Delete query from SQL Server 2008 to linked Postgres
DELETE data on linked server if user rights maped properly
run the same as normal SQL DELETE command, with full object names:

DELETE FROM [PGSQL].[demodata].[dbo].[tbl_Master]
SELECT * FROM [PGSQL].[demodata].[dbo].[tbl_Master]



  [Name of Linked Server].[database].[schema].[table]