the subtitle.

✓

Subtitles.StartTime

Start Time

Subtitles.Duration

Duration

Media information

Bitrate

The bitrate.

✓

Artist

The artist.

✓

AlbumArtist

The artist of the album.

✓

Composer

The composer.

✓

Performer

The performer.

✓

Album

Collection

✓

Duration

The duration of the media.

✓

Geographic information

Addresses.AddressLine

The full address.

✓

Addresses.City

The city.

✓

Addresses.Country

The country.

✓

Addresses.District

The district.

✓

Addresses.Language

The language of the address.

✓

Addresses.Province

The province.

✓

Addresses.Township

Township

✓