Empty databases list in Object Explorer with SSMS 19.2+

[staticlibs]

Databases enumeration in Object Explorer has stopped working with SSMS 19.2 and later. As a workaround for existing DB clusters the following views needs to be created on Postgres connection (default port 5432):

CREATE OR REPLACE VIEW sys.availability_replicas 
AS SELECT  
    CAST(NULL as sys.UNIQUEIDENTIFIER) AS replica_id
    , CAST(NULL as sys.UNIQUEIDENTIFIER) AS group_id
    , CAST(0 as INT) AS replica_metadata_id
    , CAST(NULL as sys.NVARCHAR(256)) AS replica_server_name
    , CAST(NULL as sys.VARBINARY(85)) AS owner_sid
    , CAST(NULL as sys.NVARCHAR(128)) AS endpoint_url
    , CAST(0 as sys.TINYINT) AS availability_mode
    , CAST(NULL as sys.NVARCHAR(60)) AS availability_mode_desc
    , CAST(0 as sys.TINYINT) AS failover_mode
    , CAST(NULL as sys.NVARCHAR(60)) AS failover_mode_desc
    , CAST(0 as INT) AS session_timeout
    , CAST(0 as sys.TINYINT) AS primary_role_allow_connections
    , CAST(NULL as sys.NVARCHAR(60)) AS primary_role_allow_connections_desc
    , CAST(0 as sys.TINYINT) AS secondary_role_allow_connections
    , CAST(NULL as sys.NVARCHAR(60)) AS secondary_role_allow_connections_desc
    , CAST(NULL as sys.DATETIME) AS create_date
    , CAST(NULL as sys.DATETIME) AS modify_date
    , CAST(0 as INT) AS backup_priority
    , CAST(NULL as sys.NVARCHAR(256)) AS read_only_routing_url
    , CAST(NULL as sys.NVARCHAR(256)) AS read_write_routing_url
    , CAST(0 as sys.TINYINT) AS seeding_mode
    , CAST(NULL as sys.NVARCHAR(60)) AS seeding_mode_desc
WHERE FALSE;
GRANT SELECT ON sys.availability_replicas TO PUBLIC;

CREATE OR REPLACE VIEW sys.availability_groups 
AS SELECT  
    CAST(NULL as sys.UNIQUEIDENTIFIER) AS group_id
    , CAST(NULL as sys.SYSNAME) AS name
    , CAST(NULL as sys.NVARCHAR(40)) AS resource_id
    , CAST(NULL as sys.NVARCHAR(40)) AS resource_group_id
    , CAST(0 as INT) AS failure_condition_level
    , CAST(0 as INT) AS health_check_timeout
    , CAST(0 as sys.TINYINT) AS automated_backup_preference
    , CAST(NULL as sys.NVARCHAR(60)) AS automated_backup_preference_desc
    , CAST(0 as SMALLINT) AS version
    , CAST(0 as sys.BIT) AS basic_features
    , CAST(0 as sys.BIT) AS dtc_support
    , CAST(0 as sys.BIT) AS db_failover
    , CAST(0 as sys.BIT) AS is_distributed
    , CAST(0 as sys.TINYINT) AS cluster_type
    , CAST(NULL as sys.NVARCHAR(60)) AS cluster_type_desc
    , CAST(0 as INT) AS required_synchronized_secondaries_to_commit
    , CAST(0 as sys.BIGINT) AS sequence_number
    , CAST(0 as sys.BIT) AS is_contained
WHERE FALSE;
GRANT SELECT ON sys.availability_groups TO PUBLIC;

[staticlibs]

The fix to this is included with release 3.3-4-9-1, closing the issue.