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Following is the list of errors that the Azure Storage extension can return, and the reasons why, or the circumstances in which, they can be raised.
ERROR: azure_storage: Permission is not sufficient to perform requested operation
Is raised when executing any of the functions that interact with Azure Storage (azure_storage.blob_list, azure_storage.blob_get or azure_storage.blob_put) and the System Assigned Managed Identity isn't granted the adequate data plane roles or permissions (typically a minimum of Storage Blob Data Contributor for azure_storage.blob_put, and a minimum of Storage Blob Data Reader for the other two functions).
It may be the case that you already granted the minimum required permissions, but they aren't yet in effect. It can take a few minutes until those permissions propagate.
ERROR: azure_storage: missing storage credentials
I raised when executing any of the functions that interact with Azure Storage (azure_storage.blob_list, azure_storage.blob_get or azure_storage.blob_put) and the credentials with which you want the extension to authenticate with the storage account aren't registered using azure_storage.account_add.
ERROR: azure_storage: internal error while connecting
Is raised when the instance of flexible server can't reach the target storage account. This situation can happen in the following cases:
- The storage account doesn't exist.
- Networking configuration doesn't allow traffic originated from the instance of flexible server to reach the storage account. For example, when the instance of flexible server is deployed with public access networking, and the storage account is only accessible via private endpoints.
It can also be raised when the System Assigned Managed Identity isn't enabled in the instance of flexible server.
ERROR: azure_storage: current user <user_or_role> isn't allowed to use storage account <account_name>
Is raised when executing any of the functions that interact with Azure Storage (azure_storage.blob_list, azure_storage.blob_get or azure_storage.blob_put) with a user or role that isn't member of azure_storage_admin and isn't granted permissions, using azure_storage.account_user_add, to use the referred storage account.
ERROR: azure_storage: Query is not supported while copying data to blob storage
Is raised when executing a COPY TO statement for which the source is a query. Azure Storage extension doesn't support this syntax. It only supports the syntax on which the source of the COPY TO be a relation. As a workaround, you can implement a view with the query as its definition, and rewrite the COPY TO statement to be sourced on the view.