[RDBMS] az postgres flexible-server update: BUG FIX, correcting use of argument --standby-zone when enabling high availability
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Pull request overview
This PR fixes a bug in the az postgres flexible-server update command where updating a server to enable high availability with a standby zone was incorrectly failing with an InvalidParameterValue error.
Key Changes:
- Fixed logical operator in high availability validator from OR to AND to properly validate when standby zones can be specified
- Added
availability_zoneparameter to theServerForPatchobject to ensure the primary zone is included when updating HA settings
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| src/azure-cli/azure/cli/command_modules/rdbms/validators.py | Corrected validation logic to allow setting standby zone when either high availability mode OR zonal resiliency is enabled (changed from requiring both) |
| src/azure-cli/azure/cli/command_modules/rdbms/flexible_server_custom_postgres.py | Added availability_zone to ServerForPatch parameters to satisfy API requirements when updating high availability with standby zone |
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mattboentoro
approved these changes
Dec 19, 2025
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@evelyn-ys Please trigger checks and review |
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@evelyn-ys please merge |
evelyn-ys
approved these changes
Dec 23, 2025
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Related command
az postgres flexible-server updateDescription
az cli is returning invalid parameter when there is no invalid parameter.
(InvalidParameterValue) Invalid value given for parameter StandbyAvailabilityZone,availabilityZone. Specify a valid parameter value.
Code: InvalidParameterValue
Message: Invalid value given for parameter StandbyAvailabilityZone,availabilityZone. Specify a valid parameter value.
Testing Guide
'postgres' 'flexible-server' 'update' '-g' 'rg' '-n' 'nasc-ha-930' '--zonal-resiliency' 'Enabled' '--standby-zone' '2'
{
"availabilityZone": "1",
...
"fullyQualifiedDomainName": "nasc-ha-930.postgres.database.azure.com",
"highAvailability": {
"mode": "ZoneRedundant",
"standbyAvailabilityZone": "2",
"state": "Healthy"
},
History Notes
[RDBMS]
az postgres flexible-server update: Fix bug for using argument--standby-zonewhen enabling high availability