gcloud beta sql blue-green-deployments create

INFORMATION
gcloud beta sql blue-green-deployments create is not available in universe domain universe.
NAME
gcloud beta sql blue-green-deployments create - creates a Cloud SQL blue-green deployment
SYNOPSIS
gcloud beta sql blue-green-deployments create DEPLOYMENT --source-instance=SOURCE_INSTANCE [--async] [--description=DESCRIPTION] [--region=REGION] [--target-database-version=TARGET_DATABASE_VERSION] [GCLOUD_WIDE_FLAG …]
DESCRIPTION
(BETA) Creates a Cloud SQL blue-green deployment.
EXAMPLES
To create a blue-green deployment named my-deployment from source instance my-instance in region us-central1: 
gcloud beta sql blue-green-deployments create my-deployment --source-instance=my-instance --region=us-central1

To create a blue-green deployment with a target database version for a major version upgrade: 

gcloud beta sql blue-green-deployments create my-deployment --source-instance=my-instance --target-database-version=POSTGRES_15 --region=us-central1
POSITIONAL ARGUMENTS
DEPLOYMENT
The ID of the blue-green deployment.
REQUIRED FLAGS
--source-instance=SOURCE_INSTANCE
Cloud SQL instance to be used as source for the blue-green deployment.
OPTIONAL FLAGS
--async
Return immediately, without waiting for the operation in progress to complete.
--description=DESCRIPTION
User-provided description for the blue-green deployment.
--region=REGION
Regional location (e.g. asia-east1, us-east1). See the full list of regions at https://cloud.google.com/sql/docs/instance-locations.
--target-database-version=TARGET_DATABASE_VERSION
Database version for the target instance, for major version upgrade.
GCLOUD WIDE FLAGS
These flags are available to all commands: --access-token-file, --account, --billing-project, --configuration, --flags-file, --flatten, --format, --help, --impersonate-service-account, --log-http, --project, --quiet, --trace-token, --user-output-enabled, --verbosity.

Run $ gcloud help for details.

NOTES
This command is currently in beta and might change without notice. This variant is also available: 
gcloud alpha sql blue-green-deployments create