Build Scalar Indexes for Fast Queries with CreateIndex API - AnalyticDB for PostgreSQL - Alibaba Cloud - AnalyticDB

Creates a scalar index on a collection. The table is write-locked during index creation. For tables with large data volumes, index creation consumes significant CPU and I/O resources. If this impacts instance availability, call CancelCreateIndexJob to cancel the operation.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

gpdb:CreateIndex

create

*Collection

acs:gpdb:{#regionId}:{#accountId}:collection/{#DBInstanceId}

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the instance.	cn-hangzhou
DBInstanceId	string	No	The cluster ID. Note You can call the DescribeDBInstances operation to query the IDs of all AnalyticDB for PostgreSQL instances in the specified region.	gp-xxxxxxxxx
WorkspaceId	string	No	The workspace ID. A workspace consists of multiple AnalyticDB for PostgreSQL instances. You must specify this parameter or DBInstanceId. If both are specified, this parameter takes precedence. Valid values: ip l2 cosine	gp-ws-*****
Namespace	string	Yes	The namespace name. Note You can call the ListNamespaces operation to query a list of namespaces.	mynamespace
NamespacePassword	string	Yes	The password of the namespace. Note This value is set when you call the CreateNamespace operation.	testpassword
Collection	string	Yes	The name of the collection. Note You can call the ListCollections operation to query a list of collections.	testcollection
IndexName	string	No	The name of the index.	testindex
IndexField	string	No	The field to index. Only a single field is supported, and it must be a metadata key.	title
IndexConfig	string	No	The index configuration. If not specified, a B-tree index is created. Note b-tree: To create a B-tree index, set the fillFactor parameter to a value between 10 and 100. Default value: 90. gin: To create a GIN index, set the fastUpdate parameter to true or false. Default value: true.	{"b-tree":{"fillFactor":90}} or {"gin":{"fastUpdate":false}}

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	ABB39CC3-4488-4857-905D-2E4A051D0521
Message	string	The response message.	Successfully create job
Status	string	The status of the operation. Valid values: success fail	success
JobId	string	The job ID. You can use this ID to query the job status or cancel the job.	231460f8-75dc-405e-a669-0c5204887e91

Examples

Success response

JSON format

{
  "RequestId": "ABB39CC3-4488-4857-905D-2E4A051D0521",
  "Message": "Successfully create job",
  "Status": "success",
  "JobId": "231460f8-75dc-405e-a669-0c5204887e91"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.